FAN7318A Datasheet, PDF (1/24 Pages) Fairchild Semiconductor – LCD Backlight Inverter Drive IC

August 2009
FAN7318A
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 (OLP)
ƒ Open-Lamp Regulation (OLR)
ƒ Over-Voltage Protection (OVP)
ƒ Short-Lamp Protection (SLP)
ƒ CMP-High Protection (CHP)
ƒ Thermal Shutdown (TSD)
ƒ 16-Pin SOIC Package
Applications
ƒ LCD TV
ƒ LCD Monitor
Description
The FAN7318A is a LCD backlight inverter drive IC that
controls P-N half-bridge topology.
The FAN7318A provides a low-cost solution and reduces
external components by integrating proprietary wave
rectifiers for open-lamp protection and regulation. The
operating voltage range is wide, so an external regulator
isn’t necessary to supply voltage to the IC.
The FAN7318A provides various protections, such as
open-lamp regulation, over-voltage protection, open-
lamp protection, short-lamp protection, and CMP-HIGH
protection, to increase the system reliability. The
FAN7318A provides burst dimming and analog dimming.
The FAN7318A is available in a 16-SOIC package.
Ordering Information
Part
Number
Operating
Temperature
Package
Eco
Status
Packing
Method
FAN7318AM
FAN7318AMX
-25 to +85°C
16-Lead, Small Outline Integrated Circuit (SOIC)
RoHS
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
FAN7318A • 1.0.0
www.fairchildsemi.com