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Hybrid IGBTs comes with built-In SiC diode

ROHM has developed Hybrid IGBTs that come with an integrated 650V SiC Schottky barrier diode, the RGWxx65C series (RGW60TS65CHR, RGW80TS65CHR, RGW00TS65CHR).

The devices are qualified under the AEC-Q101 automotive reliability standard and are intended for automotive and industrial applications that handle large power, such as photovoltaic power conditioners, onboard chargers, and DC/DC converters used in electric and electrified vehicles (xEV).

The RGWxx65C series utilizes ROHM’s low-loss SiC Schottky barrier diodes in the IGBT’s feedback block as a freewheeling diode that has almost no recovery energy and thus minimal diode switching loss.

Additionally, since the recovery current does not have to be handled by the IGBT in turn-on mode, the IGBT turn-on loss has been reduced significantly.

Both effects together result in up to 67% lower loss over conventional IGBTs and 24% lower loss compared with Super Junction MOSFETs (SJ MOSFETs) when used in vehicle chargers. This effect provides good cost performance while contributing to lower power consumption in industrial and automotive applications.

Author
Neil Tyler

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