Alpha and Omega Semiconductor (AOS) has announced its αMOS E2 600 V Super Junction MOSFET platform and introduced the first device in the family, the AOTL037V60DE2 600 V MOSFET. AOS positions the platform for mid- to high-power switched-mode power supplies (SMPS) and solar inverter systems that need higher efficiency, higher power density, lower system cost, and robust behavior under abnormal operating conditions.
For data center power conversion, AOS lists target applications including servers, workstations, and telecom rectifiers, along with industrial power systems. The company also cites solar inverters, motor drives, and DC to AC inverter designs as additional targets for the device.
AOS says the αMOS E2 platform includes a robust intrinsic body diode intended to handle hard-commutation cases, including reverse recovery of the freewheeling body diode during abnormal events such as short-circuits and start-up transients. The AOTL037V60DE2 is offered in a TOLL package and has a maximum RDS(ON) of 37 milliohms. In evaluations run by AOS’ application engineering team, AOS reports the body diode ruggedness “demonstrated the ability to withstand di/dt = 1300 A/μs under specific forward current (IF) conditions at a junction temperature of 150 °C.”
AOS also reports that its testing showed the AOTL037V60DE2 delivered “superior Avalanche Unclamped Inductive Switching (UIS) capability and a longer Short-Circuit Withstanding Time (SCWT) when compared to competing MOSFETs,” which it says improves system-level reliability in abnormal scenarios. The company lists support for power topologies including the slow leg of totem-pole power factor correction (PFC), LLC resonant converters, phase-shifted full-bridge (PSFB), and cyclo-converters, and it calls out design elements such as low switching losses for soft-switching topologies, reduced reverse-recovery charge (Qrr), inrush current handling and wide safe operating area (SOA), and design measures intended to prevent self-turn-on. AOS also lists suitability for critical conduction mode (CrCM) H-4 and cyclo-inverter applications.
On pricing and availability, AOS says the AOTL037V60DE2 (600 V, 37 milliohm, TOLL) is available in production quantities with a 16-week lead time, with unit pricing of $5.58 in 1,000-piece quantities.
Source: Alpha and Omega Semiconductor
