ACS711

ACS711 Hall-Effect Linear Current Sensor with Overcurrent Fault Output for <100 V Isolation Applications FEATURES AND BENEFITS No external sense resistor required; single package solution Reduced power loss: □ 0.6 mΩ internal conductor resistance on EX package □ 1.2 mΩ internal conductor resistance on LC package Economical low- and high-side current sensing Output voltage proportional to AC or DC currents ±12.5 A and ±25 A full-scale sensing ranges on LC package ±15.5 A and ±31 A full-scale sensing ranges on EX package Overcurrent ¯F¯A¯¯U¯¯L¯¯T¯ trips and latches at 100% of full-scale current Low-noise analog signal path 100 kHz bandwidth Small footprint, low-profile SOIC8 and QFN packages 3 to 5.5 V single supply operation Integrated electrostatic shield for output stability Factory-trimmed for accuracy Extremely stable output offset voltage Zero magnetic hysteresis Ratiometric output from supply voltage PACKAGES: 8-pin SOICN with internally fused path (LC package) 12-contact QFN 3 mm × 3 mm × 0.75 mm (EX package) Not to scale DESCRIPTION TheAllegro™ACS711 provides economical and precise solutions for AC or DC current sensing in <100 V audio, communications systems, and white goods. The device package allows for easy implementation by the customer. Typical applications include circuit protection, current monitoring, and motor and inverter control. The device consists of a linear Hall sensor circuit with a copper conduction path located ne...