ROHM has announced the development of a 1200V/300A full SiC power module designed for inverters and converters in solar power conditioners and industrial equipment. The 300A rated current makes the BSM300D12P2E001 suitable for high power applications such as large-capacity power supplies for industrial equipment. In addition, 77% lower switching loss vs. conventional IGBT modules enables high-frequency operation, contributing to smaller cooling countermeasures and peripheral components.
The BSM300D12P2E001 features an optimized chip layout and module construction that significantly reduces internal inductance, suppressing surge voltage while enabling support for higher current operation up to 300A. And going forward ROHM will continue to strengthen its line-ups by developing products compatible with larger currents that incorporate SiC devices utilizing high voltage modules and trench structures.
Key features include: Reduced switching loss through higher frequency operation, replacing IGBT modules is expected to reduce switching loss by up to 77%, enabling smaller cooling systems to be used. And higher frequency switching will make it possible to decrease the size of peripheral components such as the coil and capacitors as well, improving efficiency while contributing to greater end-product miniaturization.
Lower inductance improves current-handling capability, increasing the rated current for power modules involves reducing the internal inductance to counter the higher surge voltages generated during switching. The BSM300D12P2E001 features an all-SiC construction and optimized circuit layout that cuts internal inductance by half, making it possible to increase the rated current to 300A.
Device configuration is a full H-bridge SiC module integrating an SiC SBD and SiC-MOSFET into a single package; with an equivalent package size to standard IGBT modules, a built-in thermistor, and Tjmax = 175 degrees C. Samples are currently available.
