FAN7318M

FAN7318M Datasheet


FAN7318 LCD Backlight Inverter Drive IC

Part Datasheet
FAN7318M FAN7318M FAN7318M (pdf)
Related Parts Information
FAN7318MX FAN7318MX FAN7318MX
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FAN7318 LCD Backlight Inverter Drive IC

FAN7318

LCD Backlight Inverter Drive IC

March 2009

Features High-Efficiency Single-Stage Power Conversion Wide Input Voltage Range 6V to 30V Backlight Lamp Ballast and Soft Dimming Minimal External Components Required Precision Voltage Reference Trimmed to 2% Half-Bridge Topology Soft-Start PWM Control at Fixed Frequency Analog Dimming Function Burst Dimming Function Programmable Striking Frequency Open-Lamp Protection Open-Lamp Regulation Short-Lamp Protection CMP-High Protection FB-High Protection Thermal Shutdown 20-Pin SOIC

Applications LCD TV LCD Monitor

The FAN7318 is a LCD backlight inverter drive IC that controls P-N half-bridge topology.

The FAN7318 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 FAN7318 is wide, so an external regulator isn’t necessary to supply the voltage to the IC.

The FAN7318 provides various protections, such as open-lamp regulation, open-lamp protection, short-Lamp protection, CMP-high protection, and FB-high protection, to increase the system reliability. The FAN7318 provides burst dimming and analog dimming.

The FAN7318 is available in a 20-SOIC package.
Ordering Information

Operating Temperature

Package

Eco Status

Packing Method

FAN7318M FAN7318MX
-25 to +85°C
20-Lead, Small Outline Integrated Circuit SOIC

Rail Tape & Reel

For Fairchild’s definition of “green” Eco Status, please visit Protected under U.S. patent nos.
2009 Fairchild Semiconductor Corporation FAN7318


FAN7318 LCD Backlight Inverter Drive IC

BDIM

Typical Application Circuit LCD Backlight Inverter

Application
22-Inch LCD Monitor

Device

FAN7318

Input Voltage Range 15V±10%

Number of Lamps

Features High-Efficiency Single-Stage Power Conversion P-N Half-Bridge Topology Reduces Required External Components Enhanced System Reliability through Protection Functions

OLP1 20 OLR1 19 OLP2 18 OLR2 17 OLP3 16 OLP3 15 OLP4 14 OLR4 13

VIN 12 OUTA 11
1 TIMER 2 CMP 3 ADIM 4 CT 5 REF 6 BCT 7 BDIM 8 ENA 9 GND 10 OUTB

Figure Typical Application Circuit
2009 Fairchild Semiconductor Corporation

FAN7318

2009 Fairchild Semiconductor Corporation

FAN7318


FAN7318 LCD Backlight Inverter Drive IC
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Datasheet ID: FAN7318M 513976