Gate driver IC

International Rectifier has introduced the IRS233x(D) family of three-phase gate drive ICs for low-, mid- and high-voltage motor drive applications including permanent magnet motor drives for air conditioners, washing machines, pumps and fans, and micro, mini and general-purpose inverter drives.

The family is a high-voltage, high-speed power MOSFET and IGBT three-phase bridge-driver with referenced output channels to provide 200/420 mA drive current at up to 20 V MOS gate drive capability operating up to 600 V.

The devices feature an integrated ground-referenced operational amplifier to provide analog 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 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 ICs use a high-voltage IC process that incorporates next-generation high-voltage level-shifting and termination technology to deliver electrical over-stress protection and higher field reliability.

In addition to overcurrent detection input, the devices feature undervoltage lock-out protection, integrated deadtime protection, shoot-through protection, fault-reporting and are compatible with 3.3 V input logic.