SiC power modules speed EV charging

onsemi’s APM32 series of SiC-based power modules handles on-board charging and high-voltage DC/DC conversion in all types of electric vehicles. Among the first to adopt SiC technology in a transfer molded package, the devices enhance efficiency and shorten the charge time of EVs and plug-in hybrid EVs.

Specifically designed for high-power 11-kW to 22-kW on-board chargers (OBCs), each of the three modules in the APM32 series exhibits low conduction and switching losses, as well as best-in-class thermal resistance and high voltage isolation to deal with 800-V bus voltages. These features allow for a more powerful OBC that can charge an EV faster and increase its operating range.

Two modules in the APM32 series, the NVXK2TR40WXT and NVXK2TR80WDT, are configured in a half-bridge topology with a breakdown capability of 1200 V, making them well-suited for high-voltage battery stacks. They are intended to be used in the OBC and HV DC/DC conversion stages. The third module, the NVXK2KR80WDT, is configured in a Vienna rectifier topology and used in the power factor correction (PFC) stage of the OBC. Six-pack and full-bridge modules are planned for the near future to complete the SiC OBC portfolio.

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The top cool and isolated features of the DIP devices meet the most stringent automotive industry standards. Creepage and clearance distances comply with IEC 60664-1 and IEC 60950-1. Additionally, the modules are qualified to AEC-Q101 and AQG 324 for automotive use.

NVXK2TR40WXT product page

NVXK2TR80WDT product page

NVXK2KR80WDT product page

onsemi

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