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IR THREE-PHASE GATE DRIVER IC

Published: 28/07/2008

International Rectifier (IR) has introduced the IRS233x(D) family of

three-phase gate driver ICs for low-, mid-, and high-voltage motor

drive applications including permanent magnet (PM) motor drives for

air conditioners, washing machines, pumps and fans, and micro, mini

and general purpose inverter drives.

The IRS233x(D) is a high-voltage, high speed power MOSFET and

IGBT three-phase bridge- driver with referenced output channels to

provide 200 mA/420 mA drive current at up to 20 V MOS gate drive

capability operating up to 600 V. The new devices feature anintegrated ground-referenced operational amplifier to provide analogue feedback of the bridge current via

an external current sense resistor and optional integrated bootstrap diode to reduce external part count and

reduce PCB size.

The family provides comprehensive protection including proprietary negative voltage spike (Vs) immunity for

safe operation under extreme switching conditions and short circuit events. The output drivers feature a

high pulse current buffer stage designed for minimum driver cross-conduction. Propagation delays are

matched to simplify use at high frequencies. The floating channel can be used to drive N-channel power

MOSFET or IGBT in the high-side configuration.

The new ICs utilise IR's advanced high-voltage IC process which incorporates next-generation high-voltage

level-shifting and termination technology to deliver superior electrical over-stress protection and higher field

reliability. The IRS233x(D) features under-voltage lock-out protection, integrated deadtime protection,

shoot-through protection, fault-reporting, and is compatible with 3.3 V input logic.

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amplifier, Drives, Fans, ics, igbt, International

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