DM0265RN View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
DM0265RN Datasheet PDF : 20 Pages
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FSDH0265RN, FSDM0265RN
Typical Application Circuit
Application
Output power
DVD Player
13W
Input voltage
Universal input
(85-265Vac)
Output voltage (Max current)
3.3V (0.8A)
5.1V (0.4A)
12V (0.3A)
16V (0.3A)
Features
• High efficiency (>76% at universal input)
• Low standby mode power consumption (<1W at 230Vac input and 0.5W load)
• Low component count
• Enhanced system reliability through various protection functions
• Low EMI through frequency modulation
• Internal soft-start (15ms)
Key Design Notes
• The delay time for over load protection is designed to be about 30ms with C106 of 47nF. If faster/slower triggering of OLP
is required, C106 can be changed to a smaller/larger value(eg. 100nF for about 60ms).
• Using a resistor R104(3.3㏀) on Ipk pin (#4), the pule-by-pulse peak current limit level(ILIM) is adjusted to about 0.8A.
• The branch formed by D103, C108 and R106 provides another ILIM adjustment having a negative slope to the input
voltage. The ILIM value decreases as the input voltage level increases.
1. Schematic
RT101
5D-9
C103
47uF
400V
2
1
BD101
3
4
C102
100nF
AC275V
LF101
55mH
R105
200kΩ
R106
300kΩ
R102
56kΩ
R104
3.3kΩ
C107
47nF
50V
C104
3.3nF
630V
D101
UF 4007
IC101
FSDH0265RN
5 Vstr
4
Ipk
Drain 8
Drain 7
Drain 6
3 Vfb
Vcc 2
GND
1
C106 D102 R103
47uF UF 4004 5Ω
50V
T101
EER2828
1
11
D203
EGP20D
2
10
3
D204
EGP20D
12
D103
UF 4004
4
5
C108
1uF
100V
6
D207
SB360
9
D205
SB360
L203 10uH
C205
470uF
35V
C206
470uF
35V
L205 10uH
C207
470uF
35V
C208
470uF
35V
L207 4.7uH
C213
1000uF
10V
L206 4.7uH
C209
1000uF
10V
16V
12V
5.1V
C214
1000uF
10V
C210
1000uF
10V
3.3V
C101
100nF
AC275V
TNR
F101
FUSE
8
C302
2.2nF
R201
510Ω
IC302
FOD817A
R202
1kΩ
IC301
KA431
R204 C215
20kΩ 100nF
R205
6kΩ
R203
6.2kΩ
14
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