October 2011

© 2011 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FSD156MRBN • Rev. 1.0.0

FSD156MRBN

Green-Mode Fairchild Power Switch (FPS™)

Features

Low Standby Power and Low Audible Noise

(OLP), Over-Voltage Protection (OVP), Abnormal

Over-Current Protection (AOCP), Internal Thermal

Shutdown (TSD) with Hysteresis, Output-Short

Protection (OSP), and Under-Voltage Lockout

(UVLO) with Hysteresis

Applications

Combination

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. The PWM

controller

includes

an

integrated

fixed-frequency

oscillator, Under-Voltage Lockout (UVLO), Leading-

Edge Blanking (LEB), optimized gate driver, internal

soft-start, temperature-compensated precise current

sources for loop compensation, and self-protection

circuitry. Compared with a discrete MOSFET and PWM

controller solution, the FSD series can reduce total cost,

component

count,

size,

and

weight;

while

simultaneously increasing efficiency, productivity, and

system reliability. This device provides a basic platform

suited for cost-effective design of a flyback converter.

Ordering Information

Part Number Package

Operating

Junction

Temperature

Current

Limit

(Max.)

Output Power Table

(2)

Replaces

Device

(3)

Adapter

(4)

Open

Frame

(5)

Adapter

(4)

Open

Frame

(5)

FSD156MRBN

8-DIP

-

40°C ~

+125°C

1.60A

2.3



26W

40W

20W

30W

FSFM300N

FSGM300

Notes:

1.

Lead-free package per JEDEC J-STD-020B.

2.

The junction temperature can limit the maximum output power.

3.

4.

Typical continuous power in a non-ventilated enclosed adapter measured at 50

C ambient temperature.

5.

Maximum practical continuous power in an open-frame design at 50

C ambient temperature.