ST announces 'industry's lowest' RDS(On) per die area

STMicroelectronics has added a range of options to its MDmesh V power mosfets with a new device which it says delivers the industry's lowest on state resistance for 650V mosfets.

According to ST, the STW77N65M5 device offers an RDS(ON) of 38mOhm in the TO-247 package. ST also plans to introduce the STY112N65M5 with RDS(On) of 22mOhm in the Max247 package during 2010. ST's marketing director, Power MOSFET Division, Maurizio Giudice, said: "The MDmesh V family combines proprietary fifth generation super junction technology with our proven PowerMESH horizontal layout, giving superior performance compared to the competing devices. The industry's lowest RDS(On) per die area delivers efficiency advantages in any package style. Designers can use this superiority to improve performance and reduce overall size by replacing multi-parallel networks of conventional MOSFETs with a far smaller number of MDmesh V devices." Designed for applications where conduction loss has a major influence over efficiency, typical applications include pc and server power supplies, solar power converters, welding power supplies and UPS equipment.