fs8s0765rcb Fairchild Semiconductor, fs8s0765rcb Datasheet - Page 14

• Manufacturer Part Number: fs8s0765rcb
• Description: 7a/650v Snychronized Power Switch, Primary Side Regulation
• Manufacturer: Fairchild Semiconductor

FS8S0765RCB Rev. 1.0.2
Typical Application Circuit
1. 80W Universal Input Power Supply For CRT Monitor
2. Transformer Schematic Diagram
RT101
1
Line Filter: LF101
4.7nF
C103
100nF
C102
C101
TNR
C105
100nF
F101
FUSE
C104
4.7nF
BD101
3
C114
1nF
Np : 40T
Nvcc : 12T
Nreg : 3T
220μF/400V
C106
R104
2.2K
+
C110
1μF/50V
22μF/50V
+
0
C108
1
4
6
7
8
Lm : 420uH
+
0
600K
R103
R102
3.3
C109
47nF
R105
560
5
4
3
FS8S0765RCB
IC101
S/S
Vfb
Vcc
2N3904
10nF/630V
Drain
C107
GND
ZD101
6.2VZD
16
15
14
13
12
11
10
100
R106
9
1
2
56K/2W
R101
C111
0.1μF
Nvo1 : 10T
Nvo2 : 22T
Nvo3 : 6T
Nvo4 : 5T
Nvo5 : 3T
D101
C115
1nF
+
C112
47μF/16V
D103
D102
14
1N4148
0
C113
1μF
1
2
3
4
6
8
7
T1
C301
4.7nF
Sync trans
C302
4.7nF
R201
0.1K
0.1μF
16
15
14
13
12
11
10
9
KSC945
D202
D204
D205
D201
D203
R202
4k
R203
0.7k
Hsync_O
+
+
+
+
+
Off
signal
C207
1000μF/25V
C201
C203
C205
C209
1000μF/16V
22μF/160V
47μF/100V
1000μF/25V
Micro
controller
On --> normal mode:
Off --> off mode
L204
L201
L202
L203
L205
DC5
V
+
+
+
+
+
C202
22μF/160V
C208
www.fairchildsemi.com
1000μF/25V
C204
47μF/100V
C206
1000μF/25V
C210
1000μF/16V
Regulator ouput_5V
80V
50V
14V
-14V
6.5V