FSFR1700 View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

FSFR1700

Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converters

Fairchild Semiconductor 

Typical Application Circuit (Half-bridge LLC Resonant Converter)

Application FPS™ Device Input Voltage Range

LCD TV

FSFR2100

400V

(20ms hold-up time)

Rated Output Power

192W

Output Voltage

(Rated Current)

24V-8A

Features

ƒ High efficiency ( >94% at 400VDC input)

ƒ Reduced EMI noise through zero-voltage-switching (ZVS)

ƒ Enhanced system reliability with various protection functions

Brownout circuit

C102

22nF/

630V

C111

330n/

275VAC

VCC=16~20VDC VCC

R109

1M

R110

1M

R111

45k

Line

Filter

R108

open

C110 330n/

275VAC

NTC

5D-9 F101

3.15A/

250V

C101

220uF/

450V

U2

C109

22µF

R114

10k

R104

5.1k

R105

7.5k

C108

12nF

R113 400k

U5 JP2, 0

R112

10k

U4

ZD101

6.8V

C105

0.33µF/

50V

LVCC

VDL

R106

27

D101

1N4937

C107

10µF

R107

2.2k

C112

680pF

RT

CON

C104

open

Control

IC VCTR

HVCC

C106

150nF

R103, 0

CS

JP1, 0

SG

PG

R102

1kΩ

C103

100pF

EER3542

1

16

12, 13

D211

FYP2010DN

C201

2200µF

35V

C202

2200µF

35V

VO

8

9

R202

1k

D212

FYP2010DN

C301

U3

KA431

R201

10k

U2

C204

12nF

R204

62k

R206

2k

C203 R203

47nF 33k

R205

7k

Vin=340~390Vdc

R101

0.2Ω

Figure 29. Typical Application Circuit

© 2007 Fairchild Semiconductor Corporation

FSFR series • 1.0.3

14

www.fairchildsemi.com

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