Renesas – New super junction MOSFETs offer industry-leading low on-state resistance

Renesas has announced the availability of three new super-junction metal-oxide-semiconductor field-effect-transistors super-junction MOSFETs featuring ‘figure of merit’ on-state resistance x-gate change in a 600V power semiconductor device suitable for high-speed motor drives, DC-DC converters and DC-AC inverter applications.

The industry-leading low on-state resistance and low gate charge combination benchmark, combined with the fast body diode feature, allow the new RJL60S5DPP, RJL60S5DPK and RJL60S5DPE devices to contribute to improved power efficiency in home appliance motor drives, such as for air conditioners, that employ high-speed motors with inverterized control.

In recent years, greater environmental awareness has led efforts to increase the energy efficiency of electronic devices and reduce our energy footprint. In particular, there has been a strong emphasis on reducing loss and improving power efficiency in the power supply circuits of home appliances. This has spurred demand for lower loss (which is a function of lower on-state resistance and better switching characteristics) in the power devices used in such products, to improve overall energy efficiency.

Previously, air conditioners and other home appliances employing high-voltage, high-speed motors and inverters typically used IGBTs with discrete Fast Recovery Diodes (FRDs), in one package, to enable a short reverse recovery time (trr). Now, the need for even higher switching speeds, coupled with the need for even lower loss with stable operation and performance is generating demand for Super Junction MOSFETs with fast recovery body diode characteristics. Unlike a conventional planar structure, the Super Junction MOSFETs enable a decrease of the on-resistance without reducing the voltage tolerance of the device, making it possible to produce MOSFETs with a lower on-resistance per unit of area. To meet the growing need for these devices as the industry moves toward a more energy-conscious perspective, Renesas has leveraged its accumulated expertise in power device technology to develop a family of new high-performance Super Junction MOSFETs with high-speed body diodes, for low loss and improved high-speed switching performance, says the company.