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Our family of fully integrated, high-isolation current sensor solutions provides accurate measurement with very low resistance—all without the need for external isolation components.
Our proprietary packaging uses flip-chip technology which generates excellent magnetic coupling in a coreless package design. Our solutions also provide up to 4800 VRMS galvanic isolation. These low-profile, small form factor packages are ideal for reducing PCB area over sense resistor op-amp or bulky current transformer configurations.
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January 25, 2024
Modern cars have become increasingly power hungry. Even the “least electrified” vehicles include advanced electronics for infotainment, safety, and engine control. Fully electric vehicles further add high-voltage power domains to charge and drive. Each of these systems shares the need for power ...Learn More
This application note describes multiple methods for measuring and characterizing system bandwidth, with a focus on the impulse response method. Allegro’s ACS720 is the perfect device to validate the test methods outlined here.Learn More
Closed-loop current sensing technology is employed in many industrial and automotive applications for accurate current sensing. Allegro MicroSystems has developed magnetic-based current sensor IC solutions that achieve near closed-loop accuracy using an open-loop topology.Learn More
May 02, 2022
AN296100: Allegro current sensor ICs allow design engineers to use Hall-effect based current sensor ICs in new applications where increased energy efficiency or new operating features are required. Wherever current sensing is needed, an integrated Hall-effect IC can provide a solution.Learn More
AN269122 - Allegro Microsystems offers a broad product family of current sensor IC solutions with integrated conductors. For applications with normal operating currents up to 50 A, Allegro offers current sensor ICs in a number of standard surface-mount packages, such as SOIC-8, SOICW-16, QSOP-24, ...Learn More
This paper presents recent advances in integrated Hall-effect–based current sensor ICs. It covers the various packaging concepts for integrating the primary current path into the system, the major improvements in IC parameters.Learn More
The highly compact Hall effect current sensor ICs without concentrators that are now available make it possible to enhance performance of small-current differentiation by simple layout steps and shielding the device from extraneous magnetic flux along its primary sensing axis.Learn More
This application note will describe the use of the new high current ACS772 Hall-effect current sensor integrated circuit (IC) from Allegro MicroSystems and will give an overview of its features and improvements from previous Allegro high-current sensors.Learn More
This application note describes simple methods for increasing the measurable current range. These methods involve splitting the path of the current being sensed. Various options of devices and circuits are described.Learn More
AN296154 - This application note describes the use of the new highly isolated, high bandwidth ACS733 Hall-effect current sensor integrated circuit (IC) from Allegro MicroSystems and gives an overview of its features and advantages over a highspeed current transformer (CT) current sensing solution.Learn More
Allegro MicroSystems has been driving innovation in the current sensor industry for more than 17 years, with a history of first-to-market products that give our customers a competitive edge. Our advanced ICs help you achieve higher efficiency and power density in your designs.Learn More