IR Introduces Three-Phase Gate Driver IC with Integrated Operational Amplifier and Bootstrap Functionality for Motor Drive Applications

EL SEGUNDO, Calif.—(BUSINESS WIRE)—June 26, 2008— International Rectifier, IR® (NYSE:IRF), a world leader in power management technology, today 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 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.

With its high level of integration, including an operational amplifier and bootstrap diode, the IRS233x(D) family simplifies and shrinks motor drive design while providing a high level of reliability and ruggedness, said Henning Hauenstein, IRs vice president Product Marketing, Automotive, Appliance and Industrial Motion.

The IRS233x(D) 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 utilize IRs 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. In addition to over-current detection input, 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.

More information is available on the International Rectifier website at http://www.irf.com/whats-new/nr080626.html.

Availability and Pricing

Available in 44-pin PLCC and 28-pin SOIC (wide body), pricing for the IRS233x(D) begins at US $2.49 each in quantities of 100,000-units. Production quantities are available immediately. The devices are RoHS compliant and prices are subject to change.

About International Rectifier

International Rectifier (NYSE:IRF) is a world leader in power management technology. IRs analog- and mixed-signal ICs, advanced circuit devices, integrated power systems, and components enable high-performance computing and reduce energy waste from motors, the worlds single largest consumer of electricity. Leading manufacturers of computers, energy-efficient appliances, lighting, automobiles, satellites, aircraft, and defense systems rely on IRs power-management benchmarks to power their next generation products. For more information, go to www.irf.com.

Trademark Notice

IR® is a registered trademark of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders.



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Sian Cummins, 310-252-7148
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