Package boost for Source-Down power MOSFETs

Package boost for Source-Down power MOSFETs

Technology News |
By Nick Flaherty

Infineon Technologies has developed a new package technology for its Source-Down (SD) power MOSFETs operating from 25V to 100V.

The 3.3 x 3.3 mm PQFN package sets a new standard in power MOSFET performance, offering higher efficiency, higher power density, superior thermal management and low bill-of-material (BOM) for motor drives, SMPS for server and telecom and OR-ing, as well as battery management systems.

The latest Source-Down package technology enables a larger silicon die in the same package outline, reducing the RDS(on) on resistance and the package losses. This enables a reduction in RDS(on) by up to 30 percent compared to the previous Drain-Down package.

This smaller form factor allows designers to move from a SuperSO8 5 x 6 mm  footprint to a PQFN 3.3 x 3.3 mm  package with a space reduction of about 65 percent, enhancing the power density and system efficiency in the end system.

Additionally, in the Source-Down concept, the heat is dissipated directly into the PCB through a thermal pad instead of over the bond wire or the copper clip. This improves the thermal resistance by more than 20 percent, from 1.8 K/W down to 1.4 K/W for simpler thermal management.

Infineon offers two different footprint versions and layout options: the SD Standard-Gate and the SD Center-Gate. The Standard-Gate layout simplifies the drop-in replacement of Drain-Down packages, while the Centre-Gate layout enables optimized and easier parallelization. These two options can bring optimal device arrangement in the PCB, optimized PCB parasitics, and ease of use.

The OptiMOS Source-Down power MOSFETs are now available in PQFN 3.3 x 3.3 mm 2 packaging, a wide range of voltage classes from 25 up to 100 V, and two different footprint versions.

Related articles

Other articles on eeNews Power


If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :    eeNews on Google News


Linked Articles