Inverter Module. LXMG1645-12-53 Datasheet

LXMG1645-12-53 Module. Datasheet pdf. Equivalent

Part LXMG1645-12-53
Description CCFL Programmable Inverter Module
Feature RangeMax™ StayLIT™ TM ® LXMG1645-24-53 24V Quad 5W CCFL Inverter Module P RODUCTION D ATA S HEET .
Manufacture Microsemi Corporation
Total Page 7 Pages
Datasheet
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LXMG1645-12-53
RangeMax™ StayLIT™ LXMG1645-24-53
TM ® 24V Quad 5W CCFL Inverter Module
PRODUCTION DATA SHEET
DESCRIPTION
The LXMG1645-24-53 is a Quad 5W significant power savings at lower dim
Output CCFL (Cold Cathode Fluorescent levels.
wwwL.DamatapS)heet4IUn.vneetrter Module specifically The inverter also has a dedicated
designed for driving NEC NL12876BC26- FAIL pin that indicates an open/shorted
25 LCD panel or similar quad lamp panels. lamp condition. In addition when only
The inverter includes a dimming input one or two lamps on either side sustain a
that permits brightness control from a fault the lamps on the other side will
PWM signal. RangeMAX™ Digital remain in normal operation. This mode
Dimming Technique provides flicker-free of operation during lamp(s) failure is
brightness control in any wide range called StayLit™ since the panel is able to
(typically 50:1+) dimming application. still remain on although at reduced
The module converts a DC voltage brightness.
from the system battery or AC adapter The module’s design is based on
directly to high frequency, high-voltage Microsemi’s LX6512 backlight
waves required to ignite and operate CCFL controller, which provides a number of
lamps. The resultant “burst drive” that cost and performance advantages due to
energizes the lamp was designed the controller’s high level of integration.
specifically to ensure that no premature Other benefits of this new topology
lamp degradation occurs, while allowing 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
PRODUCT HIGHLIGHT
Lamp
Fault
HI Signal
CN1
KEY FEATURES
ƒ StayLIT™ Redundancy
ƒ PWM Brightness Control
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 2%-
100% Optical Brightness
Range
ƒ
HI
CN3
CN2
HI
PWM DIMMING INPUT
MICROSEMI
HI
CN4
W
CN5
W
PART NUMBER
LXMG1645-24-53
PACKAGE ORDER INFO
OUTPUT CONNECTORS
Four JST SM02(8.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-05A00
INVERTER MATES DIRECTLY
TO PANEL CONNECTORS
JST BHR-03VS-1
Copyright © 2010
Rev. 1.0, 2010-10-13
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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LXMG1645-12-53
RangeMax™ StayLIT™ LXMG1645-24-53
TM ® 24V Quad 5W CCFL Inverter Module
PRODUCTION DATA SHEET
ABSOLUTE MAXIMUM RATINGS
Input Signal Voltage (VIN, FAIL )............................................................................................................................-0.3V to 30V
Input Power ....................................................................................................................................................................... 24W
Output Voltage, no load.............................................................................................................................................1900VRMS
Output Current(each output)........................................................................................................................................... 9.0mA
Output Power(each output) ................................................................................................................................................. 5W
Input Signal Voltage (ENABLE, PWM) .................................................................................................................-0.3V to 5.5V
Ambient Operating Temperature, zero airflow.................................................................................................... -30°C to 80°C
Operating Relative Humidity, Non-condensing........................................................................................................ 0% to 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)
DC BRITE Control Input Voltage Range
Duty Control Range
Direct Low Frequency
PWM
Burst Frequency1
Amplitude
Rise/Fall Time
Lamp Current (Full Brightness)2
Lamp Operating Voltage
Symbol
VIN
PO
VBRT
FDUTY
FPWM
VPWM
Tr, Tf
IOLAMP
VLAMP
Recommended Operating Conditions
Min R.C. Max
21.6 24 26.4
4.0 5.0
0 3.0
10 100
100 120 225
3.0 5.5
03
5.5 6.0 6.5
530 625 720
Units
V
W
V
%
Hz
V
µS
mARMS
VRMS
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of 0°C
to 60°C except where otherwise noted; ENABLE > 2.5V, VIN = 24V, FDUTY=100%, FPWM = 120Hz, Ta = 25°C.
Parameter
Symbol
Test Conditions / Comment
Min Typ Max Units
OUTPUT CHARACTERISTICS
Full Bright Lamp Current (Each Lamp)
Full Dim Lamp Current (Each Lamp)
Lamp Run Voltage (Each Lamp)
Lamp Start Voltage (Each Lamp)
Operating Frequency
Optical Dim Range (by PWM)4
Output Current Lamp to Lamp
Deviation
IOL100n3
IOL100n
VL_RUN
VLS
FO
N:1_BRTP
ΔIOLm,n
PWM = 100% or Open
VB = 3V, PWM=10%
PWM = 100% or Open
TA = -30°C, VIN 21.6V
Center Area Brightness, Max/Min
IOLm IOLn m=1,2,3,4, n= 1~4 not m
I OL m
5.5 6.0 6.5
1.6
670
1820
45.5 47.5 48.0
50
5
mARMS
mARMS
VRMS
VRMS
kHz
Ratio
%
Copyright © 2010
Rev. 1.0, 2010-10-13
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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