DFN2020 MOSFETs save space in automotive power designs

September 12, 2019 //By Christoph Hammerschmidt
Automotive-compliant power MOSFETs in DFN2020 package from Diodes occupy just 10 percent of the PCB area of larger SOT223 packages.
Automotive-compliant power MOSFETs in DFN2020 package from Diodes occupy just 10 percent of the PCB area of larger SOT223 packages.

The smaller DFN2020 power MOSFET packaging enables greater power density in DC-DC converters, LED backlighting, ADAS, and other ‘under-the-hood’ automotive applications.

The new products are the 40V-rated DMTH4008LFDFWQ and the 60V-rated DMTH6016LFDFWQ. The first one (the DMTH4008LFDFWQ) has a typical RDS(ON) of 11.5mΩ at VGS = 10V and a gate charge, Qg, of just 14.2nC. The DMTH6016LFDFWQ has a typical RDS(ON) of 13.8mΩ at VGS = 10V and a Qg of 15.2nC. Similarly, both devices are qualified to 175°C and packaged in the sidewall plated DFN2020, making them suitable for use in high ambient temperature environments. 

When used in a typical application, such as a 12V, 5A buck converter, the DMTH4008LFDFWQ dissipates 20 percent less power than comparable devices. This significant improvement in efficiency from the DFN2020 package provides automotive designers with greater flexibility and the freedom to increase power density in new or existing automotive applications, as well as reducing the thermal issues and improving reliability 

The DMTH4008LFDFWQ and DMTH6016LFDFWQ are automotive-compliant to AEC-Q101 and supported by PPAP for full traceability. They are available now priced at $0.20 and $0.26 each, respectively, in 3000 piece quantities. 

www.diodes.com


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