LXM1614

A M I C R O S E M I
 C O M P A N Y RangeMAX™ LXM1614-14-11 DUAL DIMMING, EXTENDED TEMPEERATURE CCFL INVERTER MODULE P RELIMINARY D ATASHEET
 Dual Drive, RangeMAX Wide Range Dimming, Single Output Inverter. The  
Independent Brightness
W W W . Microsemi . COM LXM1614 series of Direct Drive™ CCFL (Cold Cathode Fluorescent Lamp) Inverter Modules is specifically designed for driving LCD backlight lamps. Although similar to the RangeMAX LXM1612 wide range dimming inverters, the LXM1614 family offers two separate brightness controls for lamp current amplitude and duty cycle. This innovation of dual brightness control with extended dimming, combined with Linfinity’s high efficiency Direct Drive topology, provides the industry’s most feature rich, small form factor inverter available. The wide range dimming provides exceptional display readability at less than 1% of full brightness, allowing both power savings and low ambient light operating capability. The inverters provide brightness adjustments utilizing standard lamp current amplitude control as well as supporting Linfinity’s RangeMAX wide range dimming technique. Combining both brightness controls into a single inverter supports the “self heating” lamp technology by using a “boost” current feature and still offers duty cycle control for low brightness operation. This controlled overdrive capability eliminates the need for traditional resistive heater wire methods to ensure light out...