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ACS725

Allegro MicroSystems
Part Number ACS725
Manufacturer Allegro MicroSystems
Description Galvanically Isolated Current Sensor
Published Apr 4, 2015
Detailed Description ACS725 Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection in a Small Footprint ...
Datasheet PDF File ACS725 PDF File

ACS725
ACS725

Overview
ACS725 Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection in a Small Footprint SOIC8 Package FEATURES AND BENEFITS • AEC-Q100 qualified • Differential Hall sensing rejects common-mode fields • 1.
2 mΩ primary conductor resistance for low power loss and high inrush current withstand capability • Integrated shield virtually eliminates capacitive coupling from current conductor to die, greatly suppressing output noise due to high dv/dt transients • Industry-leading noise performance with greatly improved bandwidth through proprietary amplifier and filter design techniques • High-bandwidth 120 kHz analog output for faster response times in control applications • Filter pin allows user to filter the output for improved resolution at lower bandwidth • Patented integrated digital temperature compensation circuitry allows for near closed loop accuracy over temperature in an open-loop sensor • Small footprint, low-profile SOIC8 package suitable for space-constrained applications • Filter pin simplifies bandwidth limiting for better resolution at lower frequencies Continued on the next page… TÜV America Certificate Number: U8V 18 02 54214 041 CB 14 11 54214 031 CB Certificate Number: US-32848-UL PACKAGE: 8-Pin SOIC (suffix LC) Not to scale DESCRIPTION The Allegro™ ACS725 current sensor IC is an economical and precise solution for AC or DC current sensing in industrial, automotive, commercial, and communications systems.
The small package is ideal for space-constrained applications while also saving costs due to reduced board area.
Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die.
Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC...


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