SG6859 Ver la hoja de datos (PDF) - Fairchild Semiconductor
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Fabricante
SG6859 Datasheet PDF : 13 Pages
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Low Cost Green-Mode PWM Controller for Flyback Converters
Product Specification
SG6859
REFERENCE CIRCUIT
F1
L
CX1 2
1
L1
BD1
4
C1
2
R1
C2
C3 R3
R5 R4
D4
L2
N
10 T1
1,2 2
1
1
2
R2
9
D1
8
5
U1
1
GND GATE 6
R7
1
Q1
R10
C7
C8
D5
C9
2
FB VDD
5
3
RI SENSE
4
R15
7
3,4
C6
R9
C11
R6
VO
GND
D2
R8 1
2
R11
C4
U2
CY1
R13
R14
C10
U3
1
R12
BOM
Reference
BD1
CX1 (Optional)
CY1 (Optional)
C1
C2
C3
C4
C6
C7 (Optional)
C8
C9
C10
C11
D1
D2
D4
D5 (Optional)
F1
L1
Component
BD 1A/500V
XC 0.1uF
YC 102P/400V (Y1)
CC 103P/500V
EC 10µF/400V 105°C
CC 102P/500V
EC 10µ/50V
CC 472P 0805
CC 102P/100V 1206
EC 470µ/10V 105°C
EC 220µ/10V 105°C
CC 222P 0805
N.C.
Diode FRI07
Diode FR102
Diode SB360
ZD 6.8V 0.5W
R 1Ω/0.5W
20mH 6*8mm
Reference
Component
L2
10uH 6mm
Q1
MOSFET 1A/600V
R1,R2
R 750KΩ 1206
R3,R4
R 47KΩ 1206
R5
R 47Ω 1206
R6
R 4.7Ω 1206
R7
R 100Ω 0805
R8
R 10Ω 1206
R9
R 100KΩ 0805
R10
(Optional) R 10Ω 1206
R11
R 100Ω 1/8W
R12
R 33KΩ 0805
R13
R 33KΩ 1/8W
R14
R 4.7KΩ 0805
R15
R 0Ω 0805
T1
EE-16
U1
IC SG6859
U2
PC817
U3
TL431
© System General Corp.
Version 1.2.1(IAO33.0067.B2)
- 10 -
www.sg.com.tw • www.fairchildsemi.com
September 28, 2007
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