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LXMG1626-12-65
LXMG1626-12-65
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PanelMatch LXMG1626-12-65
12V 10W Dual CCFL Programmable Inverter Module
TM
PRODUCTION DATA SHEET
DESCRIPTION KEY FEATURES
The LXMG1626-12-65 is a 10W dual wide range typically (100:1+) dimming
Externally Programmable
Maximum Output Current
Output Direct Drive CCFL (Cold Cathode application.
Easy to Use Brightness Control
Fluorescent Lamp) Inverter Module The resultant burst drive that
RangeMAX Wide Range
specifically designed to be compatible with a energizes the lamp is designed specifically
Dimming
variety of LCD panels the have both lamps to ensure that no premature lamp
Output Open & Short-Circuit
on one side of the panel and use a single degradation occurs, while allowing
Protection and Automatic Strike-
Voltage Regulation and Timeout
common lamp return wire. significant power savings at lower dim
Fixed Frequency Operation
LXMG1626 modules provide the levels.
Rated From -20 to 70C
designer with a vastly superior display The modules convert DC voltage from
UL60950 E175910
brightness range. This brightness range is the system battery or AC adapter directly to
RoHS Compliant
achievable with virtually any LCD display. high frequency, high-voltage waves
The modules are available with a required to ignite and operate CCFL lamps.
APPLICATIONS
dimming input that permits brightness The modules design utilizes
control from either, a DC voltage source, Microsemis LX1691B backlight con- Dual Lamp LCDs Requiring a
Shared Common Lamp Return
a PWM signal or external Potentiometer. troller, which provides a number of cost
Mates to a Single JST BHR-04-VS-
The maximum output current is and performance advantages due to the
1 Lamp Connector
externally programmable (through the input controllers high level of integration. A 5V
Desktop Displays
connector) over a range of 10 to 13mA in input supply version (LXMG1626-05-65) is
Industrial Display Controls
1mA steps. This allows the inverter to match also available.
the panels lamp current specifications, or it Other benefits of this new topology are
BENEFITS
can be used to purposely drive the lamps at a stable fixed-frequency operation,
Smooth, Flicker Free 1%-100%
lower or higher current to decrease or secondary-side strike-voltage regulation
Full-Range Brightness Control
increase nominal brightness. and both open/shorted lamp protection with
Programmable Output Current
RangeMAX Digital Dimming Technique fault timeout.
Allows Inverter to Mate With a
provides flicker-free brightness control in any
Wide Variety of LCD Panels
Specifications
IMPORTANT: For the most current data, consult MICROSEMIs website: WWW.Microsemi .COM
ELECTRICALS
ELECTRICALS
PanelMatch LXMG1626-12-65
12V 10W Dual CCFL Programmable Inverter Module
TM
PRODUCTION DATA SHEET
ABSOLUTE MAXIMUM RATINGS (NOTE 1)
Input Signal Voltage (V ).....................................................................................................................................-0.3V to 16V
IN1
Input Power....................................................................................................................................................................... 14W
Output Voltage, no load ............................................................................................................ Internally Limited to 1800V
RMS
Output Current ............................................................................................................................7.5mA (Internally Limited)
RMS
Output Power .................................................................................................................................................................... 10W
Input Signal Voltage ( SLEEP Input)..................................................................................................................... -0.3V to V
IN1
Input Signal Voltage (BRITE) ...............................................................................................................................-0.3V to 5.5V
Ambient Operating Temperature, zero airflow.....................................................................................................-20C to 70C
Operating Relative Humidity, non-condensing ................................................................................................................ 90%
Storage Temperature Range...............................................................................................................................-40C to 85C
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.
Recommended Operating Conditions
Parameter Symbol Units
Min R.C. Max
Input Supply Voltage Range (Fully Regulated
10.8 12 13.2
Lamp Current) V V
IN1
Input Supply Voltage Range (Functional) 10.2 12 14.4
Output Power P 8 9 W
O
Linear BRITE Control Input Voltage Range V 0.1 2.0 V
BRT_ADJ
Lamp Operating Voltage V 510 600 690 V
LAMP RMS
Lamp Current (Full Brightness) I 10 13 mA
OLAMP RMS
Operating Ambient Temperature Range T -20 70 C
A
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of
25C except where otherwise noted.
LXMG1626-12-65
Parameter Symbol Test Conditions Units
Min Typ Max
OUTPUT PIN CHARACTERISTICS
`
V > 2.0V , > 2.0V, V = 12V
BRT_ADJ DC SLEEP IN1 DC
Full Bright Lamp Current (two lamps) I 9 10 11 mA
L(MAX) RMS
I = Ground, I = Ground
SET1 SET2
V > 2.0V , > 2.0V, V = 12V
BRT_ADJ DC SLEEP IN1 DC
Full Bright Lamp Current (two lamps) I 10 11 12 mA
L(MAX) RMS
I = Ground, I = Open
SET1 SET2
V > 2.0V , > 2.0V, V = 12V
BRT_ADJ DC SLEEP IN1 DC
Full Bright Lamp Current (two lamps) I 10.8 12 13.2 mA
L(MAX) RMS
I = Open, I = Ground
SET1 SET2
V > 2.0V , > 2.0V, V = 12V
BRT_ADJ DC SLEEP IN1 DC
Full Bright Lamp Current (two lamps) I 11.6 13 14.4 mA
L(MAX) RMS
I = Open, I = Open
SET1 SET2
Output Current Lamp to Lamp V > 2.0V , > 2.0V, V = 12V
BRT_ADJ DC SLEEP IN1 DC
I 5 %
LL%DEV
Deviation
I = Open, I = Open
SET1 SET2
V = 0V , > 2.0V, V = 12V
BRT_ADJ DC SLEEP IN1 DC
Min. Average Lamp Current I 1.4 mA
L(MIN) RMS
I = I = Ground; I = I * of % duty cycle
SET1 SET2 MIN MAX
Lamp Start Voltage V -20C < T < 70C, V > 10.8V 1450 1600 V
LS A IN1 DC RMS
Operating Frequency f V = 2.0V , > 2.0V, V = 12V 57.5 60.5 63.5 kHz
O BRT_ADJ DC SLEEP IN1
Burst Frequency f Output Burst Frequency 224 236 248 Hz
BURST
Copyright 2005
Microsemi
Page 2
Rev. 1.0a, 2006-11-16
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570