Inverter Module. LXMG1626-05-46 Datasheet

LXMG1626-05-46 Module. Datasheet pdf. Equivalent

Part LXMG1626-05-46
Description CCFL Programmable Inverter Module
Feature PanelMatch™ StayLit™ TM ® LXMG1626-05-46 5V Dual 6W CCFL Programmable Inverter Module P RODUCTION.
Manufacture Microsemi Corporation
Datasheet
Download LXMG1626-05-46 Datasheet



LXMG1626-05-46
PanelMatchStayLit
LXMG1626-05-46
TM ® 5V Dual 6W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
DESCRIPTION
The LXMG1626-05-46 is a Dual 6W In addition when only one of the two
Output Direct Drive CCFL (Cold Cathode lamps in the LCD fails open, the second
wwwF.lDuaotarSehseceet4nUt.net Lamp) Inverter Module lamp will continue to operate with a
specifically designed to be compatible FAULT signal toggling to indicate the
with variety of LCD panels that have both failed condition, StayLit™ feature.
lamps on one side of the panel and use a RangeMAX Digital Dimming
single common lamp return wire.
Technique provides flicker-free
LXMG1626 modules provide the brightness control in any wide range
designer with a superior display brightness typically (100:1+) dimming application.
range. This brightness range is achievable The resultant “burst drive” that
with virtually any LCD display.
energizes the lamp is designed
The modules are available with a specifically to ensure that no premature
dimming input that permits brightness lamp degradation occurs, while allowing
control from either, a DC voltage source, significant power savings at lower dim
a PWM signal or external potentiometer. levels.
The maximum output current is The design utilizes Microsemi’s
externally programmable (through the highly integrated LX1691B backlight
input connector) at either 10mA or 12mA controller to convert DC voltage from the
(5mA or 6mA per lamp). This allows the system battery or AC adapter directly to
inverter to match the panel’s lamp current high frequency, high-voltage waves
specifications, or it can be used to required to ignite and operate CCFL
purposely drive the lamps at a lower or lamps.
higher current to decrease or increase Other benefits of this new topology
nominal brightness. The inverter also has are stable fixed-frequency operation,
a dedicated FAULT pin that indicates an secondary-side strike-voltage regulation
open/shorted lamp condition.
and both open/shorted lamp protection
with fault timeout.
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 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 StayLit™ Continued Operation
with Single Open Lamp Failure
ƒ Fixed Frequency Operation
ƒ Fault Output Signal
ƒ Rated From -30 to 80°C
ƒ RoHS Compliant
ƒ UL60950 E175910
ƒ
APPLICATIONS
ƒ Dual Lamp LCD’s Requiring a
Shared Common Lamp Return
ƒ Mates to a Single JST BHR-
04VS-1 Lamp Connector
ƒ Industrial Display Controls
BENEFITS
ƒ Smooth, Flicker Free 1%-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
Potentiometer
PWM
Signal
Lamp
Fault
Signal
Microsemi
UNIVERSAL DIMMING INPUT
"PWM", VDC, OR POTENTIOMETER
Lamp current 5 or 6mA per Lamp
W
PART NUMBER
LXMG1626-05-46
Copyright © 2007
Rev. 1.1, 2007-10-25
PACKAGE ORDER INFO
OUTPUT CONNECTOR
JST SM04(4.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-07A00 or equivalent
INVERTER MATES DIRECTLY
TO PANEL CONNECTORS
JST BHR-04VS-1
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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LXMG1626-05-46
PanelMatchStayLit
LXMG1626-05-46
TM ® 5V Dual 6W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
ABSOLUTE MAXIMUM RATINGS
Input Signal Voltage (VIN ) .......................................................................................................................................-0.3V to 6V
Input Power ......................................................................................................................................................................... 8W
Output Voltage, no load ............................................................................................................ Internally Limited to 1500VRMS
Output Current (per lamp) ...........................................................................................................6.6mARMS (Internally Limited)
Output Power ..................................................................................................................................................................... 6W
Input Signal Voltage ( SLEEP Input) ......................................................................................................................-0.3V to 5.5V
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
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)
VIN
4.75
5
5.25
Input Supply Voltage Range (Functional)
4.5 5 5.5
Output Power
PO 4.5 5.5
Linear BRITE Control Input Voltage Range
VBRT_ADJ
0
2.0
Lamp Operating Voltage
VLAMP
320
370
420
Lamp Current (Full Brightness, per lamp)
IOLAMP
5.0
6.0
Operating Ambient Temperature Range
TA -30
80
¹ Based on single lamp voltage measurement, use of lamps outside of this range may result is false triggering of the fault detection circuitry.
²At input voltages below 5V the inverter may not be able to output the full 6mARMS per lamp in all configurations.
Units
V
W
V
VRMS¹
mARMS²
°C
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.
Parameter
` OUTPUT PIN CHARACTERISTICS
Full Bright Lamp Current (two lamps)
Full Bright Lamp Current (two lamps)
Output Current Lamp to Lamp
Deviation
Min. Average Lamp Current
Lamp Start Voltage
Operating Frequency
Burst Frequency
FAULT Output Voltage High
FAULT Output Voltage Low
Symbol
Test Conditions
IL(MAX)
IL(MAX)
ILL%DEV
IL(MIN)
VLS
fO
fBURST
FAULTVH
FAULTVL
VBRT_ADJ > 2.0V, SLEEP > 2.0V, VIN = 5V
ISET = Ground
VBRT_ADJ > 2.0V, SLEEP > 2.0V, VIN = 5V
ISET = Open
VBRT_ADJ > 2.0V, SLEEP > 2.0V, VIN = 5V
ISET = Open
VBRT_ADJ = 0V, SLEEP > 2.0V, VIN = 5V
ISET = Ground; IOUT = IMAX * SQRT of % duty cycle
VIN > 4.5V
VBRT_ADJ = 2.0V, SLEEP > 2.0V, VIN = 5V
Output Burst Frequency
FAULT = -10uA
FAULT = 10uA
LXMG1626-05-46 Units
Min Typ Max
9 10
11 12
5
1250
55.2
215
2.9
1.6
1400
57.6
225
3.4
0.3
11 mARMS
13 mARMS
%
mARMS
VRMS
60 kHz
235 Hz
V
0.8 V
Copyright © 2007
Rev. 1.1, 2007-10-25
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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