參數(shù)資料
型號(hào): FSDH0265RL_NL
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: 8 A SWITCHING REGULATOR, 108 kHz SWITCHING FREQ-MAX, PDSO8
封裝: LEAD FREE, SOP-8
文件頁(yè)數(shù): 6/23頁(yè)
文件大?。?/td> 1073K
代理商: FSDH0265RL_NL
FSDH0265RN, FSDM0265RN
14
Typical Application Circuit
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
Application
Output power
Input voltage
Output voltage (Max current)
DVD Player
13W
Universal input
(85-265Vac)
3.3V (0.8A)
5.1V (0.4A)
12V (0.3A)
16V (0.3A)
3
4
C102
100nF
AC275V
LF101
55mH
C101
100nF
AC275V
F101
FUSE
C103
47uF
400V
R102
56k
C104
3.3nF
630V
D101
UF 4007
IC101
FSDH0265RN
C107
47nF
50V
C106
47uF
50V
D102
UF 4004
R103
5
1
2
3
4
5
8
9
6
12
10
11
T101
EER2828
D203
EGP20D
C205
470uF
35V
C206
470uF
35V
L203 10uH
L207 4.7uH
L206 4.7uH
D204
EGP20D
C207
470uF
35V
C208
470uF
35V
C214
1000uF
10V
C213
1000uF
10V
D207
SB360
D205
SB360
C209
1000uF
10V
C210
1000uF
10V
R201
510
R202
1k
R203
6.2k
R204
20k
C215
100nF
R205
6k
IC302
FOD817A
BD101
L205 10uH
Vstr
Ipk
Vfb
Vcc
Drain
GND
6
1
2
3
4
5
1
2
Drain
7
8
IC301
KA431
16V
R104
3.3k
TNR
R105
200k
R106
300k
D103
UF 4004
C108
1uF
100V
C302
2.2nF
12V
5.1V
3.3V
RT101
5D-9
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