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FSQ0265RLX Datasheet, PDF (16/21 Pages) Fairchild Semiconductor – Green Mode Fairchild Power Switch (FPS) | |||
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Typical Application Circuit of FSQ0365RN
Application FPS Device
Input Voltage
Range
Rated Output Power
DVD Player
Power Supply
FSQ0365RN
85-265VAC
19W
Features
ï§ High efficiency ( >77% at universal input)
ï§ Low standby mode power consumption (<1W at 230VAC input and 0.5W load)
ï§ Reduce EMI noise through Valley Switching operation
ï§ Enhanced system reliability through various protection functions
ï§ Internal soft-start: 15ms
Output Voltage
(Maximum Current)
5.1V (1.0A)
3.4V (1.0A)
12V (0.4A)
16V (0.3A)
Key Design Notes
ï§ The delay time for overload protection is designed to be about 30ms with C107 of 47nF. If faster/slower triggering
of OLP is required, C107 can be changed to a smaller/larger value (eg. 100nF for 60ms).
ï§ The input voltage of Vsync must be higher than -0.3V. By proper voltage sharing by R106 & R107 resistors, the input
voltage can be adjusted.
ï§ The SMD-type 100nF capacitor must be placed as close as possible to VCC pin to avoid malfunction by abrupt
pulsating noises and to improved surge immunity.
Schematic
RT101
5D-9
C103
33ïF
400V
2
1
BD101
Bridge
3
Diode
4
C102
100nF,275VAC
R105
100kâ¦
LF101
40mH
C101
100nF
275VAC
TNR
10D471K
AC IN
F101
FUSE
R102
56kâ¦
C105
47nF
50V
C104
10nF
630V
R108
62â¦
D101
1N 4007
IC101
FSQ0365RN
5 Vstr
4
Sync
Drain 8
Drain 7
6
Drain
3 FB
Vcc 2
GND
1
C106 C107
100nF 22ïF
SMD 50V
D102
1N 4004
R103
5â¦
R104
12kâ¦
ZD101
1N4746A
C110
33pF
50V
T101
EER2828
C209
47pF
1
11
D201
UF4003
C210
2
47pF
L201
C201
470ïF
35V
L202
C202
470ïF
35V
3
10 D202
C203
C204
UF4003
470ïF
470ïF
35V
35V
12
L203
6
C205
4
D203
SB360
1000ïF
10V
5
9
L204
D204
SB360
C207
1000ïF
10V
16V, 0.3A
12V, 0.4A
5.1V, 1A
C206
1000ïF
10V
C208
1000ïF
10V
3.4V, 1A
8
C302
3.3nF
R201
510â¦
R202
1kâ¦
IC202
FOD817A
IC201
KA431
R204 C209
20k⦠100nF
R203
6.2kâ¦
R205
6kâ¦
FSQ0365RN Rev:00
Figure 29. Demo Circuit of FSQ0365RN
© 2007 Fairchild Semiconductor Corporation
FSQ0365, FSQ0265, FSQ0165, FSQ321 ⢠Rev. 1.0.6
16
www.fairchildsemi.com
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