DM0565R データシートの表示（PDF） - Fairchild Semiconductor

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DM0565R

Green Mode Fairchild Power Switch (FPS)

Fairchild Semiconductor 

FSDM0565R

Typical application circuit

Application

LCD Monitor

Output power

40W

Input voltage

Universal input

(85-265Vac)

Output voltage (Max current)

5V (2.0A)

12V (2.5A)

Features

• High efficiency (>81% at 85Vac input)

• Low zero load power consumption (<300mW at 240Vac input)

• Low standby mode power consumption (<800mW at 240Vac input and 0.3W load)

• Low component count

• Enhanced system reliability through various protection functions

• Internal soft-start (10ms)

Key Design Notes

• Resistors R102 and R105 are employed to prevent start-up at low input voltage. After startup, there is no power loss in these

resistors since the startup pin is internally disconnected after startup.

• The delay time for over load protection is designed to be about 50ms with C106 of 47nF. If a faster triggering of OLP is

required, C106 can be reduced to 10nF.

• Zener diode ZD102 is used for a safety test such as UL. When the drain pin and feedback pin are shorted, the zener diode

fails and remains short, which causes the fuse (F1) blown and prevents explosion of the opto-coupler (IC301). This zener

diode also increases the immunity against line surge.

1. Schematic

BD101

2

2KBP06M3N257

1

4

C102

220nF

275VAC

C103

100uF

400V

3

R102

30kΩ

R105

40kΩ

ZD102

10V

C106

47nF

50V

R103

56kΩ

2W

C104

2.2nF

1kV

IC1

FSDM0565R

6 Vstr

Drain 1

5

NC

4 Vfb

Vcc 3

GND

2 ZD101

22V

D101

UF 4007

T1

D202

EER3016 MBRF10100

1

10

C201

1000uF

25V

2

8

3

4

C105 D102 R104

22uF TVR10G 5Ω

50V

5

D201

MBRF1045

7

C203

1000uF

10V

6

L201

C202

1000uF

25V

L202

C204

1000uF

10V

LF101

23mH

R101

560kΩ

1W

RT1

5D-9

C101

220nF

275VAC

F1

FUSE

250V

2A

C301

4.7nF

R201

1kΩ

IC301

H11A817A

R202

1.2kΩ

IC201

KA431

R203

12kΩ

R204

5.6kΩ

C205

47nF

R205

5.6kΩ

12V, 2.5A

5V, 2A

14

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