MOSFETs ensure no compromise between protection and operating efficiency

Nexperia has introduced the latest addition to its NextPower Live linear-mode MOSFET family, PSMN3R7-100BSE delivers a best-in-class combination of strong SOA and low RDS(on), and is ideal for hot swap, soft start and e-fuse applications. To handle the high in-rush current that can happen when swapping a server board or other pluggable system, or to guarantee that a processor board is brought up smoothly, a MOSFET with high SOA is used together with a hot swap controller. Previous generation parts have traded off SOA against RDS(on), but the new technology maximises SOA without affecting RDS(on), therefore maintains high operating efficiency levels. The company’s new MOSFETs improve SOA with a four-fold improvement in linear mode performance in comparison to standard technology, yet have a maximum RDS(on) of only 3.95mOhm (3.36mOhm typ.) – around 18% less than previous devices. These N-channel 100V devices are offered in the D2PAK package, qualified to 175C. Devices are compatible with hot-swap controllers from leading manufacturers. Comments Mike Becker, Nexperia’s product manager: “Server and communications infrastructure companies are packing more and more processing power onto their blades and rack-based systems, continually pushing up power requirements. Reliable hot-swap operation is essential to manage the in-rush currents experienced during start-up, but as power levels rise and efficiency requirements increase, then low RDS(on) is also becoming more important. NextPower Live MOSFETs from Nexperia, deliver benchmark combination of strong SOA and low RDS(on), allowing engineers to design ultra-rugged hot-swap solutions to manage the in-rush currents, while lower RDS(on) delivers the highest level of efficiency.”