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IR21771S Datasheet Phase Current Sensor IC

Manufacturer: International Rectifier (now Infineon)

Overview: Data Sheet No. PD60234 revB IR22771S/IR21771S(PbF) Phase Current Sensor IC for AC motor.

Download the IR21771S datasheet PDF. This datasheet also includes the IR22771S variant, as both parts are published together in a single manufacturer document.

General Description

IR21771/IR22771 is a high voltage, high speed, single phase current sensor interface for AC motor drive applications.

The current is sensed by an external shunt resistor.

The IC converts the analog voltage into a time interval through a precise circuit that also performs a very good ripple rejection showing small group delay.

Key Features

  • Floating channel up to 600V for IR21771 and 1200V for IR22771 Product Summary.