Hall Effect Current Sensor ACS712T

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Description

The Allegro ACS712T provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and over current fault protection. The device is not intended for auto motive applications. The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die.

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
  • 2.1 kV RMS 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
  • Ratio metric output from supply voltage

SPECIFICATION

  • Additional information
  • Gross weight: 14 g
  • Manufacturer part number: ACS712T

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