FAN7311_0712 FAIRCHILD [Fairchild Semiconductor], FAN7311_0712 Datasheet - Page 2

• Manufacturer Part Number: FAN7311_0712
• Description: LCD Backlight Inverter Drive IC
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

FAN7311 Rev. 1.0.7
© 2006 Fairchild Semiconductor Corporation
Typical Application Circuits
1. Schematic
2. Transformer Schematic Diagram
- Supported by Namyang electronics (http://www.namyangelec.co.kr)
3. Core & Bobbin
4. Winding Specification
12505WR-10
CN5
Core: EFD2124
Material: PL7
Bobbin: EFE2124
Pin No.
5 --> 2
7 --> 9
1
2
3
4
5
6
7
8
9
10
12V
0
DIM(0~3.3V)
ON/OFF
22kΩ
19-inch LCD Monitor
R4
FUSE
F1
C21
10nF
10kΩ
Application
R24
1 UEW 0.45 φ
1 UEW 0.04 φ
0
REF
0
0
0
18kΩ
C22
220μF
25V
C28
10nF
R2
56kΩ
R3
C9
1μF
Wire
0
OLP
0
0
0
Q1
C1 0.22μF
C2
R7
KST2222
C3
D1
BAW56
1
0Ω
REF
μF
4.7n
IC1
R1
330kΩ
OLP
OLR
ENA
S_S
GND
REF
ADIM
BDIM
EA_IN
EA_OUT
BAW56
D10
BAW56
D11
FAN7311
100kΩ
0
PGND
R8
R14
100kΩ
OUTC
OUTD
OUTB
OUTA
BCT
R20
10kΩ
C18
2.2n
RT1
VIN
CT
RT
Turns
0
Figure 10. Typical Application Circuit
2300
19
C6
C5
R5
C4
Figure 11. Transformer Schematic
C26
R6
OUTB
OUTA
1
OLP3
μF
220pF
27kΩ
4.7nF
R21
10kΩ
C17
2.2n
0.1μF
82kΩ
RT
OLR
0
0
0
0
0
0
0
J1
0
9.1kΩ
RT
OLP4
R9
2.2nF
C19
R22
10kΩ
0
Inductance
0
0
0
R25
10kΩ
R27
10kΩ
R15
10kΩ
Lamps
115 µH
OLP1
2.2nF
R23
10kΩ
C20
1.5 H
FDS8958A
FDS8958A
M1
SN
GN
SP
GP
M2
SN
GN
SP
GP
4
10
0
OLP2
FB
DN
DN
DP
DP
DN
DN
DP
DP
10μF
C7
10μF
C8
0
Leakage Inductance
C25
1μF
OLR
OLR
FAN7311 Rev. 04
TX1
TX2
0
D4
BAV70
C27
1μF
21.5µH
280mH
D3
BAV70
0
0
C10
R26
1kΩ
C12
R12
1kΩ
15pF
15pF
0
0
C14
C29
10nF
10nF
Input Voltage
0
0
R13
1kΩ
C13
R11
1kΩ
C11
15pF
15pF
FB
FB
0
0
C30
C15
10nF
10nF
OLP1
OLP3
13V
0
D6
BAV99
D8
BAV99
0
1
2
1
2
0
0
R16
1kΩ
R18
1kΩ
HOT
COLD
HOT
COLD
Remarks
FAN7311 Rev. 04
1KHz, 1V
1KHz, 1V
LTM190EX
OLP2
OLP4
CN2
CCFL
CN4
CCFL
www.fairchildsemi.com
0
0
D7
BAV99
D9
BAV99
1
2
1
2
0
0
R17
1kΩ
R19
1kΩ
HOT
COLD
HOT
COLD
CN1
CCFL
CN3
CCFL