Inverter Module. LXMG1645-12-5x Datasheet

LXMG1645-12-5x Module. Datasheet pdf. Equivalent

Part LXMG1645-12-5x
Description CCFL Programmable Inverter Module
Feature RangeMax™ StayLIT™ TM ® LXMG1645-12-5x 12V Quad 5W CCFL Inverter Module P RODUCTION D ATA S HEET .
Manufacture Microsemi Corporation
Total Page 8 Pages
Datasheet
Download LXMG1645-12-5x Datasheet



LXMG1645-12-5x
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
Page 1



LXMG1645-12-5x
RangeMax™ StayLIT™ LXMG1645-12-5x
TM ® 12V Quad 5W CCFL Inverter Module
PRODUCTION DATA SHEET
ABSOLUTE MAXIMUM RATINGS
Input Signal Voltage (VIN, ENABLE )......................................................................................................................-0.3V to 15V
Input Signal Voltage (V_STATUS with Series Resistor) ........................................................................................-0.3V to 30V
Input Power .................................................................................................................................................................... 26.4W
Output Voltage, No Load ...........................................................................................................................................1900VRMS
Output Current (Each Output) ........................................................................................................................................ 9.0mA
Output Power (Each Output) ............................................................................................................................................ 6.0W
Input Signal Voltage (V_BRITE, P_BRITE, SET1, SET2).....................................................................................-0.3V to 5.5V
Ambient Operating Temperature, Zero Airflow ................................................................................................... -30°C to 85°C
Operating Relative Humidity, Non-Condensing ..................................................................................................... 0% t o 95%
Storage Temperature Range.............................................................................................................................. -40°C to 90°C
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified terminal.
RECOMMENDED OPERATING CONDITIONS (R.C.)
This module has been designed to operate over a wide range of input and output conditions. However, best efficiency and performance
will be obtained if the module is operated under the condition listed in the ‘R.C.’ column. Min. and Max. columns indicate values beyond
which the inverter, although operational, may not function optimally.
Parameter
Input Supply Voltage Range (Fully Regulated
Lamp Current)
Output Power (Each Output)
Symbol
VIN
PO
Recommended Operating Conditions
Min R.C. Max
10.8 12 13.2
3.6 5.5
Units
V
W
DC BRITE Control Input Voltage Range
VBRT
0
2.5 V
Duty Control Range
FDUTY
10
100
Direct Low Frequency
PWM
Burst Frequency1
Amplitude
FPWM
100
120
250
VPWM
3.0
5.5
%
Hz
V
Rise/Fall Time
tr, tf 0
3 µs
Lamp Current (Full Brightness)
IO100
6
7.5 mARMS
Lamp Operating Voltage
VLAMP
510
600
690
VRMS
Operating Ambient Temperature Range
TA -20
80 °C
Operating Humidity Range ( Non-condensing)
RHA
0
95 %
1 Direct Low Burst PWM frequency should be selected such to not have optical interference. At input voltages below 12V the inverter may not be able to output the
full 7.5mARMS at the maximum lamp voltage.
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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