FSQ0165RN(2007_05) Просмотр технического описания (PDF) - Fairchild Semiconductor

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FSQ0165RN
(Rev.:2007_05)

Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter - Low EMI and High Efficiency

Fairchild Semiconductor 

Typical Circuit

VO

AC

IN

Vstr

Drain

Sync

PWM

GND

Vfb Vcc

FSQ0365RN Rev.00

Figure 1. Typical Flyback Application

Internal Block Diagram

Vfb

3

Sync

4

0.7V/0.2V

+

0.35/0.55

VCC

Vref

VBurst

-

Idelay

IFB

3R

R

Soft-

Start

+

-

PWM

Vstr

5

Vcc Drain

2 678

OSC

Vref

VCC good

+

-

8V/12V

LEB

200ns

SQ

RQ

Gate

driver

6V

VSD

Sync

6V

Vovp

TSD

2.5μs time

delay

VCC good

SQ

RQ

AOCP

Figure 2. Functional Block Diagram

VOCP

(1.1V)

1

GND

FSQ0365RN Rev.00

© 2006 Fairchild Semiconductor Corporation

FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4

3

www.fairchildsemi.com

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