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LX1695
TM ®
Switched Royer CCFL Inverter Monitor IC
P RODUCTION D ATA S HEET
DESCRIPTION
KEY FEATURES
WWW . Microsemi . C OM
The LX1695 is a general purpose DC to PWM generator with supervisory functions for switched Royer CCFL inverter modules used in single or multiple lamp desktop monitors and LCD TV sets. It integrates a PWM that generates digital (burst mode) dimming from a DC brightness control input, and a protection circuit that shuts off the Royer oscillator if lamp ignition does not occur in a timely manner, or in the event of one or more open lamps. Strike and initial open lamp timeout is user programmable with an external RC, and PWM frequency is programmable with a single external resistor.