ACS712 - Allegro MicroSystems

ACS712 Fully Integrated / Hall Effect-Based Linear Current Sensor

The Allegro™ ACS712 provides economical and precise solutionsforACorDCcurrentsensinginindustrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switchmode power supplies, and overcurrent fault protection. The device is not i.

Features

▪ Low-noise analog signal path ▪ Device bandwidth is set via the new FILTER pin ▪ 5 µs output rise time in response to step input current ▪ 80 kHz bandwidth ▪ Total output error 1.5% at TA = 25°C ▪ Small footprint, low-profile SOIC-8 package ▪ 1.2 mΩ internal conductor resistance ▪ 2.4 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8 ▪ 5.0 V, single supply operation ▪ 66 to 185 mV/A output sensitivity ▪ Output voltage proportional to AC or DC currents ▪ Factory-trimmed for accuracy ▪ Extremely stable output offset voltage ▪ Nearly zero magnetic hysteresis ▪ Ratiometric output from sup.