sg6741tp Fairchild Semiconductor, sg6741tp Datasheet - Page 11

• Manufacturer Part Number: sg6741tp
• Description: Sg6741-highly-integrated Green-mode Pwm Controller
• Manufacturer: Fairchild Semiconductor

Highly-Integrated Green-Mode PWM Controller
REFERENCE CIRCUIT
CIRCUIT (12V/5A)
CN1
CN1
BOM
Reference
BD1
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
D1
D2
D3
F1
L1
Q1
© System General Corp.
Version 1.3.1 (IAO33.0047.B3)
1
2
3
L1
Component
BD 4A/600V
XC 0.68µF/300V
XC 0.1µF/300V
YC 222pF/Y1
EC 120µF/400V
CC 0.01µF/500V
CC 102pF/100V
EC 1000µF/25V
EC 470µF/25V
EC 22µF/50V
CC 470pF/50V
CC 222pF/50V
CC 103pF/50V
Zener Diode 15V 1/2W (option)
BYV95C
FR103
FUSE 4A/250V
900µH
STP20-100CT
C1
C12
T1
1
2
3
4
R3
U1
GND
FB
NC
HV
C2
SG6741
SENSE
GATE
VDD
RI
8
7
6
5
VZ1
R6
C3
+
4
C9
1
D3
C10
BD1
R4
2
Reference
Q2
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
T1
T2
U1
U2
U3
VZ1
1
- 11 -
R5
U2
U3
+
C4
1
R9
R
D2
C11
R8
C5
Q2
R7
R1
R10
R11
VO+
4
5
6
2
3
Component
MOS 7A/600V
R 100Kohm 1/2W
R 47ohm 1/4W
R 100Kohm 1/2W
R 20ohm 1/8W
R 100ohm 1/8W
R 33Kohm 1/8W
R 0.3ohm 2W
R 680ohm 1/8W
R 4.7Kohm 1/8W
R 150Kohm 1/8W
R 39Kohm 1/8W
10mH
600µH(PQ2620)
IC SG6741
IC PC817
IC TL431
VZ 9G
T2
www.sg.com.tw • www.fairchildsemi.com
8
7
1
3
Q1
R2
C6
2
+
C7
Product specification
1
L4
2
October 30, 2007
+
C8
VO+
L2
SG6741
D1
VO+
VO-