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ACS770KCB

Part Number	ACS770KCB
Manufacturer	Allegro MicroSystems
Description	High Precision Linear Current Sensor
Published	Dec 26, 2014
Detailed Description	ACS770xCB Thermally Enhanced, Fully Integrated, Hall-Effect-Based High-Precision Linear Current Sensor IC with 100 µΩ Cu...
Datasheet	ACS770KCB PDF File

Overview

ACS770xCB Thermally Enhanced, Fully Integrated, Hall-Effect-Based High-Precision Linear Current Sensor IC with 100 µΩ Current Conductor FEATURES AND BENEFITS • Industry-leading total output accuracy achieved with new piecewise linear digital temperature compensation of offset and sensitivity • Industry-leading noise performance through proprietary amplifier and filter design techniques • 120 kHz typical bandwidth • 4.
1 µs output rise time in response to step input current • Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt signals, and prevents offset drift in high-side, high-voltage applications • Greatly improved total output error through digitally programmed and compensated gain and offset over the full operating temperature range • Small package size, with easy mounting capability • Monolithic Hall IC for high reliability • Ultralow power loss: 100 µΩ internal conductor resistance • Galvanic isolation allows use in economical, high-side current sensing in high-voltage systems • 4.
5 to 5.
5 V, single supply operation • Output voltage proportional to AC or DC currents • Factory-trimmed for accuracy • Extremely stable output offset voltage Continued on the next page… PACKAGE: 5-pin package (suffix CB) DESCRIPTION The Allegro™ ACS770 family of current sensor ICs provides economical and precise solutions forAC or DC current sensing.
Typical applications include motor control, load detection and management, power supply and DC-to-DC converter control, inverter control, and overcurrent fault detection.
The device consists of a precision, low-offset linear Hall circuit with a copper conduction path located near the die.
Applied current flowing through this copper conduction path generates a magnetic field that is concentrated by a low magnetic hysteresis core, then converted by the Hall IC into a proportional voltage.
Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transduc...

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ACS770KCB High Precision Linear Current Sensor - Allegro MicroSystems

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