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FAN7318B の電気的特性と機能

FAN7318BのメーカーはFairchild Semiconductorです、この部品の機能は「LCD Backlight Inverter Drive IC」です。


製品の詳細 ( Datasheet PDF )

部品番号 FAN7318B
部品説明 LCD Backlight Inverter Drive IC
メーカ Fairchild Semiconductor
ロゴ Fairchild Semiconductor ロゴ 




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FAN7318B Datasheet, FAN7318B PDF,ピン配置, 機能
August 2009
FAN7318B
LCD Backlight Inverter Drive IC
Features
ƒ High-Efficiency Single-Stage Power Conversion
ƒ Wide Input Voltage Range: 6V to 30V
ƒ Backlight Lamp Ballast and Soft Dimming
ƒ Minimal External Components Required
ƒ Precision Voltage Reference Trimmed to 2%
ƒ Half-Bridge Topology
ƒ Soft-Start
ƒ PWM Control at Fixed Frequency
ƒ Analog Dimming Function
ƒ Burst Dimming Function
ƒ Programmable Striking Frequency
ƒ Open-Lamp Protection
ƒ Open-Lamp Regulation
ƒ Over-Voltage Protection
ƒ Short-Lamp Protection
ƒ CMP-High Protection
ƒ Thermal Shutdown
www.DataSƒheet24U0-.cPoinmSOIC
Applications
ƒ LCD TV
ƒ LCD Monitor
Description
The FAN7318B is a LCD backlight inverter drive IC that
controls P-N half-bridge topology.
The FAN7318B provides a low-cost solution and reduces
external components by integrating proprietary wave
rectifiers for open-lamp protection and regulation. The
operating voltage range of the FAN7318B is wide, so an
external regulator isn’t necessary to supply the voltage to
the IC.
The FAN7318B provides various protections, such as
open-lamp regulation, over-voltage protection, open-
lamp protection, short-Lamp protection, CMP-high
protection, to increase the system reliability. The
FAN7318B provides burst dimming and analog dimming.
The FAN7318B is available in a 20-SOIC package.
Ordering Information
Part
Number
Operating
Temperature
Package
FAN7318BM
FAN7318BMX
-25 to +85°C
20-Lead, Small Outline Integrated Circuit (SOIC)
Eco
Status
RoHS
Packing
Method
Rail
Tape & Reel
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Protected under U.S. patent no. 5,652,479.
© 2009 Fairchild Semiconductor Corporation
FAN7318B • 1.0.0
www.fairchildsemi.com

1 Page





FAN7318B pdf, ピン配列
Pin Configuration
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
www.DataSheet4U.com
Figure 2. Package Diagram
© 2009 Fairchild Semiconductor Corporation
FAN7318B • 1.0.0
3
www.fairchildsemi.com


3Pages


FAN7318B 電子部品, 半導体
Electrical Characteristics
For typical values, TA=25°C, VIN=15V, and -25°C TA 85°C, unless otherwise specified. Specifications to -25°C ~
85°C are guaranteed by design based on final characterization results.
Symbol
Parameter
Test Conditions
Under-Voltage Lockout Section (UVLO)
Vth Start Threshold Voltage
Vthhys
Start Threshold Voltage Hysteresis
Ist Startup Current
Iop Operating Supply Current
ON/OFF Section
Increase VIN
Decrease VIN
VIN=4.5V
VIN=15V, Not Switching
Von On-State Input Voltage
Voff Off-State Input Voltage
Isb Standby Current
ENA=0V
RENA
Pull-Down Resistor
ENA=2V
Reference Section (Recommend 1µF X7R Capacitor)
V5 5V Regulation Voltage
V5line
5V Line Regulation
V5load
5V Load Regulation
Oscillator Section (Main)
6 VIN 30V
10µA I5 3mA
fosc Oscillation Frequency
TA=25°C, CT=220pF,
RT=100k
CT=220pF, RT=100k
TA=25°C, CT=220pF,
fstr Oscillator Frequency in Striking Mode RT=100k
CT=20pF, RT=100k
www.DataSheet4IUct.dccos m
Ictdc
CT Discharge Current
Ictcs CT Charge Current
Vcth CT High Voltage
Vctl CT Low Voltage
Oscillator Section (Burst)
Striking
Normal
Striking
foscb Burst Oscillation Frequency
Ibctdc
Vbcth
Vbctl
BCT Discharge current
BCT High Voltage
BCT Low Voltage
TA=25°C, BCT=4.7nF,
BRT=1.4M
BCT=4.7nF,
BRT=1.4M
Min.
4.9
0.20
10
0.5
1.4
50
120
4.9
101.3
101
126.5
126
1.03
770
-15
321
317
20
Typ. Max.
5.2 5.5
0.45 0.60
70 100
2.0 3.5
5.0
0.7
120 190
200 280
5.0 5.1
4 50
4 50
105.0
105
131.0
131
1.18
870
-12
2
0.45
108.3
109
135.5
136
1.33
970
-9
330 342
330 343
26 32
2
0.5
Unit
V
V
µA
mA
V
V
µA
k
V
mV
mV
kHz
kHz
mA
μA
μA
V
V
Hz
μA
V
V
Continued on the following page…
© 2009 Fairchild Semiconductor Corporation
FAN7318B • 1.0.0
6
www.fairchildsemi.com

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
FAN7318

LCD Backlight Inverter Drive IC

Fairchild Semiconductor
Fairchild Semiconductor
FAN7318A

LCD Backlight Inverter Drive IC

Fairchild Semiconductor
Fairchild Semiconductor
FAN7318B

LCD Backlight Inverter Drive IC

Fairchild Semiconductor
Fairchild Semiconductor


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