100V BoostPak Provides Improved Reliability, Reduces System Costs in LED Applications

Fairchild Semiconductor optimizes the MOSFET and diode selection process by introducing a family of 100 V BoostPak devices that combines a MOSFET and diode in one package to replace discrete solutions currently used in LED TV / monitor backlight, LED lighting and DC-DC converter applications. By integrating the MOSFET and diode into a single package, the FDD1600N10ALZD and FDD850N10LD devices save board space, simplify assembly, lower bill of material (BOM) costs and improve reliability of the application.

The devices feature an N-channel MOSFET produced using Fairchild’s PowerTrench® process that has been tailored to minimize the on-state resistance while maintaining superior switching performance. The NP diode is a hyperfast rectifier with low forward voltage drop and excellent switching performance. It has much lower leakage current than a Shottky diode, which improves system reliability in high temperature applications.

Key features for the FDD1600N10ALZD include: RDS(ON) = 124 mΩ (Typ.)@ VGS = 10 V, ID = 3.4 A; RDS(ON) = 175 mΩ (Typ.)@ VGS = 5 V, ID = 2.1 A; Low Gate Charge = 2.78 nC (Typ.); and Low Crss = 2.04 pF (Typ.). Key features for the FDD850N10LD include: RDS(ON) = 61 mΩ (Typ.)@ VGS = 10 V, ID = 12 A; RDS(ON) = 64 mΩ (Typ.)@ VGS = 5.0 V, ID = 12 A; Low Gate Charge = 22.2 nC (Typ.); and Low Crss = 42 pF (Typ.). Both parts offer fast switching, 100% avalanche testing, improved dv/dt capability and RoHS compliance. Prices in 1,000 quantity pieces are: FDD1600N10ALZD, US$0.49; and FDD850N10LD, US$0.57.