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参数资料
| 型号： | FSDM1265RBWDTU |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 14/20页 |
| 文件大小： | 0K |
| 描述： | IC SWIT PWM GREEN CM HV TO220F |
| 标准包装： | 400 |
| 输出隔离： | 隔离 |
| 频率范围： | 60 ~ 72kHz |
| 输入电压： | 8 V ~ 20 V |
| 输出电压： | 650V |
| 功率（瓦特）： | 110W |
| 工作温度： | -50°C ~ 125°C |
| 封装/外壳： | TO-220-6 全封装，成形引线 |
| 供应商设备封装： | TO-220F-6L（成形） |
| 包装： | 管件 |
| 产品目录页面： | 1222 (CN2011-ZH PDF) |
FSDM1265RB
Typical Application Circuit
Application
LCD Monitor
Output Power
62W
Input Voltage
Universal input
(85-265Vac)
Output Voltage (Max. Current)
5V (4.0A)
12V (3.5A)
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 several protection functions
Internal soft-start (10ms)
Key Design Notes
? 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 OLP is designed to be about 50ms with C106 of 47nF. If you require a faster triggering of OLP , reduce
the C106 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 blow and prevents explosion of the opto-coupler (IC301). The zener
diode also increases immunity against a line surge.
1. Schematic
T1
D202
EER3016 MBRF10100
L20
1
12V,
C103
R102
30k ?
R103
56k ?
2W
C104
2.2nF
1kV
D101
1
2
10
8
C201
1000uF
25V
C202
1000u
F
25V
3.5A
200uF
400V
UF 4007
3
BD101
2KBP06M3N257
2
R105
40k ?
IC1
FSDM1265R
1
3
6
Vstr
B
Drain
1
C105
4
C102
220nF
275VA
C
ZD102
10V
C106
47nF
50V
5
NC
4 Vf
b
GND
2
Vcc 3
ZD101
22V
D102
47uF TVR10G
50V
R104
5 ?
4
5
D201
MBRF1045
7
C203
1000uF
10V
6
L20
2
C204
1000u
F
10V
5V, 4A
C301
LF101
4.7nF
23mH
R201
1k ?
R101
560k ?
1W
R202
1.2k ?
R203
12k ?
R204
10k ?
C205
47nF
IC301
RT1
5D-9
C101
220nF
275VA
C
F1
FUSE
250V
2A
H11A817A
IC201
KA431
R205
10k ?
14
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