LXM1624-12-4X

PanelMatch™ I N T E G R A T E D P R O D U C T S LXM1624-12-4x P RODUCTION D ATASHEET www.DataSheet4U.com 12V Dual 4W CCFL Programmable Inverter Module DESCRIPTION KEY FEATURES WWW . Microsemi . C OM The LXM1624-12-4x 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. 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 5 to 6.5mA in 0.5mA steps to allow the inverter to properly match to a wide array of LCD panel lamp current specifications. LXM1624 modules unlike the LXM1623 series does not provide wide range ‘burst’ mode dimming, rather dimming is provided by amplitude control of the output current waveform, this limits the potential dim range to typically less than 5:1. For applications not requiring wide range dimming, amplitude control results in lower ripple on the input supply and reduced potential transient noise generation. Many STN type panels are particularly well suited for current amplitude dimming. 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 modules design is based on Microsemi’s new LX1689 backlight controller, which provid...