Infineon Technologies AG has launched the OptiMOS Linear FET series. This product family combines the state-of-the-art on-state resistance (RDS(on)) of a trench MOSFET with the wide Safe Operating Area of a planar MOSFET. This solves the trade-off between RDS(on)and linear mode capability. The OptiMOS Linear FET can operate in the saturation region of an enhanced mode MOSFET. It is well suited for hot-swap, e-fuse, and protection applications commonly found in telecom and battery management systems (BMS).
Both the rugged linear mode operation and the higher pulse current contribute to low conduction losses, faster start-up, and shorter down time. The OptiMOS Linear FET prevents damage at the load if there is a short circuit, by limiting high in-rush currents.
The OptiMOS Linear FET is available now in three voltage classes: 100 V, 150 V, and 200 V. They can be supplied in either a DPAK or DPAK 7pin package. These industry standard packages offer a compatible footprint for drop-in replacement.