FSD156MRBN Fairchild Semiconductor, FSD156MRBN Datasheet - Page 3

• Manufacturer Part Number: FSD156MRBN
• Description: The FSD156MRBN is an integrated Pulse Width Modulation (PWM) controller and SenseFET specifically designed for offline Switch-Mode Power Supplies (SMPS) with minimal external components
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FSD156MRBN • Rev. 1.0.0
Pin Configuration
Pin Definitions
5, 6, 7, 8
Pin #
1
2
3
4
Name
Drain
GND
V
NC
FB
CC
Ground. This pin is the control ground and the SenseFET source.
Power Supply. This pin is the positive supply input, which provides the internal operating
current for both startup and steady-state operation.
Feedback. This pin is internally connected to the inverting input of the PWM comparator.
The collector of an opto-coupler is typically tied to this pin. For stable operation, a capacitor
should be placed between this pin and GND. If the voltage of this pin reaches 7.0V, the
overload protection triggers, which shuts down the FPS™.
No Connection
SenseFET Drain. High-voltage power SenseFET drain connection.
4. N.C.
1. GND
2. V
3. FB
CC
Figure 3.
FSD156MRBN
Pin Configuration (Top View)
3
Description
8. Drain
7. Drain
6. Drain
5. Drain
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