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IR2172 - LINEAR CURRENT SENSOR

Description

IR2172 is the monolithic current sensing IC designed for motor drive applications.

It senses the motor phase current through an external shunt resistor, converts from analog to digital signal, and transfers the signal to the low side.

Features

  • Floating channel up to +600V.
  • Monolithic integration.
  • Linear current feedback through shunt resistor.
  • Direct digital PWM output for easy interface.
  • Low IQBS allows the boot strap power supply.
  • Independent fast overcurrent trip signal.
  • High common mode noise immunity.
  • Input overvoltage protection for IGBT short circuit condition.
  • Open Drain outputs Product Summary.

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Full PDF Text Transcription

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ADVANCE INFORMATION Data Sheet No. PD60176-C IR2172 LINEAR CURRENT SENSING IC Features • Floating channel up to +600V • Monolithic integration • Linear current feedback through shunt resistor • Direct digital PWM output for easy interface • Low IQBS allows the boot strap power supply • Independent fast overcurrent trip signal • High common mode noise immunity • Input overvoltage protection for IGBT short circuit condition • Open Drain outputs Product Summary VOFFSET IQBS Vin Gain temp.drift 600Vmax 1mA +/-260mVmax 20ppm/oC (typ.) fo Overcurrent trip signal delay 40kHz (typ.) 1.5usec (typ) Description IR2172 is the monolithic current sensing IC designed for motor drive applications.
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