Reference Design Rd-326 Fairchild Power Switch Fps? Fsfa2100 - 300w Design

Fairchild Semiconductor

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Reference Design RD-326
Fairchild Power Switch (FPS
TM
) FSFA2100 - 300W Design
Featured Device Application
LCD TV
Input Voltage
Range
340~400V
DC
Output Voltage
(Rated Current)
24V (12.5A)
Rated Output
Power
300W
Topology
Asymmetric PWM
Half-Bridge Converter
Key Features
Optimized for Complementary Driven Half-Bridge Soft-Switching Converters
Internal SuperFET™s with Fast Recovery Type Body Diode: t
rr
=120ns
Fixed Dead Time: 200ns
Up to 300kHz Operating Frequency
Internal Soft-Start
Burst-Mode Operation for Low Standby Power Consumption
Various Protection Functions: Over-Voltage Protection (OVP), Overload Protection (OLP), Abnormal
Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD), and Pulse-by-Pulse Current Limit
100V/20A Ultra-Fast Recovery Rectifier Common Cathode
Low Forward-Voltage Drop: 1.15V at T
A
= 25
o
C, 10A
RUGR1520CC
200V/15A Ultra-Fast Diode Common Cathode
Low Forward-Voltage Drop: 1.05V at T
A
= 25
o
C, 15A
1. Schematic
Figure 1.
Schematic
© 2009 Fairchild Semiconductor Corporation
1
RD-326 FSFA2100 • Rev. 0.0.1