Quality Standards and Environmental Certifications

50 to 400 A Current Sensor ICs with Integrated Conductor

Allegro drives innovation in the current sensor industry with a history of first-to-market products that give our customers a competitive edge. Did you know we invented the 100uOhm CB package with high isolation for sensing up to 400Amps? It offers world leading efficiency and power density.

Our high current sensor IC packages are fully integrated solutions that also provide high accuracy and reliability. These sensors are automotive-grade devices that can take the heat and deliver highly accurate open-loop current sensing in the harshest applications environments.

Featured Products

ACS72981 Product Image

ACS72981

The Allegro ACS72981 has a 250 kHz bandwidth analog output with a <2 µs response time. This response enables overcurrent fault detection in safety-critical applications and makes it ideal for motor control, load detection and management, power supply and DC-to-DC converter control, as well as ...

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ACS772 Product Images

ACS772

The ACS772 is an automotive grade, 200KHz Bandwidth Current Sensor IC in Allegro’s priority CB package. It offers a wide current sensing range (50A to 400A) and very low power loss achieved by the 100 μΩ internal resistance of its conductive path.

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ACS773 Product Image

ACS773

The ACS773 is an automotive grade, 200KHz Bandwidth Current Sensor IC in Allegro’s priority CB package. It offers a wide current sensing range (50A to 400A) and very low power loss achieved by the 100 μΩ internal resistance of its conductive path.

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Current Sensor IC 50 to 400 A Selection Guide

Current Sensors

An Effective Method for Characterizing System Bandwidth in Complex Current Sensor Applications

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.

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Current Sensors

Achieving Closed-Loop Accuracy in Open-Loop Current Sensors

Closed-loop current sensing technology is employed in many industrial and automotive applications for accurate current sensing. By employing proprietary packaging techniques and advanced integrated algorithms in a single monolithic, fully integrated current sensor IC, Allegro MicroSystems, LLC has ...

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News

New Automotive Grade Current Sensor IC Improves Safety and Efficiency, Reduces BOM

Apr 09, 2019

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 ...

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Semiconductors (general)

Allegro Product Selection Guide

Sense. Regulate. Drive. Check out our device offerings and packages across all of our product families in this PDF selection guide.

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