LX1699

LX1699 www.DataSheet4U.com TM ® High Performance CCFL controller P RODUCTION D ATASHEET DESCRIPTION KEY FEATURES Microsemi Patented Direct Drive TM or Full Bridge Configurable 6.5 to 24 Volts Wide Input Voltage Range Supports Intel TM DPST for System PWM Input Compatible with Microsemi’s New SMBus CCFL Controllers Fully Programmable Open Lamp and Load Fault Time Outs Detects and Shuts Down for all Common Lamp Faults On Chip Full Wave Rectifiers for Lamp Voltage and Current Uses Industry Standard High Voltage Transformers APPLICATIONS Note Book LCD Displays Transportable Computers Web Tablet LCD displays The LX1699 is a high performance, low cost CCFL (Cold Cathode Fluorescent Lamp) controller optimized for wide input voltage range display backlighting applications. The LX1699 has improved lamp current accuracy, fully programmable lamp frequency and burst dimming frequency oscillators, and Microsemi’s patented fullproof lamp strike circuitry. WWW . Microsemi . C OM The LX1699 brightness control Programmable open lamp strike timeout architecture supports Intel’s DPST and open lamp, short lamp, and over (Display Power Saving Technology) that voltage fault detection are fully adjusts the brightness as a function of implemented. video content. Reverse analog dimming control is The controller includes a built-in reference provided to set the lamp current from voltage regulator so it can be operated maximum lamp current to max -1.8mArms directly from the...