HVAC Systems

Improve fuel efficiency and cabin comfort with Allegro’s advanced motor control solutions, including bipolar stepper drivers for flap control and MOSFET gate drivers for high-power HVAC blowers.

HVAC Systems and Pumps
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    Defroster - Current Sensors

    A4960 - Automotive Sensorless BLDC Controller with Integrated Gate Drive and Diagnostics

    A4964 - Automotive Sensorless Sinusoidal BLDC Controller with LIN Interface and Diagnostics

    A4911 - Automotive Three-Phase MOSFET Driver with ASIL Compliance, Diagnostics, and Current Sensing

    A4939 - Automotive Three-Phase MOSFET Driver with Integrated Fault Protection and 50V Operation

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    Air Conditioner - Current Sensors

    ACS71240 - Automotive Current Sensor IC with Fast Overcurrent Fault and Common-Mode Rejection

    ACS72981 - High-Precision Current Sensor IC with 200µΩ Conductor for Automotive Applications

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    Heater - Current Sensors

    ACS724 - High-Accuracy, Isolated Current Sensor with Differential Sensing

    ACS725 - High-Accuracy, Isolated Current Sensor with Differential Sensing

    ACS71240 - Automotive Current Sensor IC with Fast Overcurrent Fault and Common-Mode Rejection

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    Position Sensors

    ACS724 - High-Accuracy, Isolated Current Sensor with Differential Sensing

    ACS725 - High-Accuracy, Isolated Current Sensor with Differential Sensing

    ACS71240 - Automotive Current Sensor IC with Fast Overcurrent Fault and Common-Mode Rejection

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    Position Sensors

    ACS71240 - Automotive Current Sensor IC with Fast Overcurrent Fault and Common-Mode Rejection

    ACS72981 - High-Precision Current Sensor IC with 200µΩ Conductor for Automotive Applications

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    1 and 3-Phase Drivers and MOSFET Pre-Driver ICs

    A8660 - Wide Input Voltage Synchronous Buck Controller with Programmable Frequency and NPOR

    A8587 - Wide Input Voltage, 2A Adjustable Buck Regulator with Enable and NPOR

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    Position Sensors

    AMT49700 - Automotive Stepper Motor Driver with Programmable Motion Control and Integrated Current Sensing

    A4980 - Programmable Stepper Driver with SPI Control

    A4993 - Automotive Microstepping Stepper Driver with SPI Control and Diagnostics

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    DC/DC Regulators

    A4955 - Full-Bridge PWM Gate Driver for N-Channel MOSFETs

    A3922 - Automotive Full-Bridge MOSFET Driver with SPI Control and Diagnostics

    ARG81800 - 40V, 1A Synchronous Buck Regulator with Ultralow Quiescent Current

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    Three-Wire Hall-Effect Switches

    APS11205 - High-Temperature Hall-Effect Switch for Low-Voltage Automotive Applications

    APS11000, APS11060 - Automotive-Grade Planar and Vertical Hall-Effect Switches with Enhanced Protection

    APS12625, APS12626 - 2D Hall-Effect Speed and Direction Sensor ICs with Functional Safety

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    Three-Wire Hall-Effect Switches

    APS11205 - High-Temperature Hall-Effect Switch for Low-Voltage Automotive Applications

    APS11000, APS11060 - Automotive-Grade Planar and Vertical Hall-Effect Switches with Enhanced Protection

    APS12625, APS12626 - 2D Hall-Effect Speed and Direction Sensor ICs with Functional Safety

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    Current Sensors

    APS122x0 - High-Temperature Precision Hall-Effect Latches for Automotive Applications

    APS12400 - Two-Wire Hall-Effect Latch with Diagnostics and Functional Safety

    APS12450 - Three-Wire Hall-Effect Latch with Advanced Diagnostics and Functional Safety

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Featured Products

Allegro EX 12 Package

ACS71240

Automotive-Grade, Galvanically Isolated Current Sensor IC
A4955, A4956, A5957 Full Bridge PWM Driver Gate and Gate Driver Packaging Image

A4955

Designed for pulse-width-modulated (PWM) control of DC motors, the A4955 is capable of 50 V operation and provides gate drive for an all n-channel external MOSFET bridge.
APS122x5 Product Image

APS12205, APS12215, APS12235

High-Temperature Hall-Effect Latches for Low-Voltage Automotive Applications
A8660

A8660

Wide Input Voltage, Adjustable Output, Synchronous Buck Controller with PWM Frequency Dithering, Synchronization, and NPOR