FSDM0465RE_07 FAIRCHILD [Fairchild Semiconductor], FSDM0465RE_07 Datasheet - Page 15

• Manufacturer Part Number: FSDM0465RE_07
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2
© 2006 Fairchild Semiconductor Corporation
Application Information
Features
Key Design Notes
1. Schematic
High efficiency (>81% at 85V
Low zero load power consumption (<300mW at 240V
Low standby mode power consumption (<800mW at 240V
Low component count
Enhanced system reliability through various protection functions
Internal soft-start (10ms)
Resistors R102 and R105 are employed to prevent start-up at low input voltage. After start-up, there is no power
loss in these resistors since the start-up pin is internally disconnected after start-up.
The delay time for overload 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) to be blown and prevents explosion of the opto-cou-
pler (IC301). This zener diode also increases the immunity against line surge.
2KBP06M3N257
5D-9
RT1
Application
LCD Monitor
BD101
1
275VAC
275VAC
220nF
560kΩ
C102
C101
220nF
LF101
R101
23mH
2
4
1W
3
100μF
C103
400V
FUSE
250V
F1
2A
ZD102
10V
Output Power
R102
30kΩ
R105
40kΩ
C106
47nF
50V
AC
40W
input)
R103
56kΩ
2W
5
6
4
FSDM0565RE
NC
FB
V
str
IC1
GND
2
Drain
V
CC
ZD101
Figure 22. Demo Circuit
22V
2.2nF
C104
1kV
1
3
UF 4007
Input Voltage
Universal input
D101
(85-265V
AC
C105
22μF
50V
15
input)
UF4004
AC
D102
input and 0.3W load)
AC
R104
)
5Ω
4
5
1
2
3
EER3016
H11A817A
4.7nF
C301
IC301
T1
Output Voltage (Max. Current)
10
MBRF10100
7
8
MBRF1045
6
D202
1000μF
D201
1000μF
C201
C203
25V
10V
R201
1kΩ
KA431
IC201
1.2kΩ
R202
12V (2.5A)
5V (2.0A)
L201
L202
R203
12kΩ
1000μF
1000μF
C202
C204
25V
10V
C205
47nF
5.6kΩ
5.6kΩ
R204
R205
FSDM0565RE Rev: 00
www.fairchildsemi.com
12V, 2.5A
5V, 2A