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  Microsemi Electronic Components Datasheet  

LXMG1627-05-44 Datasheet

5V Dual 4W CCFL Programmable Inverter Module

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PanelMatchRangeMAXLXMG1627-05-44
TM ® 5V Dual 4W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
DESCRIPTION
The LXMG1627-05-44 is a Dual 4W This allows the inverter to match the
Output Direct Drive™ CCFL (Cold panel’s lamp current specifications.
Cathode Fluorescent Lamp) Inverter The modules convert a DC voltage
Module specifically designed to be from the system battery or AC adapter
compatible with the Sharp LQ104S1DG51 directly to high frequency, high-voltage
/61 10.4”, LQ121S1DG41/61 12.1” as well waves required to ignite and operate CCFL
as the 10.4” Toshiba Matsushita lamps. A 12V input inverter version is also
LTA104D182F/183F and the Samsung available: LXMG1627-12-44.
LTM121SI-T01 12.1” or similar dual lamp The module’s design utilizes
displays that have individual lamp output Microsemi’s LX6512 backlight controller,
connectors on one side of the panel.
which provides a number of cost and
LXMG1627 modules provide the performance advantages due to the
designer with a vastly superior display controller’s high level of integration.
brightness range. The RangeMAX™ Other benefits of this new topology are
Digital Dimming Technique supplies stable fixed-frequency operation,
flicker-free brightness control for any wide secondary-side strike-voltage regulation
range (typically 50:1+) dimming and both open/shorted lamp protection with
application.
fault timeout for open lamp condition.
The included dimming input permits The new LXMG1627-xx-44 modules
brightness control from either, a DC are designed therefore as a wider
voltage source, a PWM signal or an temperature range near drop-in-
external potentiometer.
replacement for the LXMG1623-xx-44
The maximum output current is inverters, the major difference being the
externally programmable (through the input input voltage adjustment range of the
connector) over a range of 5mA to 6.5mA BRITE (dimming) pin.
in 0.5mA steps.
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
UNIVERSAL DIMMING INPUT
"PWM", VDC, OR POTENTIOMETER
KEY FEATURES
ƒ Externally Programmable Maximum
Output Current
ƒ Easy to Use Brightness Control
ƒ RangeMAX Wide Range Dimming
ƒ Output Open & Short-Circuit Protection
and Automatic Strike-Voltage
Regulation and Timeout
ƒ Fixed Frequency Operation
ƒ Rated From -30°C to 80°C
ƒ UL60950 E175910 Pending
ƒ RoHS Compliant
ƒ
APPLICATIONS
ƒ LCD’s Requiring Both Output
Connectors on One Side of Panel
ƒ Sharp LQ104S1DG51/61 and
LQ121S1DG41/61
ƒ Samsung LTM121SI-T01
ƒ Toshiba Matsushita
LTA104D182F/183F
ƒ Desktop Displays
ƒ Industrial Display Controls
BENEFITS
ƒ Smooth, Flicker Free 2%-100%
Full-Range Brightness Control
ƒ Programmable Output Current Allows
Inverter to Mate With a Wide Variety of
LCD Panel’s Specifications
ƒ Output Open Circuit Voltage
Regulation Minimizes Corona
Discharge For High Reliability
DC Voltage
Source
500k
Potentiometer
PWM
Signal
PART NUMBER
LXMG1627-05-44
SELECTABLE MAXIMUM OUTPUT CURRENT
5.0MARMS TO 6.5MARMS
PACKAGE ORDER INFO
OUTPUT CONNECTOR
INVERTER MATES DIRECTLY TO
PANEL CONNECTORS
JST SM02(8.0)B-BHS-1-TB (LF)(SN) or Yeon Ho 20015WR-05A00 or equivalent
JST BHR-03VS-1
Copyright © 2008
Rev. 1.0, 2008-12-04
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, 800-877-6458, Fax: 714-893-2570
Page 1


  Microsemi Electronic Components Datasheet  

LXMG1627-05-44 Datasheet

5V Dual 4W CCFL Programmable Inverter Module

No Preview Available !

PanelMatchRangeMAXLXMG1627-05-44
TM ® 5V Dual 4W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
ABSOLUTE MAXIMUM RATINGS
Input Signal Voltage (VIN) ........................................................................................................................................-0.3V to 6V
Input Power ....................................................................................................................................................................... 10W
Output Voltage, no load.............................................................................................................Internally Limited to 1800VRMS
Output Current..............................................................................................................................................................9mARMS
Output Power (each output) ............................................................................................................................................. 4.0W
Input Signal Voltage ( SLEEP Input) ....................................................................................................................... -0.3V to VIN
Input Signal Voltage (BRITE) ...............................................................................................................................-0.3V to 5.5V
Ambient Operating Temperature, zero airflow.................................................................................................... -30°C to 80°C
Operating Relative Humidity, non-condensing ................................................................................................................ 90%
Storage Temperature Range.............................................................................................................................. -40°C to 85°C
Note: 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, might not function optimally.
Parameter
Symbol
Recommended Operating Conditions
Min R.C. Max
Input Supply Voltage Range (Fully Regulated
Lamp Current)
Input Supply Voltage Range (Functional)
VIN 4.75 5 5.25
4.5 5 5.5
Output Power (each output)
Linear BRITE Control Input Voltage Range¹
Lamp Operating Voltage
Lamp Current (Full Brightness) ²
Operating Ambient Temperature Range
PO 3.5 4.0
VBRT_ADJ
0
2.5
VLAMP
450
530
610
IOLAMP
5.0
6.5
TA -30
80
¹ The BRITE minimum input voltage level is 0V to 2.5V, whereas it is 0.5V to 2.0V in the LXMG1623-05-44 inverter.
²At input voltages below 5V the inverter may not be able to output the full 6.5mARMS per lamp in all configurations.
Units
V
W
V
VRMS
mARMS
°C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of 0°C to
60°C, BRITE 2.5V, SLEEP > 2.0V, VIN = 5V except where otherwise noted.
Parameter
Symbol
Test Conditions
LXMG1627-05-44
Units
Min Typ Max
OUTPUT PIN CHARACTERISTICS
Full Bright Lamp Current (each output)
IL(MAX) SET1 = Ground, SET2 = Ground
4.5 5.0 5.5 mARMS
Full Bright Lamp Current (each output)
Full Bright Lamp Current (each output)
Full Bright Lamp Current (each output)
Output Current Lamp to Lamp Deviation
Min. Average Lamp Current
(each output)
IL(MAX)
IL(MAX)
IL(MAX)
ILL%DEV
IL(MIN)
SET1 = Ground, SET2 = Open
SET1 = Open, SET2 = Ground
SET1 = Open, SET2 = Open
SET1 = Open, SET2 = Open
BRITE = 0V, SET1 = SET2 = Ground,
IL(MIN) = ILMAX * Burst Duty Cycle
5.0 5.5 6.0 mARMS
5.5 6.0 6.5 mARMS
6.0 6.5 7.0 mARMS
3 10 %
0.7 1.2 1.7 mARMS
Lamp Start Voltage
Operating Frequency
VLS -30°C < TA < 80°C, VIN > 4.75V
fO
1400
54
1600
60
66
VRMS
kHz
Burst Frequency
fBURST Output Burst Frequency
198 233 268
Hz
Copyright © 2008
Rev. 1.0, 2008-12-04
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, 800-877-6458, Fax: 714-893-2570
Page 2


Part Number LXMG1627-05-44
Description 5V Dual 4W CCFL Programmable Inverter Module
Maker Microsemi Corporation
Total Page 6 Pages
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