www.fairchildsemi.com
FAN7315
LCD Back Light Inverter Drive IC
Features
鈥?Wide Dimming Range
Analog dimming ( 2.5 : 1 )
Burst dimming ( >100 : 1 )
鈥?High Efficiency Single Stage Power Conversion
鈥?Wide Input Voltage Range 7.4V to 20V
鈥?Back Light Lamp Ballast and Soft Dimming
鈥?Few External Components
鈥?Precision Voltage Reference Trimmed to 2%
鈥?ZVS full-bridge topology
鈥?Soft Start
鈥?PWM Control at fixed frequency
鈥?Analog, Burst Dimming Function
鈥?Open Lamp Protection
鈥?Open Lamp Regulation
鈥?Short Lamp Protection
鈥?Thermal Protection
鈥?20 Pin SSOP
Description
The FAN7315 provides all the control functions for a
series parallel resonant converter and also contains a pulse
width modulation (PWM) controller to develop a supply
voltage. Typical operating frequency range is between
30kHz and 250kHz depending on the CCFL and the
transformer's characteristics.
20-SSOP
Rev. 1.0.1
漏2004 Fairchild Semiconductor Corporation