Inverter chip simplifies appliance motor drives

The IR3101 simplifies half-bridge inverter designs for one-, two- or three-phase motor drives for refrigerator compressors, fans and pumps up to 400W (up to 250W with no heatsink cooling).

The IR3101 simplifies half-bridge inverter designs for one-, two- or three-phase motor drives for refrigerator compressors, fans and pumps up to 400W (up to 250W with no heatsink cooling).

In addition, the small size of the new IR3101 allows component layout to be optimised for smaller PCB space, reducing unwanted EMI emissions.

IR's IR3101 is a complete driver IC with proprietary HVIC and latch immune CMOS technologies.

The output features two built-in HEXFET power mosfets with ultra-fast-recovery body diode characteristics (FredFET) that deliver low di/dt gate drive for better noise immunity and low losses.

Propagation delays for the high- and low-side power FredFET devices are matched for better synchronized switching characteristics and lower output distortion.

The IR3101 device can operate up to the maximum input voltage rating of 500V at temperatures as high as 150C.

Operating frequency is rated at 20kHz and current is rated at 1.6A.

Supplied in a fully isolated MiniSIP package, the device includes ESD protection on all leads and has minimum isolation ratings to 1500V RMS.

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