Power Electronics

200V and 250V OptiMOS(tm) Devices

Infineon Technologies AG expanded the application scope of its OptiMOS power MOSFET portfolio, introducing a family of 200V and 250V devices well-suited for synchronous rectification in 48V systems, DC-DC converters, uninterruptable power supplies (UPS) an d inverters for DC motor drives. Featuring the lowest Figure of Merit (FOM) compared to alternative devices, OptiMOS 200V and 250V technology slash conduction losses in system designs by one-half.

Engineers that until now designed 48V power supplies using a diode-based rectification stage in the SMPS (switched mode power supply) now have an alternative that enables overall efficiency levels exceeding 95 percent, which is 2 percent higher than typical today and translates to 30 percent lower power losses. This fulfills growing demands for higher efficiency in telecommunication networking markets, where business customers are seeking economic and market positioning advantages based on "green" technology infrastructure.

OptiMOS 200V and 250V family devices feature RDS(on) (on-state resistance) 50 percent lower than alternative devices, which translates to the lowest possible power losses in high current applications. The industry's lowest gate charge (Qg) - up to 35 percent less than alternatives - contributes to low losses and fast switching in switched mode applications like isolated DC-DC converters for telecom applications. Additionally, the device family allows system cost improvement through reduced device paralleling; the ability to use smaller heat sinks as a result of the low on-state resistance; and a fast and low complexity design process due to optimized switching behavior.

The characteristics of the OptiMOS 200V and 250V family allow use of a slim SuperSO8 package (5mm x 6mm x 1mm) for applications that previously required bulky D²PAK devices (9mm x 10mm x 4.5mm). Going from D²PAK to SuperSO8 reduces the power semiconductor space requirement by more than 90 percent and enables higher power density systems. Additionally, using leadless packages like SuperSO8 provides ideal switching behavior and high efficiency levels.

Available immediately, the OptiMOS 200V and 250V device family includes components in TO-220, TO-262, D²PAK and SuperSO8 packages in RDS(on) classes 10.7mOhm, 20mOhm, 32mOhm and 60mOhm. For small quantity (10k units), pricing begins at US $1.20 for 200V an d US $1.40 for 250V.

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