FAN7314_07 [FAIRCHILD]
LCD Backlight Inverter Drive IC; LCD背光逆变器驱动IC
| 型号： | FAN7314_07 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | LCD Backlight Inverter Drive IC |
| 文件： | 总3页 (文件大小：248K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
October 2007
FAN7314
LCD Backlight Inverter Drive IC
Features
Description
High-Efficiency Single-Stage Power Conversion
Wide Input Voltage Range: 5V to 25.5V
Back Light Lamp Ballast and Soft Dimming
Reduces Number of Required External Components
Precision Voltage Reference Trimmed to 2%
ZVS Half-Bridge Topology
The FAN7314 provides all the control functions for a
series parallel resonant converter as well as a pulse
width modulation (PWM) controller to develop a supply
voltage. Typical operating frequency range is between
30kHz and 250kHz, depending on the CCFL and the
transformer's characteristics.
Soft Start
PWM Control at Fixed Frequency
Analog and Burst Dimming Function
Programmable Striking Frequency
Open-Lamp Protection
20-SOIC
Open-Lamp Regulation
20-Pin SOIC
Ordering Information
Part Number
FAN7314M
Package
20-SOIC
20-SOIC
Operating Temperature Range
-25°C ~ 85°C
Packing Method
Rail
FAN7314MX
Tape & Reel
All packages are lead free per JEDEC J-SDD-020B standard.
Protected by U.S. Patent: 5,652,479.
© 2006 Fairchild Semiconductor Corporation
FAN7314 Rev. 1.0.4
www.fairchildsemi.com
Typical Application Circuit
Application
Lamps
Input Voltage
19 inch LCD Monitor
4
13V
1. Schematic
F1
FUSE
C22
220μF
25V
C25
1μF
C27
1μF
CN5
C26 0.1μF
R6 82kΩ
IC1
FAN7314
0
0
0
0
1
2
3
4
5
6
7
8
M1
13V
OLP
RT1
OUTB
OUTA
VIN
0
RT
SN
GN
SP
DN
OUTB
OLR
DN
DP
DP
C7
10μF
OUTA
9
10
ON/OFF
LTM190EX
ENA
R25
10kΩ
R24
10kΩ
C1 0.22μF
C6 1μF
TX1
C28
10nF
1
2
0
0
0
S_S
0
0
HOT
12505WR-10
GP
C8
10μF
CN1
CCFL
0
FDS8958A
M2
GND
REF
PGND
OUTC
OUTD
CT
J1
0Ω
0
COLD
C2
1μF
REF
1
2
DIM(0~3.3V)
HOT
0
CN2
CCFL
SN
GN
SP
DN
DN
DP
DP
R2
56kΩ
ADIM
BDIM
EA_IN
EA_OUT
0
COLD
R7
0Ω
C10
15pF
C11
15pF
C5
R5
C4
220pF
27kΩ
4.7nF
0
0
0
R4
22kΩ
OLP1
OLP2
C21
R27
10kΩ
R3
18kΩ
RT
10nF
GP
BCT
FDS8958A
D4
BAV70
D6
D7
BAV99
0
0
OLR
C3
4.7nF
C14
10nF
C30
10nF
BAV99
R26
1kΩ
R13
1kΩ
R17
1kΩ
R16
1kΩ
RT
R8
R15
FB
0
0
0
0
0
0
0
0
100kΩ
10kΩ
R9
9.1kΩ
FB
TX2
1
HOT
OLR
0
CN3
CCFL
R14
REF
100kΩ
2
COLD
OLP1
OLP2
1
2
HOT
R1
330kΩ
R22
10kΩ
R23
10kΩ
0
OLP
CN4
CCFL
0
C12
15pF
C13
15pF
COLD
D11
BAW56
C9
1μF
Q1
KST2222
OLP3
OLP4
OLP3
OLP4
C19
C20
D1
BAW56
2.2nF
2.2nF
R20
R21
10kΩ
10kΩ
D3
BAV70
D8
D9
0
0
OLR
BAV99
BAV99
R12
1kΩ
C29
10nF
R11
1kΩ
C15
10nF
R18
1kΩ
R19
1kΩ
D10
BAW56
0
0
0
0
0
0
0
0
0
C18
C17
2.2nF
2.2nF
0
0
FB
FAN7314 Rev. 02
2. Transformer Schematic Diagram
Supported by Namyang electronics (http://www.namyangelec.co.kr)
FAN7314 Rev. 02
3. Core & Bobbin
Core: EFD2124
Material: PL7
Bobbin: EFE2124
© 2006 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN7314 Rev. 1.0.4
10
© 2006 Fairchild Semiconductor Corporation
FAN7314 Rev. 1.0.4
www.fairchildsemi.com
14
相关型号：
©2020 ICPDF网 联系我们和版权申明