Inverter Module. LXMG1644-12-61 Datasheet

LXMG1644-12-61 Module. Datasheet pdf. Equivalent

Part LXMG1644-12-61
Description CCFL Programmable Inverter Module
Feature PanelMatch™ TM ® LXMG1644-12-61 12V Quad 6W CCFL Programmable Inverter Module P RODUCTION D ATASH.
Manufacture Microsemi Corporation
Total Page 6 Pages
Datasheet
Download LXMG1644-12-61 Datasheet



LXMG1644-12-61
PanelMatch™
LXMG1644-12-61
TM ® 12V Quad 6W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
DESCRIPTION
The LXMG1644-12-61 is a Quad 6W For applications not requiring wide
Output Direct Drive™ CCFL (Cold range dimming, amplitude control results
wwwC.DatahtaoSdheeet4UF.nleutorescent Lamp) Inverter in lower ripple on the input supply and
Module specifically designed for driving reduced potential transient noise
LCD backlight lamps. It is ideal for generation. Many STN type panels are
driving typical 12.1” to 18.1” TFT panels. particularly well suited for current
The modules are available with a amplitude dimming.
dimming input that permits brightness The modules convert DC voltage from
control from either a DC voltage source or the system battery or AC adapter directly
a PWM signal or external Potentiometer. to high frequency, high-voltage waves
The maximum output current is externally required to ignite and operate CCFL
programmable over a range of 10 to 16mA lamps.
in 1mA steps to allow the inverter to The LXMG1644-12-61 inverter is in-
properly match to a wide array of LCD tended for panel assemblies where lamp
panel lamp current specifications.
pairs share close proximity with one
LXMG1644 modules unlike the another and a common return (low side)
LXMG1643 series does not provide wide wire.
range ‘burst’ mode dimming, rather Other benefits of this new topology
dimming is provided by amplitude control are stable fixed-frequency operation,
of the output current waveform, this limits secondary-side strike-voltage regulation
the potential dim range to typically less and both open/shorted lamp protection
than 5:1.
with fault timeout.
IMPORTANT: For the most current data and a panel to inverter cross reference, consult MICROSEMI’s website:
http://www.microsemi.com
KEY FEATURES
ƒ Externally Programmable
Maximum Output Current
ƒ Easy to Use Brightness
Control
ƒ Analog Current Amplitude
Dimming Method
ƒ Output Open/Short-Circuit
Protection and Timeout
ƒ Fixed Frequency Operation
ƒ Rated From -20 to 70°C
ƒ UL 60950 E175910.
ƒ RoHS Compliant
APPLICATIONS
ƒ High Brightness Displays
ƒ Desktop Displays
ƒ Industrial Display Controls
BENEFITS
ƒ Compact, Low Profile
Design
ƒ Programmable output
current allows inverter to
mate with a wide variety of
LCD panel’s specifications
PRODUCT HIGHLIGHT
Universal Dimming Input PWM, VDC, or Potentiometer
DC
Voltage
Source
Potentiometer
PWM
Signal
Selectable Maximum Output Current 10mA to 16mARMS
W
PACKAGE ORDER INFO
ART NUMBER
OUTPUT CONNECTORS
INVERTER MATES DIRECTLY TO
PANEL CONNECTORS
LXMG1644-12-61 Two JST SM04(4.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-07A00
JST BHR-04VS-1
Copyright © 2002
Rev. 1.1, 2006-11-16
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1



LXMG1644-12-61
PanelMatch™
LXMG1644-12-61
TM ® 12V Quad 6W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
ABSOLUTE MAXIMUM RATINGS (NOTE 1)
Input Signal Voltage (VIN1).....................................................................................................................................-0.3V to 15V
Input Power ....................................................................................................................................................................... 30W
Output Voltage, no load ............................................................................................................ Internally Limited to 2000VRMS
Output Current (each output) ......................................................................................................9.5mARMS (Internally Limited)
Output Power (each output) ............................................................................................................................................. 6.0W
Input Signal Voltage ( SLEEP Input) ..................................................................................................................... -0.3V to VIN1
Input Signal Voltage (BRITE) ...............................................................................................................................-0.3V to 5.5V
Ambient Operating Temperature, zero airflow.....................................................................................................-20°C to 70°C
Operating Relative Humidity, non-condensing ................................................................................................................ 90%
Storage Temperature Range...............................................................................................................................-40°C to 85°C
Note 1: 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, will not function optimally.
Parameter
Symbol
Recommended Operating Conditions
Min R.C. Max
Input Supply Voltage Range (Fully Regulated
Lamp Current)
VIN1
10.8
12
13.2
Input Supply Voltage Range (Functional)
10.2 12 13.8
Output Power (each lamp)
Linear BRITE Control Input Voltage Range¹
Lamp Operating Voltage
Lamp Current (Each pair, Full Brightness)
Operating Ambient Temperature Range
PO
VBRT_ADJ
VLAMP
IOLAMP
TA
0.65 to 0.9
530
10
-20
5.0
625
6.0*
2.0
720
16
70
*Total output power must not exceed 12W per lamp pair. Higher voltage lamps may require the maximum output current to be set lower 16mA
¹ The minimum VBRT ADJ voltage depends on the panel characteristics, depending on the panel it can vary from 0.65V to 0.9V
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
25°C except where otherwise noted.
Parameter
` OUTPUT PIN CHARACTERISTICS
Symbol
Test Conditions
LXMG1644-12-61 Units
Min Typ Max
Full Bright Lamp Current (two lamps)
IL(MAX)
Full Bright Lamp Current (two lamps)
IL(MAX)
Full Bright Lamp Current (two lamps)
IL(MAX)
Full Bright Lamp Current (two lamps)
Output Current pair of Lamps to pair of
Lamps Deviation
Min. Average Lamp Current
(each output)
Lamp Start Voltage
Operating Frequency
IL(MAX)
ILL%DEV
IL(MIN)
VLS
fO
VBRT_ADJ > 2.0VDC, SLEEP > 2.0V, VIN1 = 12VDC
ISET1 = Ground, ISET2 = Ground
VBRT_ADJ > 2.0VDC, SLEEP > 2.0V, VIN1 = 12VDC
ISET1 = Ground, ISET2 = Open
VBRT_ADJ > 2.0VDC, SLEEP > 2.0V, VIN1 = 12VDC
ISET1 = Open, ISET2 = Ground
VBRT_ADJ > 2.0VDC, SLEEP > 2.0V, VIN1 = 12VDC
ISET1 = Open, ISET2 = Open
VBRT_ADJ > 2.0VDC, SLEEP > 2.0V, VIN1 = 12VDC
ISET1 = Open, ISET2 = Open
VBRT_ADJ 0.5VDC, SLEEP > 2.0V, VIN1 = 12VDC
ISET1 = ISET2 = Ground
-20°C < TA < 70°C, VIN1 > 10.8VDC
VBRT_ADJ = 2.5VDC, SLEEP > 2.0V, VIN1 = 12V
9
10.8
12.8
14.7
1500
69
10
12
14
16
3
5.5²
1650
72
11 mARMS
13 mARMS
15 mARMS
17 mARMS
10 %
mARMS
VRMS
75 kHz
² The inverter is capable of a lower output current than may be recommended by the panel manufacturer. It is the user’s responsibility to set the minimum brightness
(BRITE) input at or above the panel specification for minimum current.
Copyright © 2002
Rev. 1.1, 2006-11-16
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2





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