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Allegro MicroSystems has implemented precautionary measures to ensure the well-being and safety of our employees, their families and our greater communities. Our leadership team is closely monitoring the the status of this pandemic and its potential impact on our business. Regardless, the safety of our employees, suppliers, contractors and communities remains our highest priority.
Allegro’s new ultra-compact TSSOP8 package delivers precise current measurements for applications >200A without a magnetic concentrator core or shield - reduces size, weight and total system cost for xEV applications.
Operating at 50% larger air gaps, latest addition to Allegro’s transmission speed sensor family improves system design efficiency for optimal fuel economy.
Allegro MicroSystems has announced the release of the brand-new custom SOIC16W package, named “MC”, which marks a leap forward in the industry’s current sensing capabilities for power dense applications that require high isolation with low power loss.
Allegro MicroSystems today announced the launch of the ATS17501, the industry’s first gear tooth sensor IC designed to provide incremental position for electric vehicle traction motors operating up to 30k RPM. The device addresses engineers’ most pressing traction motor challenges—including vibration at startup and running mode, high rotational speed, mechanical space constraints, high operating temperatures, and ISO 26262 safety requirements.
Ultra-Low Iq Supply Current Ideal for “Keep-Alive” Applications
Allegro’s New Green BLDC Fan Driver Lowers Data Center Energy Use and Improves Safety
New Surface-Mount Fully Integrated Current Sensors Offer Easy Handling and Layout for High Current Density Applications
Allegro Welcomes Max Glover as Sr. VP. WW Sales. Max joins Allegro from Intel, where he served as the General Manager of the Automotive Sales Division.
Allegro's latest wheel speed sensor product line meets all the industry’s requirements from high accuracy GMR to back biased Hall-effect sensor solutions.
Allegro MicroSystems (Allegro), a leader in power and sensing solutions for motion control and energy efficient systems, will launch its latest GMR wheel speed sensor ICs at the Sensors Expo and Conference in San Jose, California, June 25-27, 2019. Exhibiting at Booth #1410, Allegro will feature its new wheel speed sensor solutions...
Allegro MicroSystems, a global leader in power and sensing semiconductor technology, has been recognized as a recipient of China Electronic Market (CEM) Magazine’s 2018 Editor's Choice Awards.
Allegro to Showcase Intelligent Solutions Ideal for Solar Applications using Current Sensor ICs at SNEC 2019
Allegro MicroSystems, a leader in power and sensing solutions for motion control and energy efficient systems, will show a new coreless current sensor IC and the industry’s quietest brushless DC (BLDC) motor control solution at the PCIM Europe 2019 Exhibition (Nuremberg, Germany, 7 – 9 May) in Hall 6, Booth 255. These new devices are he...
Allegro MicroSystems, a global leader in power and sensing solutions for motion control and energy efficient systems, today announced the A8060x family, their latest generation of advanced LED backlight drivers.
Allegro MicroSystems, a global leader in power and sensing solutions for motion control and energy efficient systems, is pleased to offer a new family of automotive AEC-Q100 qualified, monolithic Hall effect current sensor ICs. Small and energy efficient, the ACS71240 family is ideal for electric vehicle chargers, DC/DC converters, as well as industrial motor and IOT applications.
Allegro MicroSystems, a global leader in power and sensing semiconductor technology, has announced the release of the APS11450 and APS12450, adding two Hall-effect sensor ICs to its growing portfolio of solutions for systems that require functional safety. The APS11450 is a family of unipolar switch ICs, while the APS12450 devices are bipolar latches.
Allegro MicroSystems, a global leader in power and sensing solutions for motion control and energy efficient systems, has announced their latest Hall-effect current sensor IC, which delivers their highest speed and accuracy in > 400 A sensing applications to date. Ideally suited for hybrid and electric vehicle inverter applications that nee...
Allegro has been creating innovative solutions for over 30 years. We have evolved over the decades from a traditional semiconductor manufacturing company to an innovative intellectual property company. Now it’s time for our image to evolve, too. We are modernizing our brand to align with our position as a global leader in powe...
Allegro MicroSystems, a leader in power and sensing solutions for motion control and energy efficient systems, today announced the launch of the company’s QuietMotion family. This family consists of the first-to-market Field Oriented Control (FOC) brushless DC (BLDC) electric motor controllers that are customer code-free.
Manchester, NH — Allegro MicroSystems has announced the release of its most advanced transmission speed sensor family members.
The AMT49105 is an excellent fit for high-power inductive safety automotive and industrial applications, such as engine cooling fans, braking and multiple pump applications where supplies range from 5.5V to 50V.
Allegro MicroSystems has announced the release of a family of Micropower Hall-effect switch ICs—the APS11700 and APS11760—designed specifically for battery powered applications in harsh industrial and automotive environments. Automatic power management enables average supply current as low as 6µA while operating directly from a vehicle battery or other unregulated supply.
Allegro MicroSystems today announced the A17301, a new Hall-effect sensor IC ideal for two-wheeled vehicles, particularly in position and timing applications like speedometers and tachometers for engine control.
Allegro MicroSystems (Hall C5.232) is showcasing a variety of intelligent solutions at Electronica Munich that give automotive and industrial manufacturers a competitive edge – these solutions include a new coreless current sensor IC.
Allegro MicroSystems, announces the ALT80802, their latest addition to the family of 62xx/808xx LED Drivers for Lighting.
Allegro MicroSystems has released a fully integrated, small form factor, power monitoring IC with reinforced voltage isolation.
Allegro MicroSystems (Allegro), a leading supplier of high-performance power and sensor semiconductor ICs, established a new research and development center in the Czech Republic. This new center is currently staffed with two dozen engineers located in Prague. These talented engineers will accelerate Allegro’s development of market leading,...
Allegro MicroSystems (Allegro), a leader in developing high-performance power and sensing semiconductors, and United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) ("UMC"), a leading global semiconductor foundry, have signed a long-term agreement for UMC to continue as Allegro’s primary foundry wafer manufacturer.
Allegro MicroSystems announces the A8660 and ARG81801, the latest additions to their Regulators Portfolio. These devices reduce EMI through switching frequency dithering and allow system noise management though external clock synchronization.
Allegro MicroSystems, LLC is celebrating a milestone for its popular line of Gear Tooth Sensor (GTS) ICs, which surpassed one billion total units shipped. These revolutionary ICs were first released to market more than 15 years ago, and are staples in engine management, transmission and braking applications in advanced automobiles.
Allegro MicroSystems, LLC introduces a new high precision, back-biased, programmable Hall-effect sensor IC.
Allegro MicroSystems, LLC, a leader in developing high-performance power and sensor integrated circuits that serve high-growth applications within the automotive, industrial and consumer/computing markets, announced today that they have appointed Richard Du as Vice President, Asia Sales. He brings more than twenty-eight years of semiconductor indu...
Allegro MicroSystems is pleased to announce the launch of its new A-xMR™ technology platform, which the company expects to strengthen its position as the market leader in magnetic sensor integrated circuits (ICs).
Sanken North America, Inc., (SKNA), Sanken Group’s US subsidiary, announced today that its current consolidated subsidiary trade name will change to Allegro MicroSystems, Inc., (AMI) and their headquarters will move from Worcester, Massachusetts to Manchester, New Hampshire (USA).
Allegro MicroSystems, LLC is planning to relocate its Massachusetts operation from Worcester to a new facility at 100 Crowley Drive, Marlborough, MA that is being customized to the company's specific needs.
Allegro MicroSystems, LLC announces a new family of current sensor ICs that provide economical and precise solutions for AC or DC current sensing.
Allegro MicroSystems, LLC announces a new sensorless BLDC controller that is the most advanced solution on the market today.
Allegro’s ACS70331 current sensor IC incorporates giant magneto-resistive (GMR) technology that is 25 times more sensitive than traditional Hall-effect sensor ICs to sense the magnetic field generated by the current flowing through the low resistance, integrated primary conductor.
Allegro MicroSystems Europe has announced the release of a new family of 2-dimensional (2D) Hall-Effect Latch ICs that feature both vertical and planar Hall elements.
Allegro MicroSystems, LLC announces a new package offering for the wheel speed sensor product family. The package includes an optimised Hall-effect integrated circuit (IC), rare-earth pellet, and high-temperature ceramic capacitor in a single overmoulded package.
Allegro MicroSystems, LLC announces a new power management IC that integrates a buck or buck/boost pre-regulator, four LDOs, and four floating gate drivers.
Allegro MicroSystems, LLC announces a new three-phase MOSFET driver IC with an integrated low dropout regulator supplying 5 V or 3.3 V. Allegro’s A4919 is designed for a wide range of industrial applications.
Allegro MicroSystems, LLC adds a new generation of high bandwidth current sensor ICs to their existing family of devices. The Allegro’s ACS732 and ACS733 current sensor ICs provide a compact, fast, and accurate solution for measuring high-frequency currents in DC/DC converters and other switching power applications.
Allegro MicroSystems, LLC, a leader in developing high-performance power and sensor semiconductors, held a groundbreaking ceremony today on a 15,000-square foot expansion at their Manchester, NH facility.
Allegro MicroSystems, LLC introduces a new 0° to 360° angle sensor ICs that provide contactless high-resolution angular position information based on magnetic Circular Vertical Hall (CVH) technology.
Allegro MicroSystems, LLC introduces a new quad DMOS full-bridge driver capable of driving up to two stepper motors or four DC motors. The AMT49701 was designed specifically for dual axis, point of sale, office automation, security, surveillance, IP cameras, as well as industrial automation applications.
Allegro MicroSystems, LLC introduces two new 0° to 360° angle sensor ICs that provide contactless high-resolution angular position information based on magnetic Circular Vertical Hall (CVH) technology.
Allegro MicroSystems, LLC introduces a new automotive bipolar stepper motor driver IC or dual DC motor driver IC that is designed for pulse-width-modulated (PWM) control of low-voltage stepper motors and dual or single high current DC motors.
Allegro MicroSystems, LLC introduces the release of a three-phase, sensorless, brushless DC (BLDC) motor controller for use with external N-channel power MOSFETs.
Sanken North America, Inc. (SKNA) announced today that One Equity Partners (OEP), a middle market private equity firm with deep technology expertise, has completed a minority investment in SKNA. SKNA sold 28.8% of newly issued shares to One Equity Partners for $291 million with the proceeds returning to Sanken Electric Co., Ltd. in the form of a special dividend.
Allegro MicroSystems, LLC announces a new optimized Hall-effect three-wire differential speed sensor integrated circuit (IC) and permanent magnet pellet combination.
Allegro MicroSystems, LLC announces the release of a new three-axis linear Hall-effect sensor IC that provides 12-bit digital output words that are proportional to the strength of the field present in each of the X, Y, and Z axes. The quiescent output value (zero magnetic field applied) is at mid-scale.
Allegro MicroSystems, LLC has announced the release of a new wide input 5 V output regulator designed to power automotive sensors and low power uControllers. It can also be used for non-automotive applications where the input voltage could be above or below 5 V.
Allegro MicroSystems, LLC introduces a new high accuracy Hall-effect-based current sensor IC with multiple programmable fault levels intended for industrial and consumer applications with a focus on motor control and power inverter stage applications.
Allegro MicroSystems, LLC announces two new N-channel power MOSFET driver ICs capable of controlling MOSFETs connected in a half-bridge arrangement.
Allegro MicroSystems, LLC introduces a new quad DMOS full-bridge driver IC capable of driving up to two stepper motors or four DC motors. Each full-bridge output is rated up to 1.6 A and 40 V.
Sanken Electric Company, Ltd., (Sanken) announced today that One Equity Partners, (OEP), a middle market private equity firm with deep technology expertise, will make a minority investment in Sanken North America, Inc.,
Allegro MicroSystems, LLC announces the release of a new family of two-wire vertical Hall-effect switch ICs with advanced diagnostics. Allegro’s A1130, A1131, and A1132 have been developed in accordance with ISO 26262.
Allegro MicroSystems, LLC introduces a new optimized Hall-effect integrated circuit (IC) and rare-earth pellet combination that provides a user-friendly solution for direction detection and true zero-speed, digital gear-tooth sensing.
Allegro MicroSystems, LLC has been selected as a winner in the prestigious China Electronics Market (CEM) Editor’s Choice Awards 2016 for the A1162 Hall-effect sensor IC, designed with an externally enabled diagnostic function and user-programmable switch points.
Allegro MicroSystems, LLC announces the release of a new micropower LED driver IC that features an integrated Hall-effect switch. The APS13568 enables compact, elegant, reliable, and fault-tolerant LED lighting with minimal electrical engineering and low component-count and cost.
Allegro MicroSystems, LLC announces two new linear Hall-effect sensor ICs with analog output, targeted at the automotive and industrial markets.
A new gear-tooth sensor in an optimised, industry-proven, Hall- effect integrated circuit (IC), rare-earth pellet, and high temperature ceramic capacitor in a single over molded package. The integrated capacitor reduces the need for external EMI protection.
At the PCIM Europe 2017 Exhibition (Hall 7 stand 441), Allegro MicroSystems Europe is featuring its extensive range of sensor ICs for position, angle and speed sensing, current sensors, motor drive ICs and power devices for lighting applications, including a number of new products.
- Allegro MicroSystems, LLC announces a new motor driver IC designed for pulse-width-modulated (PWM) control of DC motors. Allegro’s A5950 is capable of peak output currents up to ±3 A and operating voltages up to 40 V.
Allegro MicroSystems, LLC announces a 5V family of AEC-Q100 qualified three-wire Hall-effect latches.
Allegro MicroSystems Europe has introduced a new power management IC that uses a buck or buck-boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage, complete with control, diagnostics, and protections. The output of Allegro’s A4408 supplies a 5 V / 115 mA tracking/protected LDO, a 3.3 V / 165 mA LDO, a 5 V / 325 mA LDO, and an adjustable output synchronous buck regulator (1.25 V / 700 mA).
Allegro MicroSystems, LLC announces a new three-phase brushless BLDC motor controller for use with N-channel external power MOSFETs.
Allegro MicroSystems, LLC introduces two new 0° to 360° angle sensor ICs that provide contactless high-resolution angular position information based on magnetic Circular Vertical Hall (CVH) technology.
Allegro MicroSystems, LLC introduces a new N-Channel power MOSFET driver capable of isolating a three phase load by controlling the in-phase isolation MOSFETS.
Allegro MicroSystems, LLC introduces a new programmable linear Hall-effect sensor IC designed for applications that require high accuracy and high resolution without compromising bandwidth.
Allegro MicroSystems, LLC announces a new low voltage bipolar stepper or dual DC motor driver IC.
Allegro MicroSystems, LLC announces a new dual die, highly programmable linear hall sensor IC that is an ideal solution for safety-critical applications. It incorporates full die redundancy with the added benefits of full diagnostics.
Allegro MicroSystems, LLC announces a new linear hall IC targeted at the automotive and industrial markets. New applications for linear output Hall-effect sensor ICs, such as displacement and angular position, require higher accuracy and smaller package sizes. Allegro’s ALS31000 linear Hall-effect sensor IC has been designed specifically to meet both requirements.
Allegro MicroSystems, LLC announces a new high-precision, programmable Hall-effect linear sensor integrated circuit (IC) with an open-drain output, for both automotive and nonautomotive applications.
Allegro MicroSystems, LLC introduces a new automotive, AEC-Q100 qualified single IC switching regulator that provides constant-current output to drive high-power LEDs.
Allegro MicroSystems, LLC announces the release of a new family of fully integrated current sensor linear ICs in a new core-less package designed to sense AC and DC currents up to 100 A.
Allegro MicroSystems, LLC announces a new package option for their A119x/A119x-F (A1190, A1192, and A1193) family of two-wire, unipolar, Hall-effect switches, which can be trimmed by the user at end-of-line to optimize magnetic switchpoint accuracy in the application.
Allegro MicroSystems, LLC announces a new 40 V dual full-bridge driver capable of driving two DC motors with outputs rated up to 3.2 A. Allegro’s A5995 device includes fixed off-time pulse-width modulation (PWM) regulators for current control.
Allegro MicroSystems, LLC announces a new power management IC that can be configured as a buck or buck-boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage complete with control, diagnostics, and protections.
Allegro MicroSystems, LLC announces a new 40 V motor driver IC capable of driving one stepper motor and one DC motor. The stepper driver outputs are rated up to 1.6 A and the DC driver at 3.2 A.
Allegro MicroSystems, LLC announces two new adjustable linear current regulators for driving automotive LED arrays. Allegro’s AEC-Q100 qualified A6274 and A6284 devices include many new features designed to further enhance the existing family of Linear LED drivers.
Allegro MicroSystems, LLC introduces a new automotive AEC-Q100 qualified power management IC.
Allegro MicroSystems, LLC announces a new field programmable linear Hall-effect current sensor IC with features including a 240 kHz bandwidth, integrated voltage regulator, reverse battery protection, user-selectable ratiometry, and uni- or bi-directional output options.
Allegro MicroSystems, LLC announces a new integrated bipolar stepper motor driver IC with built-in translator for easy operation.
In response to market requests of a highly integrated speed sensor with advance algorithm PCB mounted systems, Allegro has released the A1667 in a surface mount SOIC-8 package.
Allegro MicroSystems, LLC, and its Board of Directors, has appointed Ravi Vig as President and Chief Operating Officer of Allegro and as a member of the Sanken North America, Inc. (SKNA) Board of Directors, effective immediately.
Allegro MicroSystems, LLC announces a new unipolar Hall-effect switch with an externally enabled diagnostic function and user-programmable switchpoints. Allegro’s A1162 has on-chip electromagnetic coils that are used to implement self-test of the sensor’s entire magnetic and electrical signal chain.
Allegro MicroSystems, LLC announces a new quad DMOS full-bridge driver IC capable of driving up to two stepper motors or four DC motors. Each full-bridge output is rated up to 1.6 A and 40 V. The A5988 includes fixed off-time pulse-width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be controlled in full, half, and quarter steps, and DC motors in forward, reverse, and coast modes. The PWM current regulator uses the Allegro™ patented mixed decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation. This new device is targeted at the consumer and office automation markets with end applications to include closed circuit TV (pan and tilt) applications, scanners, POS, laser, inkjet and label printers.
Allegro MicroSystems, LLC announces its first-ever 1 MHz bandwidth Hall-effect current sensor IC with a lightning-fast 210 ns response time. The ACS730 provides an economical and precise solution for AC or DC current sensing. Allegro’s ACS730 is targeted at industrial, commercial, and communications systems. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
Allegro MicroSystems, LLC introduces two new adjustable high frequency DC-DC step-down switching regulators with an integrated high-side power MOSFET ideal for power supply requirements of the latest infotainment systems. Allegro’s A8586 provides up to 2.5 A output current; while the A8587 has output current of up to 2.0 A. Both are AEC-Q100 qualified and incorporate current mode control for fast transient response. The wide input range of 3.8 V to 36 V makes both devices suitable for a wide range of step-down applications, including those in an automotive input environment. Battery driven “keepalive” applications benefit from the low 30 μA operational quiescent current. Both devices are designed to robustly handle a load dump condition with 40 V maximum rating as well as idle-stop and cold crank conditions with 3 V UVLO rating.
Allegro MicroSystems, LLC announces two new current sensor ICs that are economical and precise solutions for AC or DC current sensing. These devices are ideal for use in industrial, commercial, and communication systems that require very high voltage isolation. These devices are not for use in automotive applications. Both the ACS724KMA (5 V) and the ACS725KMA (3.5 V) are available in a very small package that is ideal for space-constrained applications while saving cost due to reduced board area. They are packaged in a high-isolation SOIC16 wide body surface mount package that provides reinforced isolation. The differential sensing technology provides immunity to interfering common mode magnetic fields from adjacent current traces or motors. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
Allegro MicroSystems, LLC announces a new integrated bipolar stepper motor driver IC with built-in translator for easy operation. Allegro’s A5984 is designed to operate bipolar stepper motors from full-step up to 1/32 step modes that are selectable by MSx logic inputs. This new device has an output drive capacity of up to 40 V and ±2 A and operates with a single supply. It is targeted at the office and industrial automation markets with key applications to include: automatic teller machines, point of sale and laser printers, 3D printers, copiers, CCTV, cameras, sewing machines, vending, and robotics, DMOS.
Allegro MicroSystems, LLC announces the release of the world’s first LED driver IC that features an integrated Hall-effect switch. The A1569 enables compact, elegant, reliable, and fault-tolerant LED lighting with minimal electrical engineering and low component-count and cost. A single silicon chip integrates: a Hall plate, a small-signal amplifier, chopper stabilization, a Schmitt trigger, and a LED driver with soft on/off and short circuit and thermal protection with automatic recovery. The integrated solid-state Hall-effect switch supports silent, sealed, contactless activation and offers a significant upgrade from failure-prone mechanical switches.
Allegro MicroSystems, LLC introduces a new buck regulator designed for power supply requirements of the latest infotainment systems. The device provides all the control and protection circuitry to produce a 2 Amp regulator with ±1% output voltage accuracy. The A8591 employs pulse-frequency modulation (PFM) to draw less than 33 μA from 12 Volts input while supplying 5 V/40 μA output, making it ideal for automotive battery powered “keepalive” applications.
Allegro MicroSystems, LLC introduces a new family of complete microstepping motor driver ICs with built-in translators. Allegro’s A5976, A5977 and A5979 have been designed to operate bipolar stepper motors in full-, half-, quarter-, eight, (A5977) and sixteenth- (A5976/79) step modes. All have the output drive capability of 40 V and ±2.8 A and include a fixed off-time current regulator that has the ability to operate in slow-, fast-, or mixed-decay modes. This current-decay control scheme results in reduced audible motor noise, increased step accuracy, and reduced power dissipation. These devices are targeted at the office automation and industrial automation markets including textile and sewing machines, vending machines, printers, scanners, copiers, closed circuit TV camera positioning, ATM machines, 3D printing systems, and food industry applications.
Allegro MicroSystems, LLC announces two new single-IC switching regulators that provide constant-current output to drive high-power LEDs. Allegro’s A6214 and A6216 devices integrate a high-side N-channel DMOS switch for DC-to-DC step- down (buck) conversion. A true average current is output using a cycle-by-cycle, controlled on-time method. Combined with automotive-grade quality and feature-rich functionality, a host of safety and robust protection features makes the A6214 and A6216 devices ideal for automotive lighting applications where high quality and reliability are highly desired and essential.
Allegro MicroSystems, LLC introduces a new family of full bridge gate driver ICs designed to drive a wide range of DC brushed motors with simple logic from a microprocessor. The A4955/56 and A5957 devices can support motor supply voltages up to 50 V and load currents of up to 20 A. These devices are targeted for both the industrial and consumer markets in applications such as robotic vacuums, vending machines, cash dispensing machines, coffee vending machines, ticketing machines, automatic gates and turnstiles, and sewing machines.
Allegro MicroSystems, LLC announces a new 360° contactless high-resolution programmable magnetic angle position sensor IC that has been designed for digital systems. Allegro’s A1335 device has a system-on-chip (SoC) architecture with a front-end based on Circular Vertical Hall (CVH) technology, programmable microprocessor-based signal processing, and supports multiple communication interfaces including I2C, SPI, and SENT.
Allegro MicroSystems, LLC announces a new, AEC-Q100 qualified, linear voltage regulator IC with control, diagnostics, and protection features that address requirements of automotive applications. Allegro’s A4481 regulates input voltages between 5.25 to 40 V, down to a 5 V ±1% accurate output voltage, and is able to supply up to 50 mA of load current. This new device is designed to power sensors, low-power microcontrollers, and transceivers in interior and underhood automotive control units.
Allegro MicroSystems, LLC announces a new power management IC that uses a buck or buck-boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage, complete with control, diagnostics, and protections. The unique buck-boost design of Allegro’s A4409, allows sub-5V input voltage operation to accommodate the latest automotive idle-stop requirements. The output of the main switching regulator supplies two 5V LDOs, one at 300 mA and the other at 200 mA. Designed to supply power to microprocessor/DSP plus sensors, transceivers, and other loads, the A4409 is ideal for Automotive Control Units.
Allegro MicroSystems, LLC announces the release of a unique dual-channel Hall-effect latch featuring two-dimensional (2D) sensing via a combination of vertical Hall and planar Hall elements. The quadrature outputs of the A1262 allow rotation direction and position to be determined, such as when sensing a rotating ring-magnet target.
Allegro MicroSystems, LLC announces the release of a fast-recovery rectifier diode series that incorporates a Schottky barrier diode (SBD) for temperature detection. The FMKS series is used for thermal protection of switching power supplies for various applications and is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan. This new series is targeted at the consumer and industrial markets with end applications to include: white goods, audio & visual equipment, lighting equipment, telecommunication equipment, as well as for secondary-side rectification of switching power supplies.
Allegro MicroSystems, LLC announces a new package option for their A115x (A1152, A1153, A1156, and A1157) family of two-wire, unipolar, Hall-effect switches, which are factory-trimmed to optimize magnetic switchpoint accuracy. These devices are produced on the Allegro™ advanced BiCMOS wafer fabrication process, which utilizes a patented high frequency, 4-phase, chopper-stabilization technique. This technique achieves magnetic stability over the full operating temperature range, and eliminates offsets inherent in devices with a single Hall element that are exposed to harsh application environments. This new package option eliminates the need for an external capacitor and the associated PCB, saving size, component-count, assembly cost and significantly simplifying the design process.
Allegro MicroSystems, LLC introduces a new two-wire Hall-effect latch with increased magnetic sensitivity. The A1245 latch is produced on the Allegro™ advanced BiCMOS wafer fabrication process. It implements Allegro’s patented high frequency, 4-phase, chopper-stabilization techniques to achieve magnetic stability over its full operating temperature range, -40 to +150ºC. A Hall-effect latch will be in the high output current state in the presence of a magnetic south polarity field of sufficient magnitude and will remain in this state until a sufficient north polarity field is present.
Allegro MicroSystems, LLC announces a new full-bridge controller for use with N-channel external power MOSFETs that has been specifically designed for automotive applications. Allegro’s A5929 has a unique charge pump regulator that provides full (>10 V) gate drive at battery voltages down to 7 V and allows the device to operate with reduced gate drive at battery voltages down to 5.5 V. A bootstrap capacitor is used to provide the above battery supply voltage required for N-channel MOSFETs.
Allegro MicroSystems, LLC expands its automotive regulator portfolio by adding two devices targeted specifically at USB power applications. Allegro’s A8652 and A8653 devices are high output current synchronous buck regulator ICs that provide tight load regulation over a wiring harness without the need for remote sense lines. This remote load regulation is achieved with an integrated open-loop correction scheme that, given a known wiring harness resistance, adjusts the output voltage based on the measured load current and a user programmable gain, achieving ±2% accuracy at 500 mV of correction. The Remote Load Regulation control includes a 115% regulated voltage clamp in conjunction with a dynamic over voltage protection with OVP threshold changing with the correction voltage.
Allegro MicroSystems, LLC introduces a new high output current synchronous buck regulator IC that integrates low RDSon high-side and low-side N-channel MOSFETs. Allegro’s A8654 incorporates PWM current mode control to provide simple compensation, excellent loop stability and fast transient response. The A8654 utilizes external compensation to accommodate a wide range of power components to achieve both excellent loop stability and desirable transient response. This new buck regulator IC is targeted at the automotive, industrial and instrumentation markets with typical end applications to include infotainment and GPS systems, automobile audio and camera systems, home audio, and industrial systems.
Allegro MicroSystems, LLC introduces a new family of contactless, Hall-effect based magnetic sensor ICs for high speed motor position sensing applications. Allegro’s dual-die A1331 and A1334 angle sensor ICs are based on vertical Hall-effect technology. The A1331 and A1334 devices, with their system-on-chip (SoC) architectures, provide fast output refresh rates and low signal path latency to support a wide variety of demanding automotive and industrial applications. Both devices are ideal for automotive applications such as electronic power steering (EPS) or power braking motor position sensing, transmission actuator position sensing, throttle/pedal position detection, and other systems that require accurate measurement of angular or rotary position.
Allegro MicroSystems, LLC announces a new Vertical Hall-effect Sensor IC that is an extremely temperature-stable and stress-resistant magnetic sensing device ideal for harsh operating environments. Allegro’s A1260 is actuated by alternating north and south polarity magnetic fields in plane with the device’s branded face rather than perpendicular to the branded face, as in a traditional Hall-effect sensor. This enables system designers to achieve new mechanical configurations not feasible with traditional planar Hall sensors, including replacing through-hole SIP devices with tiny surface-mount SOT23 ICs, saving space and cost.
Allegro MicroSystems, LLC introduces a new linear Hall-effect sensor IC that provides a 12-bit digital output word that is proportional to the strength of the magnetic field that is present. The quiescent output value of the A1454 is at mid-scale, and it comes in two different factory programmed sensitivity ranges: 2LSB/G & 4LSB/G. The sensitivity temperature coefficient is also factory programmed to support either Neodymium or Ferrite magnets. Allegro’s A1454 is targeted at the consumer, industrial and instrumentation markets with end applications to include non-life critical medical and consumer devices that require linear position sensing.
Allegro MicroSystems, LLC announces the A1266, a unique sensor IC incorporating a combination of vertical and traditional planar Hall-effect sensor ICs that can detect a magnetic field of either polarity in any direction. Its omnipolar, omnidirectional sensitivity makes it ideal for detecting magnetic tampering in smart meters, ATMs, gambling/gaming machines, ticket machines, and electronic locks. The A1266 can also serve as a general-purpose magnetic switch that is relatively insensitive to magnet orientation or polarity in applications such as games, consumer electronics, white goods, etc.
Allegro MicroSystems, LLC introduces a new DC-DC converter controller, providing a programmable constant current output for driving high power LEDs in series. Allegro’s A6271 controller is based on a programmable fixed frequency, peak current mode control architecture. The DC-DC converter can be configured in a myriad of different switching configurations including boost, buck-boost, SEPIC and buck (ground referenced switch). This new device is designed for automotive exterior lighting applications to include high power LED lighting systems, fog lights, reversing lights, daytime running lights (DRLs), position lights, and headlights.
Allegro MicroSystems, LLC announces two new current sensor ICs that are economical and precise solutions for AC or DC current sensing in industrial and commercial systems. Allegro’s ACS722 and ACS723 are highly accurate devices that offer superior isolation performance, low power consumption, and a wide operating temperature range with near zero magnetic hysteresis in a surface mount package. The small package is ideal for space constrained applications while also saving costs due to reduced board area, yet provides a 4800 VRMS isolation rating, the highest available from Allegro surface mount current sensor ICs. Typical applications include motor control, solar inverters, home automation and monitoring as well as those applications requiring reinforced isolation ranges. (Please note that these devices are not designed for use in automotive applications.)
Allegro MicroSystems, LLC introduces a new customer programmable, high accuracy linear Hall effect-based current sensor IC. Allegro’s A1369 is packaged in a thin 3-pin SIP package to allow for easy integration with a magnetic core to create a highly accurate current sensing module. The programmable nature of the A1369 enables it to account for manufacturing tolerances in the final current sensing module assembly. These modules can be used in a variety of applications including electric power distribution and solar and wind power applications.
Allegro MicroSystems, LLC announces two new current sensor ICs that are economical and precise solutions for AC or DC current sensing in industrial, automotive, commercial, and communications systems. Allegro’s ACS724 (5 V) and ACS725 (3.3 V) are highly accurate devices with a very small package. Both devices are ideal for space constrained applications that will save overall costs due to reduced board area.
Allegro MicroSystems, LLC has been awarded the ISO 26262 process certification by SGS-TÜV Saar GmbH. The International Organization for Standardization (ISO) released this safety standard in 2011 to comply with needs specific to the application sector of electrical/electronic (E/E) systems within road vehicles designated as: ISO 26262: Road Vehicles – Functional Safety. Allegro is a leading supplier of automotive electronic integrated circuits and is fully supportive of this safety initiative.
Allegro MicroSystems, LLC announces two new current sensor ICs that are economical, high isolation solutions for AC or DC current sensing in industrial, commercial, and communications systems. Allegro’s ACS717 and ACS718 devices have a very small package that is ideal for space constrained applications, though the wide-body provides the creepage and clearance needed for high isolation. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
Allegro MicroSystems, LLC introduces a new Hall-effect speed and direction sensor IC with hysteresis detection. The A1232 is a highly sensitive, temperature stable magnetic sensing device ideal for use in ring magnet based speed and direction systems in harsh automotive and industrial environments. It is the first device of its kind with the ability to detect when it powers up in the magnetic hysteresis band. This feature reduces angle accuracy error, which can occur when edges are missed at start-up. This new magnetic sensor IC is targeted at the automotive motor market. Key applications include: window lifts, sunroofs, sliding doors, and tail/trunk lift gates. This new device is also suitable for applications such as garage door openers and window blinds.
Allegro MicroSystems, LLC announces a new AEC-Q100 qualified, multiple-output regulator for powering automotive LCD displays. Allegro’s A8603 operates with fixed switching frequency that can be either programmed or synchronized with an external clock signal between 350 kHz and 2.25 MHz. This will minimize interference with AM and FM radio bands. An I²C™-compliant serial interface allows a system microcontroller to configure the A8603 by writing into its internal registers. A system controller can also access A8603’s status registers in case of fault conditions.
Allegro MicroSystems, LLC announces a new buck regulator IC to add to its industry leading lineup of automotive regulators. Allegro’s A8590 has been designed to provide the power supply requirements of next generation car audio and infotainment systems. The A8590 provides all the control and protection circuitry to produce a 3.0 A regulator to withstand the rigors of wide automotive battery input voltages. In addition to automotive infotainment applications, the A8590 can also be used in cluster and center stack applications as well as in advanced driving assistance systems (ADAS).
Allegro MicroSystems, LLC announces a new three-phase, sensorless, brushless DC (BLDC) motor controller for use with external complementary P-channel and N-channel power MOSFETs. Reliable sensorless startup and run commutation can quickly be customized for individual motors and loads with adjustment of a few simple default parameters saving considerable design time. The A4963 fits a wide range of applications since the output current requirements can be scaled up or down with external MOSFET selection and it has a wide DC supply voltage range of 4.2 V to 50 V. This new motor controller is targeted at the consumer, industrial and white goods markets with end applications to include: pumps, blowers, power and garden tools, hair dryers, portable mixers, and airborne drones.
Allegro MicroSystems, LLC introduces a new family of contactless Hall magnetic sensors with the debut of its A1332 and A1334 high resolution 360° angle sensor ICs. Based on magnetic Circular Vertical Hall (CVH) technology, the A1332 and A1334 devices, with their system-on-chip (SoC) architectures, provide fast output refresh rates and low signal path latency to support a wide variety of demanding automotive and industrial applications. Both devices are ideal for automotive applications such as electronic power steering (EPS), transmission, motor position, throttle/pedal position, and other systems that require accurate measurement of angles.
Allegro MicroSystems, LLC introduces two new devices to complement their existing portfolio of LED Driver ICs for LCD backlighting applications. Allegro’s A8518 and A8519 devices integrate a current-mode boost converter with internal power switch with either two current sinks (dual string) in their A8518 or four current sinks (quad string) in their A8519. Both devices are targeted at the automotive and industrial markets with end applications to include automotive infotainment and instrument cluster LCD backlighting, heads-up displays, interior lighting, accent lighting and robust commercial and industrial backlighting and lighting applications.
Allegro MicroSystems, LLC announces a new factory-programmable linear Hall-effect current sensor IC. Allegro’s A1366 has been designed to achieve high accuracy and resolution. The goal is achieved through new proprietary linearly interpolated temperature compensation technology that is programmed at the Allegro factory, which provides sensitivity and offset that are virtually flat across the full operating temperature range. The flat performance over temperature makes this IC ideally suited for current sensing applications. Temperature compensation is done in the digital domain with integrated EEPROM technology without sacrificing the analog signal path bandwidth. The A1366 high frequency operation was designed for HEV inverter, DC-to-DC converter, and electric power steering (EPS) applications, but can be used for any current sensing system requiring high bandwidth operation.
Allegro MicroSystems, LLC announces a new addition to their existing family of Low Noise Block Regulators (LNBRs). Allegro’s A8302 dual LNB Regulator IC has a comprehensive set of features and functions that can be used for all dual tuner satellite receiver applications. The A8302 consists of a monolithic switching and linear voltage regulator, specifically designed to provide the power and interface signals to an LNB down converter via coaxial cable in satellite TV receivers systems.
Allegro MicroSystems, LLC introduces a new Allegro current sensor IC that is an economical and precise solution for AC current sensing in in¬dustrial, commercial, and communications systems. Allegro’s ACS726 is the first current sensor IC to include a fully differential back end amplifier that can be used to adjust gain and bandwidth via external RC networks. The back end amplifier is fully independent and when unused, can be powered down to reduce power consumption. The fully differential output of this device gives better immunity to output offset drift as well as common mode noise.
Allegro MicroSystems, LLC announces two new current sensor IC devices that are true +/- 5 A sensor ICs or uni-directional 10 A sensor ICs for use in low power applications that require higher output swings at lower current. Allegro’s ACS722 and ACS723 devices provide an economical and precise solution for AC or DC current sensing in industrial, commercial, and communications systems. The small package is ideal for space constrained applications while also saving costs due to the reduced board area. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
Allegro MicroSystems, LLC announces the release of the next generation series of silicon carbide schottky barrier diodes. The FMCA series achieves low leakage current and high speed switching at high temperatures and is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan. This new series is targeted at the industrial and computer markets with end applications to include servers and those that require high frequency rectification circuits.
Allegro MicroSystems, LLC introduces a new Hall-effect based integrated circuit (IC) that provides a user-friendly solution for true zero-speed digital ring magnet and gear tooth sensing in two-wire applications. Allegro’s A1688 wheel speed sensor IC is targeted at the automotive market and contains industry leading features such as outstanding pitch deviation accuracy, consistent Icc distribution: >6 sigma, low jitter and enhanced EMC performance, and simple module assembly by utilizing a built-in cap and wider lead width/spacing.
Allegro MicroSystems, LLC introduces a new N-channel power MOSFET driver capable of isolating a three phase load by controlling the in phase-isolation MOSFETS. Allegro’s A6861 motor driver IC is intended for automotive systems that must meet Automotive Safety Integrity Level (ASIL) requirements. Key applications include: EPS (Electronic Power Steering) systems, electric braking, and three-phase relay drivers.
Allegro MicroSystems, LLC introduces a new automotive 2.0 A buck regulator that is designed to provide the low power supply requirements of next generation car audio and infotainment systems. Allegro’s A8585 device is a high-efficiency converter targeted at the automotive and industrial markets with end applications to include automotive infotainment, instrumentation clusters, center stack applications and advanced driver assistance systems.
Allegro MicroSystems, LLC announces the release of a unique dual-output sensor solution that provides a single IC to rotational position sensing applications with a ferrous gear target. Providing a single IC allows for uncomplicated mechanical design and installation and provides the capability to sense much smaller or higher resolution teeth for added accuracy. Allegro’s ATS605 is targeted at the automotive, industrial, white goods and commercial markets with end applications to include industrial motor control (forklifts, robotics, rotational gearing), electric motor position and sliding door/long-travel bi-directional sensing.
Allegro MicroSystems, LLC. announces a new dual converter for multiple output systems. Allegro’s AEC-Q100 qualified A8651 is a dual 2 A, low Vin, synchronous regulator with an adjustable frequency, integrated highside, P-channel MOSFET and a low-side, N-channel MOSFET. The A8651 incorporates current-mode control to provide simple compensation as well as excellent loop stability. The device utilizes external compensation to accommodate a wide range of power components to optimize for transient response without sacrificing stability.
Allegro MicroSystems, LLC introduces a new optimized Hall-effect sensing IC that provides a user-friendly solution for digital ring-magnet sensing, or when coupled with a magnet, ferromagnetic target sensing, in three-wire applications. The small device package can be simply assembled into applications for use in conjunction with a wide variety of target shapes and sizes. Allegro’s A1468 sensor IC is targeted at the automotive market and is designed and optimized for motor bike applications.
Allegro MicroSystems, LLC announces a new synchronous buck converter capable of delivering high current due to low Rdson internal switches. Allegro’s A8672 utilizes valley current mode control, allowing very short on-times to be achieved. This makes it ideal for applications that require very low output voltages, relative to the input voltage in combination with high switching frequencies. Typical applications include servers and networking systems that require 5 V or 12 V input step down conversions at high output current.
Allegro MicroSystems, LLC, a leader in developing, manufacturing and marketing high-performance semiconductors, today announced it was named a finalist in UBM Tech’s EE Times and EDN Annual Creativity in Electronics (ACE) Awards (http://ubm-ace.com) for their product innovation within the LEDs and Lighting category.
Allegro MicroSystems, LLC introduces the first digital current sensor IC targeted at server, telecom, and power monitoring current sensor IC applications within the industrial, consumer and computer markets. Allegro’s ACS764 fully integrated Hall-effect current sensor IC is designed for applications that require digital current sensing and reporting through an I²C™ bus.
Allegro MicroSystems, LLC introduces a unique addition to Allegro’s camshaft sensor family of products. As a single element, non-TPOS sensor it provides first falling edge detection, high running-mode edge accuracy, and direction/orientation insensitivity over the full operating range of air gap, speed, and temperature. Allegro’s ATS601LSG is a true zero-speed gear tooth sensor IC consisting of an optimized Hall IC and simple magnetic pellet configuration ideal for phased cam, start/stop engine applications. It can also be used for motorcycle, golf cart and industrial equipment applications. The
Allegro MicroSystems, LLC introduces a new linear, Hall-effect sensor IC specifically designed for applications that require medium accuracy in a very small package. Allegro’s A1304 is a factory trimmed one-time programmable (OTP-ROM) 3.3 V linear Hall-effect sensor integrated circuit that eliminates the need for customers to program the device to compensate for temperature effects on sensor performance. This new device has been specifically designed for both consumer and industrial markets, and consequently supports an industrial temperature range of -40 to 85°C.
Allegro MicroSystems, LLC introduces a new family of off-line PWM controllers that incorporate both a sense MOSFET and a current mode PWM controller IC. This new series is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan. The STR4A100 series is targeted at the appliance, office automation, consumer and industrial markets with key end applications to include audio visual, set top boxes, white goods and battery chargers.
Allegro MicroSystems, LLC announces a revolutionary unipolar, Hall-effect switch that is unlike any other competitive device on the market today. Allegro’s A1160 solution includes an integrated coil surrounding the Hall sensing element. During normal operation, the device functions as a typical unipolar switch (output turns on in the presence of south-pole magnetic field and turns off when the field is removed), but, when the diagnostics pin is pulled high, it enters diagnostics mode. This patented feature allows current to pass through the integrated coils, generating ~20 G of magnetic field.
Allegro MicroSystems, LLC adds to its extensive portfolio of low noise block regulators (LNBRs) designed for satellite receivers in Set Top Boxes and LCD TVs. Allegro’s “Generation 5” A8300 and A8300-1 are fully integrated linear and switching voltage regulators that are specifically designed to provide the power and the interface signals to an LNB down-converter via coaxial cable.
Allegro MicroSystems, LLC introduces a new product evaluation kit for their A4915 three-phase MOSFET controller IC to assist customers during the design process. With on-chip hall commutation and a unique SPEED control input, spinning a motor with Allegro’s A4915 couldn’t be easier. The SPEED input takes an analog voltage and generates pulse width modulated (PWM) output with variable duty cycle. This innovative control interface combined with on-chip hall commutation makes it possible to efficiently control a BLDC motor with little or no micro processing power. Allegro’s solution reduces PCB space by 75% over existing competitive solutions on the market today.
Allegro MicroSystems, LLC announces the release of three new switch mode power supplies. The C, HWB and SWF series have been designed with a user-configurability feature to prevent customers from replacing the entire set of power supplies making it much easier to change specifications. All three series are targeted at the telecommunications and medical markets. These new power supplies are offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan.
Allegro MicroSystems, LLC announces a new thermally enhanced, fully integrated, hall-effect-based, high precision linear current sensor IC to their existing portfolio. Allegro’s ACS770 device consists of a precision, low-offset linear Hall circuit with a copper conduction path located near the die. Applied current flowing through this copper conduction path generates a magnetic field which the Hall IC converts into a proportional voltage. This new device is targeted at the automotive, industrial and renewable energy markets.
Allegro MicroSystems, LLC announces a new DC-DC converter module series that is targeted at the telecommunications and consumer markets. The BR300 series is non-isolated step down type DC/DC converter module. The single module includes a control IC, inductor, ceramic capacitor, and standoff pins. This module provides a complete DC - DC converter solution, requiring few external components. This new series is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan.
Allegro MicroSystems, LLC introduces a new, flexible microstepping motor driver with a built in translator for easy operation. Allegro’s A4992 is a single chip solution designed to operate bipolar stepper motors in full, half, quarter and eighth step modes, at up to 28V. (up to 50V supply operation) . At power-on, the A4992 is configured to drive most small stepper motors with simple step and direction inputs. The A4992 includes stall detect features and advanced diagnostics that can be configured through the serial interface. This new device is targeted at the automotive and industrial markets with end applications to include automotive adaptive headlamp systems, idle bypass valve positioning, HVAC vent position systems, EGR valves and satellite, solar panel and CCTV positioning systems.
Allegro MicroSystems, LLC introduces a new, dual full-bridge driver designed to operate one bipolar stepper or two brush DC motors. Each full bridge uses DMOS power devices with integrated freewheeling diodes. Peak motor current can be limited providing higher efficiency and reduced motor heating. The A4990 includes diagnostic outputs and protection circuits for short circuits, open load, over-temperature and over-voltage and under-voltage lockout Allegro’s A4990 is targeted at both the automotive and industrial markets. Key automotive applications include HVAC actuators, EGR valves, and idle speed control. This device was also designed for harsh environments where stepper or DC actuators are needed for satellite dish or solar panel positioners.
Allegro MicroSystems, LLC announces the newest release in a family of single Low Noise Block Regulators (LNBRs) for satellite receiver applications. Allegro’s A8304 LNBR is a monolithic linear and switching voltage regulator, specifically designed to provide the power and the interface signals to an LNB down converter via coaxial cable.
Global electronic components distributor Digi-Key Corporation, the industry leader in electronic component selection, availability and delivery, today announced a global distribution agreement with Sanken Electric Co., a leading global supplier of analog power semiconductor products.
Allegro MicroSystems, LLC announces the release of a new high-voltage (600 V), BLDC MOSFET gate driver IC. This new device is designed for high voltage motor control for Hybrid, Electric Vehicle and 48 V automotive battery systems such as electronic power steering, A/C compressors, fans, pumps and blowers. The A4900 will also be offered in a non-automotive version for high voltage industrial and commercial applications.
Allegro MicroSystems, LLC announces the release of a new POL converter module series. The BR200 series are thin POL converter modules with an industry standard exterior shape and footprint that are responsive to very high speed loads and compatible with ceramic capacitors. These POL converter modules have been designed with higher efficiency, increased power density and are offered in a thinner package that most competitive solutions on the market today. This new series is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan.
Allegro MicroSystems, LLC announces a new programmable multi-output LED driver for LCD backlighting, instrument clusters, and daytime running lights. Allegro’s™ A8517 integrates a current-mode boost converter with internal power switch and 10 I²C programmable current sinks, and can provide 5,000:1 contrast ratio PWM dimming at 200Hz. The IC operates from 4.5 to 36 V, and is able to withstand up to 40 V load-dump conditions encountered in automotive systems.
Allegro MicroSystems, LLC announces a new adjustable frequency, high output current, PWM regulator that integrates a high-side, P-channel MOSFET and a low-side, N-channel MOSFET. Allegro’s A8650 incorporates current-mode control to provide simple compensation, excellent loop stability, and fast transient response. This robust device is targeted at the automotive market with end applications to include instrument clusters, HVAC, navigation, and audio systems.
Allegro MicroSystems, LLC adds two new factory one-time programmable (OTP-ROM) linear ICs to their existing portfolio. These devices eliminate the need for customers to optimize/program the devices for their finished sensor assemblies. Allegro’s A1388 and A1389 architecturally have the ability to support a magnetic input sensitivity range of 2.0 to 4.0 mV/G, and 4.0 to 9.0 mV/G, respectively. However, the A1388 and A1389 devices initially being released to market are factory programmed to specific magnetic input sensitivity levels.
Allegro MicroSystems, LLC introduces a new three-phase MOSFET controller IC that is designed for pulse width modulated (PWM) current control of three-phase brushless DC motors. The A4915 is capable of high current gate drive for 6 all N-channel power MOSFETs. An internal charge pump ensures gate drive down to 7 V supply and provides limited gate drive down to 5 V. A bootstrap capacitor is used to generate a supply voltage greater than the source voltage of the high side MOSFET, a requirement for N-channel MOSFETs. This new device is targeted at both the industrial and consumer markets with end applications to include power tools, lawn and garden equipment, pumps, and household appliances.
Allegro MicroSystems, LLC introduces a new buck regulator that offers significant flexibility in input voltage (4 to 40V), switching frequency (250kHz to 2.4MHz), and output current (up to 2.5A). Designed to provide the power supply requirements of next generation car audio and infotainment systems, Allegro’s A8580 provides the control and protection circuitry to produce a high current regulator with ±1.0% output voltage accuracy.
Allegro MicroSystems, LLC introduces two new factory one-time programmable (OTP-ROM) linears which eliminate the need for customers to optimize/program the devices for their finished sensor assemblies. Allegro’s A1318 and A1319 devices are targeted towards 3.3 V supply rail applications. These new devices architecturally have the ability to support a magnetic input sensitivity range of 1.32 to 2.64 mV/G, and 2.64 to 5.94 mV/G, respectively. However, the A1318/19 devices initially being released to market are factory programmed to specific magnetic input sensitivity levels.
Allegro MicroSystems, LLC announces a new dual half bridge motor driver, designed for low cost, low voltage battery operated applications. This device offers features such as Thermal Shut-down (TSD) and sleep functionality in a small package that is competitive with equivalent discrete circuits. Allegro’s A3910 is targeted at the consumer market with end applications to include game controllers and home entertainment applications.
Allegro MicroSystems, Inc. announces a new addition to their existing automotive qualified LED driver IC family. The new A6263 is a linear, programmable current regulator providing up to 100 mA from each of four outputs to drive arrays of high brightness LEDs. It is targeted at the automotive market with end applications to include map and dome lighting as well as exterior accent lighting.
Allegro MicroSystems, Inc. announces the addition of a new LED driver IC to complement their existing automotive qualified LED driver IC portfolio. Allegro’s A6269 is a linear, programmable current regulator providing up to 200 mA from each of two outputs to drive arrays of high brightness LEDs. This device is designed for the automotive market with end interior lighting applications to include: map and dome lighting, glove box, vanity mirror, door (puddle lamp) and trunk lights.
Allegro MicroSystems, Inc. introduces a revolutionary new package offering for Allegro’s current sensor IC family of devices. Allegro’s smallest current sensor linear IC, the ACS711, is now housed in a 0.75 mm thick low profile QFN package measuring only 3 mm x 3 mm. This new micro sized device is possibly the smallest fully integrated linear current sensor IC in the world! With only a 0.6 mΩ internal resistance, this package can really take the heat. With proper PCB design, the device can be used for applications with over 30 A continuous current while reducing power consumption by an order of magnitude over existing sense resistor op-amp solutions.
Allegro MicroSystems, Inc. announces a new dual-channel, Hall-effect direction detection sensor IC, providing various digital output signals that indicate speed and direction of a target rotation. The Hall elements are photolithographically aligned to better than 1 μm. Maintaining accurate mechanical location between the two active Hall elements eliminates the major manufacturing hurdle encountered in fine-pitch detection applications. The A1233 is a highly sensitive, temperature stable magnetic sensing device ideal for use in ring magnet based, speed and direction systems located in harsh automotive and industrial environments.
Allegro MicroSystems, Inc. introduces a new dual analog/PWM output, one-time programmable, linear IC which allows the user to optimize the device in a finished sensor assembly. Allegro’s A1359 linear IC provides a dual tracking output, where the PWM output tracks the analog output to within a +/-3% mismatch. New applications for linear output Hall Effect sensors, such as displacement and angular position require high accuracy in conjunction with redundant outputs. Allegro’s new programmable linear device has been designed specifically to achieve both goals.
Allegro MicroSystems, Inc. adds a new AEC-Q100 qualified device to their existing automotive LED driver portfolio. The A6213 is a single IC, DC-DC, buck switching regulator that provides a constant-current output of up to 3 A to drive high-power LEDs. It integrates a high-side, N-channel, MOSFET switch and includes many new significant advantages in fault protection. This new device features a true automotive design and was developed to target many applications within this market such as map lights, DRL daytime running lights, rear fog lamps, fog lights, cargo and underhood lamps as well as puddle and emergency lights.
Allegro announces a new field-programmable, unipolar Hall-effect switch designed for use in high-temperature applications. The A1128 device uses a chopper-stabilization technique to eliminate offset inherent in single-element devices. Allegro’s new device has an advanced programming algorithm to simplify the customer’s end-of-line process. It also has a higher programming resolution for tighter magnetic switch points. It is targeted at the automotive and industrial markets.
Allegro MicroSystems, Inc. adds several new devices to their existing Inverter Power Module (IPM) portfolio. The SCM1240M family provides a robust, highly-integrated solution for optimally controlling three-phase motor power inverter systems and variable speed control systems. These devices were designed to conserve energy when driving the motors of both residential and commercial appliances. This new series is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan.
Allegro MicroSystems, Inc. introduces the STR2W100 and STR3A100 power IC series designed for switching power supplies. These new devices incorporate a power MOSFET and a current mode PWM controller IC in one package. Each package includes a startup circuit and a standby function in the controller, which achieves low power consumption, low standby power, and high cost-effectiveness in power supply systems, while reducing external components. These devices are offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan.
Allegro MicroSystems, Inc. announces the release of a new, highly-integrated power management IC that is designed to provide the power supply requirements of next generation car audio and infotainment systems. Allegro’s A8600 device provides all the control and protection circuitry needed to produce four high current regulators each with 1.5% accuracy.
Allegro MicroSystems, Inc. introduces three new automotive power management ICs that use an internal 2.2 MHz constant on-time buck pre-regulator to supply regulated outputs commonly used in automotive CAN and microprocessor controlled applications. These new devices are targeted at the automotive market for bias supplies within control units for functions such as electronic power steering, transmission control, antilock braking and emissions control.
Allegro MicroSystems, Inc, announces a new full-bridge MOSFET controller for use with external N-channel power MOSFETs. The A4957 is designed for applications with high-power brush DC motors. It has a wide supply voltage range of 7 V to 50 V. This new device is targeted for commercial and industrial applications such as portable power tools, lawn and garden equipment, industrial blowers, lifts and conveyors, and forklifts.
Allegro MicroSystems, Inc. announces the release of a new simple and efficient family of LED driver ICs that can be configured as buck or buck-boost voltage converters. The LC5220D/S LED series is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan. This new series is targeted at the consumer market with end applications to include LED lighting fixtures and LED light bulbs.
Allegro MicroSystems, Inc., a leader in developing, manufacturing and marketing high-performance semiconductors, and United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) ("UMC"), a leading global semiconductor foundry, today announced a strategic agreement between the two companies for Allegro to utilize UMC for foundry technology and manufacturing.
Allegro MicroSystems, Inc. announces the release of a new switching buck regulator LED driver that provides constant-current output to drive high-power LEDs. With a wide input supply voltage from 6 to 48 V, Allegro’s A6211 device integrates a high-side N-channel MOSFET switch for DC-to-DC stepdown (buck) conversion. A true average current is output using a cycle-by-cycle, controlled on-time method. This new device has significant fault protection advantages including design techniques to address pin-pin shorts, pin-ground shorts and open and shorted external components. It was designed for the consumer, industrial, and architectural lighting markets in addition to light bars for scanners and multifunction printers.
Allegro MicroSystems, Inc. announces a new full-bridge DC motor driver capable of continuous output currents of 1 A and operating voltages from 2.5 to 9 V. Allegro’s A3918 is a new addition to the low voltage family of motor drivers which provides a single full-bridge option to complement the dual full bridge capability found in Allegro’s existing family of devices. Features such as internal PWM current reference allows the user to select the peak chop current with a resistor only. The single supply and simple logic interface makes this an ideal product for single cell Li-ion applications.
Allegro MicroSystems, Inc. adds a new DC-DC converter controller to their existing line of automotive LED lighting drivers. This new LED driver IC provides a programmable constant current output for driving high power LEDs in series. Allegro’s A6268 is targeted at both the automotive and industrial markets with end applications to include LED Headlights, Daytime Running Lights (DRL), Fog Lights and other high power LED applications.
Allegro MicroSystems, Inc. introduces an automotive version of their existing A4950 full-bridge motor driver IC. Allegro’s A4950 was designed for pulse width modulated (PWM) control of DC motors and is now capable of peak output currents to ±3.5 A and operating voltages to 40 V. These design updates were implemented to accommodate high ambient operating temperature applications within the automotive market. The new device is tested across extended temperature and voltage ranges to ensure compliance in both automotive and industrial applications.
Allegro MicroSystems, Inc. announces a new three phase brushless DC motor driver IC with BEMF sensing for commutation control. Allegro’s A4942 device has a maximum operating voltage is 16 V at up to 1.45 A. This new fan driver is targeted at the industrial and office automation markets and was designed for fan and blower applications.
Allegro MicroSystems, Inc. announces a new integrated power IC that is designed to supply the motor driver and power supply requirements for office automation such as printers and scanners as well as industrial applications. Allegro’s A3998 incorporates two high current, high performance, DMOS full-bridge outputs that are capable of 1.5 A at 50 V. Additionally, two power supply rails are provided for microprocessor or DSP supplies. A switching buck regulator steps the supply down to an adjustable low voltage output from 3.3 to 5 V. This voltage can be used to supply external 3.3 V or 5 V rails and also feeds back into the part supplying the adjustable, integrated linear regulator from 1 V to 2.5 V.
Allegro MicroSystems, Inc. announces a new current sensor IC that provides an economical and precise solution for AC or DC current sensing in 3.3 V supply applications. This new device is targeted at the automotive and industrial markets. Typical applications include motor control, load detection and management, power supply and DC-to-DC converter control, inverter control, and overcurrent fault detection.
Allegro MicroSystems, Inc. announces a new programmable stepper motor driver IC with improved programmability and diagnostics. The A4979 is a flexible microstepping motor driver with built-in translator for easy operation. It is a single-chip solution, designed to operate bipolar stepper motors in full-, half-, quarter- and sixteenth-step modes, at up to 50 V and 1.5 A. This new device is targeted at the office automation, industrial and consumer markets.
Allegro MicroSystems, Inc. announces a fixed frequency, multiple-output supply for LCD display bias. The A8601 is Automotive Grade AEC Q-100 qualified and targets infotainment applications. It has a rich feature set that includes five regulated outputs from one low-voltage supply. The device was designed to address the need for a robust, automotive solution that uses fewer components than existing solutions, while providing higher efficiency power conversions.
Allegro MicroSystems announces the release of a new bipolar switch designed with a high speed chopping circuit to null out offsets and dramatically improve switching repeatability. Allegro’s A1250 is an extremely temperature-stable and stress-resistant Hall-effect, bipolar switch. This device is especially suited for operation over extended temperature ranges to +150 °C. Superior high temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally resulting from device overmolding, temperature dependencies, and thermal stress. This new device is targeted at the automotive, industrial and consumer markets.
Allegro MicroSystems, Inc. expands their family of Low Noise Block Regulators (LNBRs) designed for satellite receivers in Set Top Boxes and LCD TVs. Allegro’s A8303 is a single channel LNBR that utilizes small ceramic capacitors (instead of electrolytic) within the boost regulator control. The end result is a lower-profile solution that is a key requirement in LCD TV designs. Furthermore, the device can provide a key output voltage setting (15.6 V) to accommodate Japan-specific design requirements.
Allegro MicroSystems, Inc. introduces the LC5540LD/LF single stage power factor corrected off-line LED driver IC series which is manufactured and developed by Sanken Electric Co., Ltd. in Japan. The robust functions within these single stage converters have been developed to simplify system designs. This new series is targeted at the consumer and industrial markets targeting indoor and outdoor LED lighting and off-line LED lighting applications.
Allegro MicroSystems, Inc. announces an open loop Hall-effect sensor IC with near closed loop performance (in accuracy and bandwidth). Allegro's ACS716 current sensor IC provides an economical and precise means for current sensing applications in industrial, commercial, and communications systems. The device is offered in a small footprint surface mount package that allows easy implementation in customer applications, and is optimized for 3.3 V supply operation.
Allegro MicroSystems, Inc. introduces a new motor driver IC designed to drive one winding of a bipolar stepper motor in a microstepping mode. The outputs of Allegro’s A4975 are rated for continuous output currents to ±1.5 A and operating voltages to 50 V. Internal pulse width modulated (PWM) current control combined with an internal three-bit nonlinear digital-to-analog converter allows the motor current to be controlled in full-, half-, quarter-, or eighth-step (microstepping) modes. Nonlinear increments minimize the number of control lines necessary for microstepping. Microstepping provides increased step resolution, and reduces torque variations and resonance problems at low speed. This new device is targeted at the office automation and industrial markets with specific end applications to include printers, scanners and copiers. Internal
Allegro MicroSystems, Inc. announces a new series of off-line, quasi-resonant switching regulators. This new series was developed to eliminate the requirement of a dedicated power supply to the standby circuits, by reducing the input power requirement at no load to 30 mW or less for 100 VAC input and to 50 mW or less for 230 VAC. This is about one-third the requirement of conventional quasi-resonant ICs and is the lowest power consumption available on the market today.
Allegro MicroSystems, Inc. announces a robust, dual –channel low-noise block (LNB) regulator with an adjustable current limit and improved diagnostics requiring minimal supply current. Intended for analog and digital satellite receivers, this dual low noise block converter regulator (LNBR) is a monolithic linear and switching voltage regulator, specifically designed to provide the power and the interface signals to an LNB down converter via coaxial cable.
Allegro announces a new full-bridge motor driver IC that is designed for bidirectional pulse width modulated (PWM) current control of inductive loads and is capable of continuous output currents to ±1.5 A and operating voltages to 50 V. Allegro’s A4973 has an internal fixed off-time PWM current-control circuitry that can be used to regulate the maximum load current to a desired value. The peak load current limit is set by the user’s selection of an input reference voltage and external sensing resistor. The fixed off-time pulse duration is set by a user-selected external RC timing network. Internal circuit protection includes thermal shutdown with hysteresis, transient suppression diodes, and crossover current protection. Special power-up sequencing is not required.
Allegro MicroSystems, Inc. introduces a new single-output white LED (WLED) driver designed for backlighting LCD displays for both automotive and consumer designs and the associated application, performance and protection requirements. Allegro’s A8513 integrates a current-mode boost converter with an internal power switch and one current sink. It is a robust solution for applications such as automotive infotainment, cluster, and center-stack, industrial LCD displays, portable DVD players, flatbed scanners, and LED lighting.
Allegro MicroSystems, Inc. announces the release of a new dual, full-bridge PWM motor driver IC targeted at the office automation, automotive, industrial and consumer markets. Allegro’s A4970 motor driver IC utilizes a DMOS output technology that drives both windings of a bipolar stepper motor or bidirectionally controls two DC motors. Both bridges are capable of sustaining 45 V and include internal pulse-width modulation (PWM) control of the output current to 750 mA.
Allegro MicroSystems, Inc. introduces a new linear Hall-effect sensor IC with a wide ambient temperature range of 40°C to 150°C. Allegro’s A1357 device is a high precision, customer programmable, Hall-effect linear IC with a pulse width modulated (PWM), current sourced (2-wire) output. The duty cycle (DC) of the PWM output signal (freq: 1 kHz) is proportional to an applied magnetic field. The device converts an analog signal from its internal Hall sensor element to a digitally encoded PWM output signal. The coupled noise immunity of the digitally encoded PWM output is far superior to the noise immunity of an analog output signal.
Allegro MicroSystems, Inc. introduces the next-generation devices in a family of single and dual LNB supply and control voltage regulators designed for satellite receivers in Set Top Boxes and LCD TVs. These single and dual low noise block converter regulators (LNBR) are fully integrated linear and switching voltage regulators, specifically designed to provide the power and the interface signals to an LNB down converter via coaxial cable.
Allegro MicroSystems, Inc. announces a new, two-wire, Hall-effect latch that is programmed at the factory to optimize the magnetic switch point accuracy. The A1244 Hall-effect latch uses the same patented high frequency, 4-phase, chopper-stabilization technique that is used on complementary devices in this family (unipolar switches). Allegro’s advanced BiCMOS wafer fabrication process is used to achieve magnetic stability over temperature and to eliminate offset inherent in single-element devices, when exposed to harsh-application environments.
Allegro introduces a new three-phase, sensorless, brushless DC (BLDC) motor controller for use with external N-channel power MOSFETs that is designed for various pump, blower and cooling fan automotive applications. The motor is driven using block commutation (trapezoidal drive) where phase commutation is determined, without the need for independent position sensors, by monitoring the motor back-emf. A programmable motor start-up scheme allows the Allegro A4960 to be adjusted for a wide range of motor and load combinations.
Allegro MicroSystems, Inc. announces the release of a new family of automotive-grade, high-current LED driver ICs with extensive diagnostics and protection features. The A6265, A6266 and A6267 are DC-DC converter controllers, with the A6265/A6267 configurable as either boost or buck-boost and the A6266 in boost only. All provide a programmable constant current output for driving high power LEDs in series, ensuring identical currents and uniform brightness. The devices are capable of driving up to 15 LEDs at currents of 1 A or higher based on the external logic-level MOSFET. These devices are targeted for automotive and industrial LED driver applications, in particular exterior front and rear automotive lighting.
Allegro MicroSystems, Inc. adds a new low side MOSFET pre-driver IC to complement their existing automotive pre-driver portfolio.
Allegro’s A4952 and A4953 are designed for use in brush DC motor drive applications and are rated for peak output currents to ±2 A, and operating voltages to 40 V. Input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals. Both devices feature internal fixed off-time PWM where the maximum current can be adjusted by the user’s selection of an optional sense resistor and the voltage applied to a VREF pin.
Allegro announces a new automotive grade three phase MOSFET pre-driver IC targeted at BLDC motors commonly found in electronic power steering systems, engine cooling fans, transmission actuators and hydraulic pumps.
Allegro MicroSystems, Inc. announces two new multi-output LED drivers for LCD backlighting. The A8502 and A8514 integrate a current-mode boost converter with internal power switch and multiple current sinks.
Allegro MicroSystems, Inc. announces a new unipolar two-phase constant-current mode motor driver IC which is manufactured and developed by Sanken Electric Co., Ltd. in Japan.
Allegro MicroSystems, Inc. introduces a new fully integrated single full-bridge DMOS motor driver IC with over-current protection (OCP), internal adjustable pulse-width-modulation (PWM), and a fully integrated charge pump.
Allegro MicroSystems, Inc. announces two new robust automotive grade buck regulators with high switching frequency and output current, each integrating a low resistance, high-side, N-channel MOSFET.
Allegro MicroSystems, Inc. announces a complete three phase brushless DC motor pre-driver with outputs for direct high current gate drive of an all N-channel power MOSFET three phase bridge with a maximum supply voltage of 38 V.
Allegro MicroSystems, Inc. introduces two new flexible microstepping motor drivers each with a built-in translator for easy operation.
Allegro MicroSystems, Inc. announces a new dual DMOS full bridge motor driver IC targeted at the office automation and consumer and industrial markets.
Allegro MicroSystems, Inc. announces a new three-phase, sensorless, brushless DC motor driver IC to complement their existing family of brushless DC devices.
Allegro MicroSystems, Inc. introduces a new line of user-programmable, two-wire, unipolar, Hall-effect switches to complement its existing family of devices used in seat belt buckle, seat position, and shift selector (PRNDL) applications.
Allegro MicroSystems, Inc. introduces a new line of two-wire, unipolar, Hall-effect switches to complement its existing family of devices used in seat belt buckle, seat position, and steering lock applications.
Allegro MicroSystems, Inc. introduces a new user-programmable linear Hall-effect sensor IC with pulse width modulated output. The A1356 complements Allegro’s existing line of linear devices with PWM outputs by offering a device with significantly higher carrier frequency of 2 kHz.
Allegro MicroSytems, LLC introduces a new Hall-effect linear current sensor IC that provides economical and precise solutions for AC or DC current sensing in low-voltage audio, communications systems, white goods, and automotive applications.
Allegro MicroSystems, Inc. announces a new high voltage three-phase motor driver family in a small package that minimizes board space and expands the use of inverter technology (variable speed control) in low power motor drivers.
Allegro MicroSystems, Inc. introduces a new multi-output white LED driver for LCD backlighting in consumer and industrial displays. Allegro’s new A8515 device has advanced protection features to provide optimized viewing.
Allegro’s new A4941 offers sensorless commutation, a wide supply voltage range, 1.25 A peak output current, -40°C to 105°C operating temperature range, lock detection with auto restart, and a small eTSSOP package with soft switching for reduced audible noise.
Allegro MicroSystems, Inc. announces a new family of constant current LED drivers designed to address the emerging requirements of the internal and external illumination applications within the automotive market.
Allegro MicroSystems, Inc. announces a new dual-phase DCM interleaved PFC controller IC targeted at the telecom, server, home appliance and industrial markets.
Allegro MicroSystems, Inc. introduces a new low-current BiCMOS photoelectric smoke detector circuit with ultra-low standby current allowing an average 10-year battery life.
Allegro’s A4986/A4987 devices are dual DMOS full-bridge stepper motor drivers with parallel input communication and overcurrent protection.
Allegro MicroSystems, Inc. has introduced a new three-phase brushless DC motor pre-driver with outputs for direct high current gate drive of an all N-channel power MOSFET three phase bridge with a maximum supply voltage of 38 V.
Allegro MicroSystems, Inc. announces a new dual-channel, bipolar switch with two Hall-effect sensing elements, each providing a separate digital output for speed and direction signal processing capability.
Allegro MicroSystems, Inc. announces a new multi-output WLED/RGB driver for LED backlighting of LCD Monitors and Televisions. This new device integrates a boost controller that operates in constant frequency (programmable) current mode control, driving an external MOSFET. It integrates six internal current-sinks capable of up to 80 mA each, and they can be combined together to achieve even higher currents.
Allegro MicroSystems, Inc. announces the expansion of their microstepping motor driver line to include four new devices that require fewer external components and utilize a simple STEP and Direction interface.
At a ceremony today, representatives of the Toxics Use Reduction Act (TURA) Program and state legislators presented Allegro MicroSystems, Inc. with an award to acknowledge the company’s environmental leadership.
Allegro MicroSystems, Inc. adds several new devices to their existing line of Hall-effect latches. The A1225/A1227 and A1229 devices are extremely temperature-stable and stress resistant sensor ICs especially suited for operation over extended temperature ranges to 150°C.
Allegro MicroSystems, Inc. announces two new Xenon photoflash charger ICs with robust features in an extremely small footprint.
Allegro MicroSystems, Inc. introduces a new high power LED driver with output disconnect for backlighting medium LCD displays. This new driver is a robust solution targeting numerous applications within the automotive market.
