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A compact carrier board for the Allegro ACS711EX Hall effect-based linear current sensor with overcurrent fault output. It measures bidirectional current up ...

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A compact carrier board for the Allegro ACS711EX Hall effect-based linear current sensor with overcurrent fault output. It measures bidirectional current up to ±31 A with a proportional analogue voltage output centred at Vcc/2. The sensor offers a very low resistance current path (~0.6 mΩ) and electrical isolation up to 100 V.

Operating from 3 V to 5.5 V, the board interfaces directly with both 3.3 V and 5 V systems without level shifting.

Key Features

  • Current Range – ±31 A bidirectional
  • Sensor – Allegro ACS711EX Hall effect linear current sensor
  • Low Resistance – ~0.6 mΩ current path for minimal insertion loss
  • Electrical Isolation – Up to 100 V between current path and sensor output
  • Output – Proportional analogue voltage centred at Vcc/2, typical error ±4%
  • Supply Voltage – 3 V to 5.5 V (compatible with 3.3 V and 5 V systems)
  • Overcurrent Fault Output – Dedicated fault pin for protection circuits

Ideal For

  • Motor current monitoring
  • Overcurrent protection circuits
  • Battery charging systems
  • Power supply monitoring

Also Available

Package Contents

  • 1× ACS711EX Current Sensor Carrier Board

Jargon buster

Plain-language definitions for the technical terms used above.

VCC
VCC is the positive power-supply connection on a chip or module. Connecting it to the correct supply voltage is needed for the part to power on and helps avoid damaging the electronics.

Related Tutorials

Free guides on learn.littlebird.com.au

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