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LXMG1645-12-5X Datasheet(PDF) 1 Page - Microsemi Corporation |
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LXMG1645-12-5X Datasheet(HTML) 1 Page - Microsemi Corporation |
1 / 8 page PRODUCTION DATA SHEET Microsemi Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 Copyright © 2010 Rev. 1.0, 2010-12-23 R Ra an ng ge eM Ma ax x™ ™ S Stta ay yL LIIT T™ ™ LXMG1645-12-5x 12V Quad 5W CCFL Inverter Module TM ® DESCRIPTION The LXMG1645-12-51 and LXMG1645- 12-52 are Quad 5W Output CCFL (Cold Cathode Fluorescent Lamp) Inverter Modules specifically designed for driving 15” to 18”quad lamp LCD panels. The inverters include two dimming inputs that provide brightness control, V_BRITE and P_BRITE. A voltage on V_BRITE pin adjusts the lamp current amplitude with 0V providing maximum brightness. The P_BRITE input accepts a low frequency PWM signal which directly controls the lamp drive waveform. This PWM RangeMAX™ Digital Dimming Technique provides flicker-free brightness control over a wide range (typically 50:1+). The maximum output current is externally programmable using the SET1 and SET2 pins on the input connector over a range of 6mA to 7.5mA in 0.5mA steps. This allows the inverter to be properly matched to a wide array of LCD panel lamp current specifications, a function which we call PanelMatch™. In addition the inverter has a dedicated V_STATUS pin that indicates a fault has occurred such as an open or shorted lamp. V_STATUS is an open drain configuration whose output is low during normal operation. When one or more lamps sustain a fault the other lamp(s) will continue to operate and the V_STATUS pin will toggle high. This mode of operation during lamp(s) failure is called StayLIT™ since the panel is able to still remain on although at reduced brightness. Other benefits of this new topology are stable fixed-frequency operation and secondary-side strike-voltage regulation. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com Protected By U.S. Patents: 5,923,129; 5,930,121; 6,198,234; Patents Pending KEY FEA T URES StayLIT™ Redundancy PanelMatch™ Adjustable Output Current V_STATUS Fault Output Dual Brightness Control Inputs RangeMAX™ Wide Range Dimming Output Short-Circuit Protection and Automatic Strike-Voltage Regulation Fixed Frequency Operation Rated From -30 to 80°C UL 60950 Pending RoHS Compliant APPLICA T IONS High Brightness Displays Desktop Displays Medical Monitors BENEFITS Smooth, Flicker Free 10- 100% Full-Range Brightness Control PRODUCT HIGHLIG HT LXMG1645-12-51 HI HI Lamp Current Programmable from 6mA to 7.5mA per Lamp in 0.5mA Steps Lamp Fault Signal HI HI TWO DIMMING INPUTS - PWM" AND VDC, OR POTENTIOMETER PACKAGE ORDER INFO PART NUMBER OUTPUT CONNECTORS INVERTER MATES DIRECTLY TO PANEL CONNECTORS LXMG1645-12-51 Four JST SM02(8.0) B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-05A00 or equivalent connectors JST BHR-03VS-1 or equivalent connectors LXMG1645-12-52 Four JST SM02B-BHSS-1-TB(LF)(SN) or Yeon Ho 35001WR-02A00 or equivalent connectors JST BHSR-02VS-1 or equivalent connectors |
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