FSD146MRBN Fairchild Semiconductor, FSD146MRBN Datasheet - Page 12

• Manufacturer Part Number: FSD146MRBN
• Description: The FSD146MRBN is an integrated Pulse Width Modulation (PWM) controller and SenseFET designed for offline Switch-Mode Power Supplies (SMPS) with minimal external components
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FSD146MRBN • Rev. 1.0.0
Typical Application Circuit
Key Design Notes:
1.
2.
Schematic
The delay for overload protection is designed to be about 30ms with C105 (8.2nF). OLP time between 39ms
(12nF) and 46ms (15nF) is recommended.
The SMD-type capacitor (C106) must be placed as close as possible to the V
abrupt pulsating noises and to improve ESD and surge immunity. Capacitance between 100nF and 220nF is
recommended.
Power Supply
Application
LCD Monitor
Input Voltage
85 ~ 265V
Figure 25. Schematic
AC
12
Rated Output
14.0V(1.2A)
5.0V(2A)
CC
pin to avoid malfunction by
Rated Power
26.8W
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