ACS72981LLRATR-100B5 Description

The Allegro™ ACS72981LLRATR-100B5 current sensor IC provides economical and precise solutions for AC or DC current sensing. A 250 kHz bandwidth makes it ideal for motor control, load detection and management, power supply and DC-to-DC converter control, and inverter control. The <2 µs response

time enables overcurrent fault detection in safety-critical applications. The ACS72981LLRATR-100B5 consists of a precision, low-offset linear Hall circuit with a copper conduction path located near the die. 

ACS72981LLRATR-100B5 Features

AEC-Q100 automotive qualification

High-bandwidth 250 kHz analog output

Less than 2 μs output response time

3.3 V and 5 V supply operation

Ultralow power loss: 200 μΩ internal conductor resistance

Industry-leading noise performance and increased bandwidth through proprietary amplifier and filter design techniques

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

Output voltage proportional to AC or DC currents

Factory-trimmed for accuracy

Extremely stable zero amp output offset voltage over temperature and lifetime

ACS72981LLRATR-100B5 Applications

Automotive 

Body electronics & lighting 

Industrial 

Test & Measurement 

Personal electronics 

Gaming