FAN7314_07 Datasheet, PDF (2/3 Pages) Fairchild Semiconductor – LCD Backlight Inverter Drive IC

Typical Application Circuit
Application
19 inch LCD Monitor
Lamps
4
Input Voltage
13V
1. Schematic
F1
FUSE
CN5
1
2
13V
3
4
5
6
7
8
9
ON/OFF
10
12505WR-10
0
DIM(0~3.3V)
R24
10kΩ
C22
220μF
25V
0
C28
10nF
0
REF
R2
56kΩ
R4
22kΩ
C21
10nF
0
R3
18kΩ
0
IC1 FAN7314
C26 0.1μF
0
R6 82kΩ
OLP
RT1
RT
OLR
OUTB
OUTB
ENA
C1 0.22μF
0
S_S
OUTA
VIN
OUTA
C6 1μF
0
0
R25
10kΩ
0
C2 1μF
0
GND
REF
PGND
OUTC
R7 0Ω
ADIM
BDIM
OUTD
CT
EA_IN
RT
C3
4.7nF
EA_OUT BCT
R8
0
C5 220pF
0
R5 27kΩ
0
C4 4.7nF ₀
RT
J1
0Ω
0
R27
10kΩ
R15
100kΩ
10kΩ
R9
9.1kΩ
M1
SN
DN
GN
DN
SP
DP
GP
DP
FDS8958A
M2
SN
DN
GN
DN
SP
DP
GP
DP
FDS8958A
FB
OLP
REF
R1
330kΩ
C9
1μF
Q1
KST2222
D1
BAW56
0
R14
100kΩ
0
D11
BAW56
OLR
0
OLP1
R22
10kΩ
OLP2
R23
10kΩ
OLP3
R20
10kΩ
OLP4
R21
10kΩ
D10
BAW56
C18
2.2nF
0
C17
2.2nF
0
C19
2.2nF
0
C20
2.2nF
0
C25
1μF
0
C27
1μF
0
C7
10μF
TX1
C8
10μF
0
OLR
TX2
0
OLR
C10
15pF
LTM190EX
C11
15pF
OLP1
1
HOT
2 _COLD
CN2
CCFL
OLP2
1 _HOT
CN1
CCFL
2 _COLD
D4
BAV70
R26
1kΩ
C14
10nF
C30
R13 10nF
1kΩ
D6
BAV99
R17
1kΩ
D7
BAV99
R16
1kΩ
0
0
0
0
0
0
0
0
FB
C12
15pF
C13
15pF
1 _HOT
2 _COLD
CN4
CCFL
1
HOT
CN3
CCFL
2
COLD
OLP3
OLP4
D3
BAV70
R12
1kΩ
C29
10nF
0
0
R11
C15
1kΩ 10nF
0
0
D8
BAV99
R18
1kΩ
0
0
D9
BAV99
R19
1kΩ
0
0
FB
FAN7314 Rev. 02
2. Transformer Schematic Diagram
Supported by Namyang electronics (http://www.namyangelec.co.kr)
3. Core & Bobbin
„ Core: EFD2124
„ Material: PL7
„ Bobbin: EFE2124
© 2006 Fairchild Semiconductor Corporation
FAN7314 Rev. 1.0.4
FAN7314 Rev. 02
www.fairchildsemi.com
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