FAN7316_08 [FAIRCHILD]
LCD Backlight Inverter Drive IC; LCD背光逆变器驱动IC
| 型号： | FAN7316_08 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | LCD Backlight Inverter Drive IC |
| 文件： | 总3页 (文件大小：429K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
January 2008
FAN7316
LCD Backlight Inverter Drive IC
Features
Description
The FAN7316 is a LCD backlight inverter drive IC that
controls N-N half-bridge topology. The FAN7316 can
also drive push-pull topology.
High-Efficiency Single-Stage Power Conversion
Wide Input Voltage Range: 4.5V to 24V
Backlight Lamp Ballast and Soft Dimming
Reduces Required External Components
Precision Voltage Reference Trimmed to 2%
N-N Half-Bridge Topology
The FAN7316 provides a low-cost solution by integrating
the external open-lamp protection circuit. The operating
voltage of the FAN7316 is wide, so the FAN7316 doesn’t
need an external regulator to supply the voltage to the
IC. The FAN7316 has the internal bootstrap driver, so
the external fast recovery diode can be avoided.
PWM Control at Fixed Frequency
Analog and Burst Dimming Function
Selectable Burst Dimming Polarity by ADIM Voltage
Striking Frequency Depending on Normal
Frequency
The FAN7316 provides various protections, such as
open-lamp regulation, arc protection, open-lamp
protection, short-circuit protection, and CMP-high
protection to increase the system reliability. The
FAN7316 provides analog dimming, burst dimming, and
burst dimming polarity selection functions.
Open-Lamp Protection
Open-Lamp Regulation
Short-Circuit Protection
The FAN7316 is available in a 20-SOIC package.
20-Pin SOIC
Applications
LCD TV
LCD Monitor
Ordering Information
Part Number
Package
Operating Temperature
Packing Method
FAN7316M
20-SOIC
20-SOIC
-25 to +85°C
-25 to +85°C
RAIL
FAN7316MX
TAPE & REEL
All packages are lead free per JEDEC: J-STD-020B standard.
Protected under U.S. patent number 5,652,479.
© 2007 Fairchild Semiconductor Corporation
FAN7316 • 1.0.1
www.fairchildsemi.com
Typical Application Circuit (LCD Backlight Inverter)
Application
Device
Input Voltage Range
Number of lamps
19-Inch LCD Monitor
FAN7316
14.5±10%
4
1. Features
High-Efficiency Single-Stage Power Conversion
N-N Half-Bridge Topology
Reduces Required External Components
Enhanced System Reliability through Protection Functions
F1
CN2
35001WR-02A
LTM190EX
TX1
1
FUSE
C1
330u
C2
1u
C3
1u
1
CN1
0
2
35001WR-02A
2
0
0
1
0
0
0
1
OLP3 OLP4 OLR
C9
0
C8
3p
3p
2
C6
1u
2
C5
R1
R24
0R
R2
R3
10n 30k
OLP4
OLP3
100k 100k
R4
C10
R5
10k
C11
M1
D2
10k
2.7n
2.7n
BAV70
CN5
SN1
DN1
DN1
DN2
DN2
R6
680
R7
680
0
0
0
0
1
2
3
4
5
6
7
8
9
10
IC1
R31
D3
BAV70
15V
GN1
SN2
GN2
10R
0
C4 10u
C7 10u
CN4
0
0
FAN7316
35001WR-02A
DIM(0~3.3V)
ON/OFF
R30
TX2
1
1
10R
CN3
AOP800
2
35001WR-02A
2
12505WR-10
1
0
1
R8
R9
0
100k 100k
R25
N.C.
C15
3p
C16
3p
0
2
C12
33n
2
OLP2
OLP1
R22
0R
OLP1 OLP2
REF
C13
1u
R27
10k
R14 C18
10k 2.7n
R15 C19
10k 2.7n
0
R13
100k
R29
D4
0
BAV70
C23 R23
N.C. N.C.
0
OLR
R10
12k
R12
75k
R17
680
R16
680
0
0
0
0
D5
BAV70
R18
0
0
100k
C21
R11
4.7n
0
0
C14
9.1k
0.1u
0
0
R28
0
0
R20
10k
20k
R21
C20
1n
R19
10k
C17
10n
20k
0
0
0
Figure 47. Typical Application Circuit
2. Transformer Schematic Diagram
Figure 48. Transformer Schematic Diagram
3. Core & Bobbin
Core: EFD2126
Material: PL7
Bobbin: EFD2126
© 2007 Fairchild Semiconductor Corporation
FAN7316 • 1.0.1
www.fairchildsemi.com
18
© 2007 Fairchild Semiconductor Corporation
FAN7316 • 1.0.1
www.fairchildsemi.com
21
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