0765RT View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

0765RT

Green Mode Fairchild Power Switch (FPS™)

Fairchild Semiconductor 

Internal Block Diagram

VFB 4

Soft Start

Sync

5

+

Threshold -

Quasi-Resonant

(QR) Switching

Controller

4.6V/2.6V: Normal QR

3.0V/1.8V: Extended QR

Vcc

3

+

fs

-

9V/15V

VCC good

Drain

1

VBurst

Burst Mode

Controller

Normal Operation

Burst Switching

Vref

Vref

Vref

I BFB

I FB

IB

VCC

Idelay

2.5R

R

VSD

Sync

OSC

PWM

SQ

RQ

LEB

600ns

SQ

Vovp

VCC good

(VCC = 9V)

RQ

Auxiliary

Vref

Normal

Operation

QS

QR

Main Bias

Internal

Bias

Gate

Driver

AOCP

TSD

Vocp

Power Off Reset (VCC = 6V)

2 GND

Figure 2. Functional Block Diagram of FSCQ-Series

3

FSCQ-Series Rev. 1.1.2

www.fairchildsemi.com

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