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ACS720 Datasheet Current Sensor

Manufacturer: Allegro MicroSystems

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General Description

The ACS720 is a 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.

One of the key benefits of the ACS720 is to provide high isolation with a reduced bill of materials made possible by the proprietary IC SOIC16W package.

The ACS720 works off of a single 5 V supply while maintaining an output voltage swing from 0 to 3 V, with a stable zero current output of 1.5 V.

Overview

ACS720 High Accuracy, Dual Fault, Galvanically Isolated Current Sensor in SOIC16 Wide-Body.

Key Features

  • Differential current sensing cancels common mode fields, simplifying PCB layout.
  • Two user-settable faults for fast short-circuit protection and slower overcurrent detection.
  • Industry-leading noise performance with greatly improved bandwidth through proprietary amplifier and filter design techniques.
  • Patented integrated digital temperature compensation circuitry allows high accuracy over temperature in an open loop sensor.
  • 1.0 mΩ primary conductor re.

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