International Rectifier AUIRF7738L2/AUIRF7737L2 DirectFET2 devices

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International Rectifier has expanded its family of motor vehicle DirectFET2 power MOSFETs that deliver good power density, dual-sided cooling and minimal parasitic inductance and resistance for heavy load applications.

Uses include electric power steering, power supplies, battery switches on hybrid electric vehicles and integrated starter alternators on micro hybrid vehicles.

The motor vehicle-qualified DirectFET2 devices offer overall system level size and cost reductions along with good performance and efficiency when compared with standard plastic packaged components.

Featuring a PCB footprint 60% smaller than a D2Pak, the AUIRF7738L2 and AUIRF7737L2 DirectFET2 devices deliver low on-state resistance, while the AUIRF7736M2 features a PCB footprint the same size as a 5 x 6 mm PQFN or SO-8 package with low RDS(on) of 2.5 mΩ, making it suitable for more lower power applications.

The devices share a common large can PCB footprint with the previously released AUIRF7739L2 making the devices suitable where a scalable system design is required.

With a package current rating of 315 A for both devices, the package places no constraint on current capability of the silicon. The maximum package current ratings far exceed the limits of traditional DPak and D2Pak packages.