Siliconix Inc. (Santa Clara, CA), a subsidiary of Vishay Intertechnology Inc. (Malvern, PA), announced new Si7820DN 200 V TrenchFET power MOSFET, available in the PowerPAK1212-8 package, which is intended for primary dc-dc switching applications for power supplies in fixed telecom networks and routers.
The PowerPAK 1212-8 package measures 3.3 mm x 3.3 mm with a low 1.07 mm height profile, offering smaller dimensions than SO-8 solutions while providing thermal performance. Power dissipation for the PowerPAK 1212-8 package is 3.8 W. Typical thermal resistance is just 1.9 °C/W compared to 16 °C/W for the SO-8. In addition to space savings and a high-voltage capability, the Si7820DN features on-resistance of 240 milliohms and a typical gate charge of 12.1 nC (at a 10 V gate drive). The new power MOSFET is rated for an operating junction and storage temperature range of -55 °C to +150 °C.
Samples of the Si7820DN power MOSFET are available now, with lead times of 10 to 12 weeks for production quantities. Pricing for delivery in 10,000-piece quantities is $1.26.
