The Microsemi LXMG1626-12-45 12V Dual 6W CCFL Programmable Inverter Module is a CCFL (Cold Cathode Fluorescent Lamp) Inverter Module specifically designed to be compatible with a variety of LCD panels that have both lamps on one side of the panel and use a single common lamp return wire. LXMG1626 modules provide the designer with a 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, a PWM signal or external potentiometer. The maximum output current is externally programmable (through the input connector) at either 10mA or 12mA (5mA or 6mA per lamp). This allows the inverter to match the panel’s lamp current specifications, or it can be used to purposely drive the lamps at a lower or higher current to decrease or increase nominal brightness. The inverter also has a dedicated FAULT pin that indicates an open/shorted lamp condition. In addition when only one of the two lamps in the LCD fails open, the second lamp will continue to operate with a FAULT signal toggling to indicate the failed condition, StayLit™ feature. The RangeMAX™ Digital Dimmer provides continuous dimming from 10% to 100%.
The LXMG1626-12-45 is a Dual 6 W output Direct Drive™ CCFL inverter module designed for LCD panels that share a common lamp return. It offers programmable output current, multiple dimming inputs (DC voltage, PWM, potentiometer) and a dedicated FAULT pin for lamp fault detection. The StayLit™ feature allows the remaining lamp to stay on when one lamp fails open.
Typical applications include dual‑lamp LCD displays, industrial display controls and panels that use a JST BHR‑04VS‑1 connector. The datasheet provides absolute maximum ratings, recommended operating conditions, electrical characteristics, pin functions, physical dimensions and example wiring diagrams for brightness and fault control.
| Output Power | 45 W |
|---|---|
| Operating Ambient Temperature | -30 °C to 80 °C |
| Maximum Output Current (SET pin open) | 12 mA per lamp |
| Maximum Output Current (SET pin grounded) | 10 mA per lamp |
The module accepts a DC voltage source, a PWM signal, or an external potentiometer for brightness control.
Toggle the SLEEP input or cycle the Viy supply to restart the inverter after a fault.
The SET pin can be left open for 12 mA per lamp or grounded for 10 mA per lamp.