RangeMAX™
I N T E G R A T E D P R O D U C T S
LX1688
MULTIPLE LAMP CCFL CONTROLLER
DESCRIPTION
KEY FEATURES
WWW .
Microsemi .
C OM
The LX1688 is a fixed frequency, dual current/voltage mode, switching
regulator that provides the control function for Cold Cathode Fluorescent Lighting (CCFL).
This controller can be used to drive a single lamp, but is specifically designed for multiple lamp LCD panels.
The IC can be configured as a master or slave and synchronize up to 12 controllers.
The LX1688 includes highly integrated universal ‘PWM or DC’ dim input that allows either a PWM or DC input to adjust brightness without requiring external conditioning, since a single external capacitor CPWM...