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Microsemi Corporation - CCFL Programmable Inverter Module

Numéro de référence LXMG1645-12-52
Description CCFL Programmable Inverter Module
Fabricant Microsemi Corporation 
Logo Microsemi Corporation 





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LXMG1645-12-52 fiche technique
RangeMax™ StayLIT™ LXMG1645-12-5x
TM ® 12V Quad 5W CCFL Inverter Module
PRODUCTION DATA SHEET
DESCRIPTION
The LXMG1645-12-51 and LXMG1645- This allows the inverter to be properly
12-52 are Quad 5W Output CCFL (Cold matched to a wide array of LCD panel
wCwawt.hDoatdaeSheet4FUl.uneotrescent Lamp) Inverter lamp current specifications, a function
Modules specifically designed for driving which we call PanelMatch™.
15” to 18”quad lamp LCD panels.
In addition the inverter has a
The inverters include two dimming dedicated V_STATUS pin that indicates a
inputs that provide brightness control, fault has occurred such as an open or
V_BRITE and P_BRITE. A voltage on shorted lamp. V_STATUS is an open
V_BRITE pin adjusts the lamp current drain configuration whose output is low
amplitude with 0V providing maximum during normal operation. When one or
brightness. The P_BRITE input accepts a more lamps sustain a fault the other
low frequency PWM signal which directly lamp(s) will continue to operate and the
controls the lamp drive waveform. This V_STATUS pin will toggle high. This
PWM RangeMAX™ Digital Dimming mode of operation during lamp(s) failure
Technique provides flicker-free brightness is called StayLIT™ since the panel is able
control over a wide range (typically 50:1+). to still remain on although at reduced
The maximum output current is brightness.
externally programmable using the SET1 and Other benefits of this new topology
SET2 pins on the input connector over a are stable fixed-frequency operation and
range of 6mA to 7.5mA in 0.5mA steps.
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
PRODUCT HIGHLIGHT
KEY FEATURES
ƒ StayLIT™ Redundancy
ƒ PanelMatch™ Adjustable
Output Current
ƒ V_STATUS Fault Output
ƒ Dual Brightness Control Inputs
ƒ RangeMAX™ Wide Range
Dimming
ƒ Output Short-Circuit Protection
and Automatic Strike-Voltage
Regulation
ƒ Fixed Frequency Operation
ƒ Rated From -30 to 80°C
ƒ UL 60950 Pending
ƒ RoHS Compliant
APPLICATIONS
ƒ High Brightness Displays
ƒ Desktop Displays
ƒ Medical Monitors
BENEFITS
ƒ Smooth, Flicker Free 10-
100% Full-Range Brightness
Control
ƒ
LXMG1645-12-51
TWO DIMMING INPUTS - PWM" AND VDC, OR POTENTIOMETER
Lamp Fault Signal
HI
W HI
HI
HI
W
Lamp Current Programmable from 6mA to 7.5mA per Lamp in 0.5mA Steps
PART NUMBER
LXMG1645-12-51
LXMG1645-12-52
PACKAGE ORDER INFO
OUTPUT CONNECTORS
Four JST SM02(8.0) B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-05A00
or equivalent connectors
Four JST SM02B-BHSS-1-TB(LF)(SN) or Yeon Ho 35001WR-02A00 or
equivalent connectors
INVERTER MATES DIRECTLY
TO PANEL CONNECTORS
JST BHR-03VS-1 or
equivalent connectors
JST BHSR-02VS-1 or
equivalent connectors
Copyright © 2010
Rev. 1.0, 2010-12-23
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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