LXMG1627-12-41

12V双路4W可编程CCFL逆变器模块 12V Dual 4W Programmable CCFL Inverter Module

The LXMG1627-12-4x is a Dual 4W Output Direct Drive™ CCFL Cold Cathode Fluorescent Lamp Inverter Module specifically designed for driving LCD backlight lamps. It is ideal for driving typical 6.4” to 10.4” TFT panels. LXMG1627 modules provide the designer with a vastly superior display brightness range. This brightness range is achievable with virtually any LCD display. The modules are available with 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 5mA to 6.5mA in 0.5mA 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. A 5V input inverter is also available LXMG1627-05-4x, as well as 6W versions LXMG1627-xx-6x for driving large higher voltage/power panels. The module’s design is based on ’s LX6512 backlight controller, which provides a number of cost and performance advantages due to the controller’s high level of integration. Other benefits of this new topology are stable fixed-frequency operation, secondary-side strike-voltage regulation and both open and short protection with fault timeout.