FAN7547A
LCD Backlight Inverter Drive IC
February 2007
Features
Backlight Lamp Ballast and Soft Dimming
Reduced Number of Components
Wide Range of Operating Voltage (6 to 30V)
Precision Voltage Reference Reduced to 3.4%
Low Standby Current (Typically 50µA)
Soft-Start Function
PWM Control
Analog, Mixed, and PWM Dimming Function
P-Channel MOSFET Drive
Open-Lamp Protections (OLP)
Shutdown Protections (SDP)
14-Pin SOP
Description
The FAN7547A provides all control functions for a
current-fed, push-pull, self-oscillation type converter and
also contains a pulse-width-modulated (PWM) controller
to develop a supply voltage. Typical operating frequency
range is from 30kHz to 100kHz, depending on the cold
cathode fluorescent lamp (CCFL) and the transformer's
characteristics.
14-SOP
Ordering Information
Part Number
FAN7547AM
FAN7547AMX
Package
14-SOP
Pb-Free
Yes
Operating Temperature Range Packing Method
-25°C ~ +85°C
Tube
Tape & Reel
© 2005 Fairchild Semiconductor Corporation
FAN7547A Rev. 1.0.3
www.fairchildsemi.com