FAN7318 Datasheet, PDF (1/3 Pages) Fairchild Semiconductor – LCD Backlight Inverter Drive IC

FAN7318
LCD Backlight Inverter Drive IC
March 2009
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 Short-Lamp Protection
ƒ CMP-High Protection
ƒ FB-High Protection
ƒ Thermal Shutdown
ƒ 20-Pin SOIC
Applications
ƒ LCD TV
ƒ LCD Monitor
Description
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
Part
Number
Operating
Temperature
Package
Eco
Status
Packing
Method
FAN7318M
FAN7318MX
-25 to +85°C
20-Lead, Small Outline Integrated Circuit (SOIC)
RoHS
Rail
Tape & Reel
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Protected under U.S. patent nos. 5,652,479.
© 2009 Fairchild Semiconductor Corporation
FAN7318 • 1.0.0
www.fairchildsemi.com