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LXMG1623-12-44

P1-P3P4-P6
P
RODUCTION
D
ATASHEET
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright © 2003
Rev. 1.1, 2006-11-15
WWW.Microsemi .COM
PanelMatch
™
LXMG1623-12-44
12V Dual 4W CCFL Programmable Inverter Module
TM
®
DESCRIPTION
The LXMG1623-12-44 is a Dual 4W
Output Direct Drive™ CCFL (Cold
Cathode Fluorescent Lamp) Inverter
Module specifically designed to be
compatible with the Sharp LQ104S1DG21
/ 15 10.4”, LQ121S1DG31 / 41 12.1” as
well as the Samsung LTM121SI-T01
12.1” or similar dual lamp displays that
have both individual lamp output
connectors on the top side of the panel.
LXMG1623 modules provide the
designer with a vastly superior display
brightness range. This brightness range is
achievable with virtually any LCD display.
The modules are available with a
dimming input that permits brightness
control from either, a DC voltage source,
a PWM signal or external Potentiometer.
The maximum output current is
externally programmable (through the
input connector) over a range of 5.2 to
6.7mA in 0.5mA steps. This allows the
inverter to match the panel’s lamp current
specifications, or it can be used to
purposely drive the lamps at a lower
current to save power or lower nominal
brightness.
RangeMAX™ Digital Dimming
Technique provides flicker-free bright-
ness control in any wide range (typically
50:1+) dimming application.
The resultant “burst drive” that
energizes the lamp is designed
specifically to ensure that no premature
lamp degradation occurs, while allowing
significant power savings at lower dim
levels.
The modules convert DC voltage from
the system battery or AC adapter directly
to high frequency, high-voltage waves
required to ignite and operate CCFL
lamps. A 5V input inverter is also
available: LXMG1623-05-44.
The modules design utilizes
Microsemi’s LX1689 backlight con-
troller, which provides a number of cost
and performance advantages due to the
controller’s high level of integration.
Other benefits of this new topology
are stable fixed-frequency operation,
secondary-side strike-voltage regulation
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
KEY FEATURES
Externally Programmable
Maximum Output Current
Easy to Use Brightness Control
RangeMAX Wide Range Dimming
Output Open & Short-Circuit
Protection and Automatic Strike-
Voltage Regulation and Timeout
Fixed Frequency Operation
Rated From -20 to 70°C
UL60950 E175910
RoHS Compliant
APPLICATIONS
LCD’s Requiring Both Output
Connectors on One Side of
Panel
Sharp LQ104S1DG21/51 and
LQ121S1DG31/41
Samsung LTM121SI-T01
Desktop Displays
Industrial Display Controls
BENEFITS
Smooth, Flicker Free 2%-100%
Full-Range Brightness Control
Programmable Output Current
Allows Inverter to Mate With a
Wide Variety of LCD Panel’s
Specifications
Output Open Circuit Voltage
Regulation Minimizes Corona
Discharge For High Reliability
PRODUCT HIGHLIGHT
UNIVERSAL DIMMING INPUT
"PWM", V
DC
, OR POTENTIOMETER
SELECTABLE MAXIMUM OUTPUT CURRENT 5MA
TO 5.2MA
RMS
TO 6.7MA
RMS
1
2
3
W
1
2
3
W
DC Voltage
Source
Potentiometer
PWM
Signal
PACKAGE ORDER INFO
PART NUMBER OUTPUT CONNECTOR
I
NVERTER MATES DIRECTLY
TO
PANEL CONNECTORS
LXMG1623-12-44
JST SM02(8.0)B-BHS-1-TB (LF)(SN) or Yeon Ho 20015WR-05A00 JST BHR-03VS-1
L
L
X
X
M
M
G
G
1
1
6
6
2
2
3
3
-
-
1
1
2
2
-
-
4
4
4
4
P
RODUCTION
D
ATASHEET
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright © 2003
Rev. 1.1, 2006-11-15
WWW.Microsemi .COM
PanelMatch
™
LXMG1623-12-44
12V Dual 4W CCFL Programmable Inverter Module
TM
®
ABSOLUTE MAXIMUM RATINGS (NOTE 1)
Input Signal Voltage (V
IN1
).....................................................................................................................................-0.3V to 16V
Input Power....................................................................................................................................................................... 10W
Output Voltage, no load ............................................................................................................ Internally Limited to 1800V
RMS
Output Current ............................................................................................................................7.5mA
RMS
(Internally Limited)
Output Power (each output) ............................................................................................................................................. 4.0W
Input Signal Voltage (
SLEEP
Input) ...................................................................................................................... -0.3V to V
IN1
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.
Recommended Operating Conditions
Parameter Symbol
Min R.C. Max
Units
Input Supply Voltage Range (Fully Regulated
Lamp Current)
10.8 12 13.2
Input Supply Voltage Range (Functional)
V
IN1
10.2 12 14.4
V
Output Power (each output) P
O
3.5 4.0 W
Linear BRITE Control Input Voltage Range V
BRT_ADJ
0.5 2.0 V
Lamp Operating Voltage V
LAMP
450 530 610 V
RMS
Lamp Current (Full Brightness) I
OLAMP
5.2 6.7 mA
RMS
Operating Ambient Temperature Range T
A
-20 70 °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.
LXMG1623-12-44
Parameter Symbol Test Conditions
Min Typ Max
Units
`
OUTPUT PIN CHARACTERISTICS
Full Bright Lamp Current (each output) I
L(MAX)
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 12V
DC
I
SET1
= Ground, I
SET2
= Ground
4.7 5.2 5.7 mA
RMS
Full Bright Lamp Current (each output) I
L(MAX)
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 12V
DC
I
SET1
= Ground, I
SET2
= Open
5.2 5.7 6.2 mA
RMS
Full Bright Lamp Current (each output) I
L(MAX)
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 12V
DC
I
SET1
= Open, I
SET2
= Ground
5.7 6.2 6.7 mA
RMS
Full Bright Lamp Current (each output) I
L(MAX)
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 12V
DC
I
SET1
= Open, I
SET2
= Open
6.2 6.7 7.2 mA
RMS
Output Current Lamp to Lamp
Deviation
I
LL%DEV
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 12V
DC
I
SET1
= Open, I
SET2
= Open
3 10 %
Min. Average Lamp Current
(each output)
I
L(MIN)
V
BRT_ADJ
≤0.5V
DC
,
SLEEP
> 2.0V, V
IN1
= 12V
DC
I
SET1
= I
SET2
= Ground
0.30 mA
RMS
Lamp Start Voltage V
LS
-20°C < T
A
< 70°C, V
IN1
> 10.8V
DC
1450 1600 V
RMS
Operating Frequency f
O
V
BRT_ADJ
= 2.5V
DC
,
SLEEP
> 2.0V, V
IN1
= 12V 57 60 63 kHz
Burst Frequency f
BURST
Output Burst Frequency 222 234 246 Hz
E
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C
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A
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S
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P
RODUCTION
D
ATASHEET
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright © 2003
Rev. 1.1, 2006-11-15
WWW.Microsemi .COM
PanelMatch
™
LXMG1623-12-44
12V Dual 4W CCFL Programmable Inverter Module
TM
®
ELECTRICAL CHARACTERISTICS (CONTINUED)
Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of
25°C except where otherwise noted.
LXMG1623-12-44
Parameter Symbol Test Conditions
Min Typ Max
Units
`
BRITE INPUT
V
BRT_ADJ
= 0V
DC
-300 µA
DC
Input Current I
BRT
V
BRT_ADJ
= 3V
DC
50 µA
DC
Minimum Input for Max. Lamp Current V
BRT_ADJ
I
O(LAMP)
= Maximum Lamp Current 2.0 2.05 V
DC
Maximum Input for Min. Lamp Current V
BRT_ADJ
I
O(LAMP)
= Minimum Lamp Current 0.4 0.5 V
DC
`
SLEEP INPUT
RUN Mode
SLEEP
V
2.0 V
IN1
V
DC
SLEEP Mode
SLEEP
V
-0.3 0.8 V
DC
`
SET
1,2
INPUT
SET
1,2
Low Threshold
V
L
0.4 V
Input Current I
SET
V
SET
≤ 0.4V -300 µA
`
POWER CHARACTERISTICS
Sleep Current I
IN(MIN)
V
IN1
= 12V
DC
,
SLEEP
< 0.8V
0.0 10 50 µA
DC
Run Current I
IN(RUN)
V
IN1
= 12V
DC
,
SLEEP
≥ 2.0V, I
SET1
= Open
I
SET2
= Ground, V
LAMP
= 500V
RMS
550 mA
DC
Efficiency
η
V
IN1
= 12V
DC
,
SLEEP
≥ 2.0V, I
SET1
= Open
I
SET2
= Ground, V
LAMP
= 500V
RMS
90 %
FUNCTIONAL PIN DESCRIPTION
CONN PIN DESCRIPTION
CN1 (Molex 53261-0871) Mates with 51021-0800 housing, 50079-8100 pins. Mates with LX9501G input cable assembly
CN1-1
CN1-2
V
IN1
Main Input Power Supply (10.8V < V
IN1
< 13.2V)
CN1-3
CN1-4
GND Power Supply Return
CN1-5
SLEEP ON/OFF Control. (0V < SLEEP < 0.8 = OFF, SLEEP >= 2.0V = ON
CN1-6 BRITE Brightness Control (0.5V to 2.0V
DC
). 2.0V
DC
gives maximum lamp current.
CN1-7 SET
1
SET
1
MSB Connecting this pin to ground decreases the output current (see Table 1)
CN1-8 SET
2
SET
2
LSB Connecting this pin to ground decreases the output current (see Table 1)
CN2, CN3 for LXMG1623-12-44 (JST SM02(8.0)B-BHS-1-TB (LF)(SN) or Yeon Ho 20015WR-05A00)
CN2-1
CN3-1
V
HI
High voltage connection to high side of lamp. Connect to lamp terminal with shortest lead length.
DO NOT connect to Ground.
CN2-2
CN3-2
V
LO
Connection to low side of lamp. Connect to lamp terminal with longer lead length.
DO NOT connect to Ground
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T
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R
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A
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P1-P3P4-P6

LXMG1623-12-44

Mfr. #:
Buy LXMG1623-12-44
Manufacturer:
Microchip / Microsemi
Description:
EL/CCFL Inverters & Accessories CCFL Inverter Module - Dual Lamp
Lifecycle:
New from this manufacturer.
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