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ACS70311

Allegro
Part Number ACS70311
Manufacturer Allegro
Description Programmable Linear Hall-Effect Sensor
Published Nov 26, 2020
Detailed Description ACS70310 and ACS70311 Very High Precision, Programmable Linear Hall-Effect Sensor IC with Reverse Battery Protection and...
Datasheet PDF File ACS70311 PDF File

ACS70311
ACS70311


Overview
ACS70310 and ACS70311 Very High Precision, Programmable Linear Hall-Effect Sensor IC with Reverse Battery Protection and High-Bandwidth (240 kHz) Analog Output for Core-Based Current Sensing FEATURES AND BENEFITS • Factory-programmed segmented linear temperature compensation (TC) provides ultralow thermal drift □ Sensitivity Error ±1% □ Offset Error ±5 mV • On-board supply regulator with reverse-battery protection provides high immunity to Electrical Overstress (EOS) • Very fast response time (2 µs) • High operating bandwidth: DC to 240 kHz • AEC-Q100 Grade 0, automotive qualified • Customer-programmable, high-resolution offset, and sensitivity trim • Extremely low noise and high resolution achieved via proprietary Hall element and low-noise amplifier circuits Continued on next page.
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DESCRIPTION The ACS70311 offers additional features than the ACS70310 and is recommended for new designs.
The Allegro ACS70310/1 IC incorporates a Hall element with BiCMOS integrated circuitry to provide a fully monolithic linear current sensor IC.
The IC is sensitive to magnetic flux density orthogonal to the IC package surface and the output is an analog voltage proportional to the applied flux density.
The ACS70310/1 is designed to be used in conjunction with a ferromagnetic core to provide highly accurate current sensing.
The gain and offset drift over temperature is factory-programmed at Allegro and delivers a solution with ±1% sensitivity error and ±5 mV offset error from 25°C to 150°C.
Continued on next page.
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PACKAGE: 4-pin SIP (suffix KT and OK) TN Leadform TH Leadform (KT Only) TX Leadform (OK Only) KT Package OK Package (ACS70311 Only) Contact Allegro about legacy leadform options VCC CBYPASS PROG_EN (ACS70311 Only) ACS70310/1-DS, Rev.
14 MCO-0000617 Regulator Temperature Sensor To all subcircuits Programming Control RPROG Sensitivity Control Charge Pump Pulse Generator Undervoltage Detection (70311 Only) Broken Ground Detection EEPROM and Control Logic...


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