The LXMG1643-12-61 is a Quad 6W Output Direct Drive™ CCFL (Cold Cathode Fluorescent Lamp) Inverter Module specifically designed for driving

LCD backlight lamps. It is ideal for driving typical 12.1” to 18.1” TFT panels.

LXMG1643 modules provides the designer with a vastly superior display

brightness range then typical with analog (amplitude control) dimming.

The inverter includes a dimming input that permits brightness control from either

a DC voltage source or a PWM signal or external Potentiometer. The maximum

output current is externally programmable over a range of 10 to 16mA (per lamp pair)

in 2mA steps to allow the inverter to properly match to a wide array of LCD

panel lamp current specifications.

RangeMAX Digital Dimming Technique provides flicker-free brightness control in any wide range typically (50:1+) dimming application.

The resultant “burst drive” that energizes the lamp was designed

specifically to ensure that no premature lamp degradation occurs, while allowing

significant power savings at lower dim levels.

The modules convert DC voltage from the system battery or AC adapter directly

to high frequency, high-voltage waves required to ignite and operate CCFL

lamps.

The LXMG1643-12-61 inverter is intended for panel assemblies where lamp

pairs share close proximity with one another. The LXMG1643-12-62 inverter

should be considered for panel applications with individual lamp connections or where lamps are spaced well apart from each other.

Other benefits of this new topology are stable fixed-frequency operation,

secondary-side strike-voltage regulation and both open/shorted lamp protection

with fault timeout.

ƒExternally Programmable Maximum Output Current

ƒ Easy to Use Brightness Control

ƒ RangeMAX Wide Range Dimming

ƒ Output Short-Circuit Protection and Automatic Strike-Voltage Regulation and Timeout

ƒ Fixed Frequency Operation

ƒ Rated From -20 to 70°Cƒ UL 60950 E175910 ƒRoHS Compliant