Power Electronics

Single-Chip Motor Drive Solution

International Rectifier’s (IR) IR3101 is a high-performance, integrated half-bridge inverter for appliance motor drive applications. The IR3101 simplifies half-bridge inverter designs for 1-, 2- or 3-phase motor drives for refrigerator compressors, fans and pumps up to 400 W (up to 250 W with no heat-sink cooling). The IR3101 is a complete driver IC with proprietary HVIC and latch immune CMOS technologies. The output features two built-in HEXFET power MOSFETs with ultrafast recovery body diode characteristics (FredFET) that deliver low di/dt gate drive for better noise immunity and low losses.

Mor Hezi, IR marketing manager for the Consumer and Industrial Business Unit, said, “Because the IR3101 is so small, component layout can be optimized for smaller PCB space, reducing unwanted EMI emissions. In addition, designers using the new device can save design time and reduce component count.”

Propagation delays for the high- and low-side power FredFET devices are matched for better synchronized switching characteristics and lower output distortion. The device can operate up to the maximum input voltage rating of 500 V up to 150°C. The fully isolated MiniSIP package includes ESD protection on all leads and has isolation ratings to 1500Vrms/min.

For more information, visit www.irf.com.

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