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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 can be used to integrate a PWM input.
LX1688 Datasheet
