With the introduction of its CoolSiC automotive MOSFET technology into the EasyPACK and full automotive qualification, Infineon Technologies is expanding the range of applications for the module family to include high-voltage applications in electric cars with high efficiency and switching frequency requirements. These include HV/HV-DC-DC step-up converters, multi-phase inverters and fast-switching auxiliary drives such as compressors for fuel cells.
The new module is based on Infineon's silicon carbide trench MOSFET structure. Compared to planar structures, the trench structure enables a higher cell density, resulting in the best-in-class figure of merit. As a result, trench MOSFETs can be operated at lower gate-oxide field strengths for higher reliability.
First-generation CoolSiC automotive MOSFET technology is optimized for use in traction inverters, with a focus on achieving the lowest possible conduction losses, especially under partial load conditions. Combined with the low switching losses of silicon carbide MOSFETs, this enables losses in inverter operation to be reduced by around 60 percent compared to silicon IGBTs.
In addition to optimizing performance, Infineon attaches great importance to reliability. The chip manufacturer develops and tests CoolSiC automotive MOSFETs with the aim of achieving high short-circuit, cosmic ray, and gate-oxide robustness, which is key for designing efficient and reliable high-voltage applications in electric cars.
The new CoolSiC automotive MOSFET power module is fully qualified to the AQG324 standard.
Mass production of the EasyPACK CoolSiC Automotive MOSFET module FF08MR12W1MA1_B11A has started. It will be available at distributors, starting in September 2020.
The product introduction is part of Infineon’s virtual presence at the PCIM power electronics trade fair which takes place from July 1 through July 3. Due to the Corona crisis, the entire trade fair in this year is taking place in a virtual space. To visit Infineon’s booth and attend live sessions, please register here.
Further information: www.infineon.com/sicatv.