Infineon announces 650V SiC MOSFETs
CoolSiC devices address growing demand for energy efficiency, power density, and robustness
Infineon Technologies is expanding its SiC product portfolio with 650 V devices. With the newly launched CoolSiC MOSFETs Infineon is addressing the growing demand for energy efficiency, power density, and robustness in a wide range of applications. Amongst them are server, telecom and industrial SMPS, solar energy systems, energy storage and battery formation, UPS, motor drives as well as EV-charging.
“With this launch, Infineon complements its broad silicon, SiC, and GaN-based power semiconductor portfolio in the 600 V / 650 V power domain,” said Steffen Metzger, senior director high voltage conversion at Infineon’s Power Management & Multimarket Division. “It underlines our unique position in the market being the only manufacturer with such a broad offering for all three power technologies. Additionally, the new CoolSiC family supports our claim to be the number 1 supplier of SiC MOSFET switches for industrial purposes.”
The CoolSiC MOSFET 650 V devices are rated from 27 mΩ to 107 mΩ. They are available in classic TO-247 3-pin as well as TO-247 4-pin packages, which allows for even lower switching losses. As for all previously launched CoolSiC MOSFET products, the new family of 650 V devices are based on Infineon’s state-of-the-art trench semiconductor technology. Maximising the strong physical characteristics of SiC, this ensures that the devices offer superior reliability, best-in-class switching and conduction losses. Additionally, they feature highest transconductance level (gain), threshold voltage (V th) of 4 V and short-circuit robustness.
650 V CoolSiC MOSFETs are said to offer many benefits in comparison to other silicon and SiC solutions such as switching efficiency at higher frequencies and high reliability. Thanks to the low on-state resistance (R DS(on)) dependency on temperature they feature an excellent thermal behaviour. The devices also have body diodes retaining a low level of reverse recovery charge (Q rr), roughly 80 percent less compared to the best superjunction CoolMOS MOSFET. The commutation-robustness helps in achieving very easily an overall system efficiency of 98 percent, e.g. through the usage of continuous conduction mode totem-pole power factor correction (PFC).
To ease the application design using CoolSiC MOSFETs 650 V and to ensure high performance operation of the devices, Infineon offers dedicated 1-channel and 2-channel galvanically isolated EiceDRIVER gate-driver ICs. This solution – combining CoolSiC switches and dedicated gate-driver ICs – helps lowering system costs as well as total cost of ownership and enables energy efficiency gains. The CoolSiC MOSFETs also work seamlessly with other ICs from Infineon’s EiceDRIVER gate-driver family.
