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LXMG1624-12-61

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 © 2005
Rev. 1.1, 2006-11-16
WWW.Microsemi .COM
PanelMatch
™
LXMG1624-12-6x
12V Dual 6W Programmable CCFL Inverter Module
TM
®
DESCRIPTION
The LXMG1624-12-6x is a Dual 6W
Output Direct Drive™ CCFL (Cold
Cathode Fluorescent Lamp) Inverter
Module specifically designed for driving
LCD backlight lamps. It is ideal for
driving typical 10.4” to 15” panels.
The modules are available with a
dimming input that permits brightness
control from either a DC voltage source or
a PWM signal or external Potentiometer.
The maximum output current is externally
programmable over a range of 5 to 8mA in
1mA steps to allow the inverter to properly
match to a wide array of LCD panel lamp
current specifications.
LXMG1624 modules unlike the
LXMG1623 series does not provide wide
range ‘burst’ mode dimming, rather
dimming is provided by amplitude control
of the output current waveform, this limits
the potential dim range to typically less
than 5:1.
For applications not requiring wide
range dimming, amplitude control results
in lower ripple on the input supply and
reduced potential transient noise
generation. Many STN type panels are
particularly well suited for current
amplitude dimming.
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.
The modules design is based on
Microsemi’s new LX1689 backlight
controller, 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
Analog Current Amplitude
Dimming Method
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
High Brightness Displays
Portable Instrumentation
Desktop Displays
Industrial Display Controls
BENEFITS
Compact, Low Profile Design
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
SELECTABLE MAXIMUM OUTPUT CURRENT 5mA
TO 8mA
RMS
UNIVERSAL DIMMING INPUT
“PWM”, V
DC
, or POETENTIOMETER
DC Voltage
Source
Potentiometer
PWM
Signal
1
2
3
W
1
2
3
W
PACKAGE ORDER INFO
PART NUMBER OUTPUT CONNECTOR
I
NVERTER MATES DIRECTLY TO
PANEL CONNECTORS
LXMG1624-12-61 JST SM02(8.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-05A00 JST BHR-03VS-1
LXMG1624-12-62 JST SM02B-BHSS-1-TB(LF)(SN) or Yeon Ho 35001WR-02A00 JST BHSR-02VS-1
L
L
X
X
M
M
G
G
1
1
6
6
2
2
4
4
-
-
1
1
2
2
-
-
6
6
X
X
P
RODUCTION
D
ATASHEET
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright © 2005
Rev. 1.1, 2006-11-16
WWW.Microsemi .COM
PanelMatch
™
LXMG1624-12-6x
12V Dual 6W Programmable CCFL Inverter Module
TM
®
ABSOLUTE MAXIMUM RATINGS (NOTE 1)
Input Signal Voltage (V
IN1
).....................................................................................................................................-0.3V to 15V
Input Power....................................................................................................................................................................... 15W
Output Voltage, no load ............................................................................................................ Internally Limited to 1800V
RMS
Output Current ............................................................................................................................9.5mA
RMS
(Internally Limited)
Output Power (each output) ............................................................................................................................................. 6.0W
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 13.8
V
Output Power (each output) P
O
5.5 6.0 W
Linear BRITE Control Input Voltage Range¹ V
BRT_ADJ
0.65 to 0.9 2.0 V
Lamp Operating Voltage V
LAMP
480 600 720 V
RMS
Lamp Current (Full Brightness) I
OLAMP
5 8 mA
RMS
Operating Ambient Temperature Range T
A
-20 70 °C
¹ The minimum V
BRT ADJ
voltage depends on the panel characteristics, depending on the panel it can vary from 0.65V to 0.9V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of
25°C except where otherwise noted.
LXMG1624-12-6x
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
4.4 5 5.6 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
5.4 6 6.6 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
6.4 7 7.6 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
7.4 8 8.6 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
2² mA
RMS
Lamp Start Voltage V
LS
-20°C < T
A
< 70°C, V
IN1
> 10.8V
DC
1400 1650 V
RMS
Operating Frequency f
O
V
BRT_ADJ
= 2.5V
DC
,
SLEEP
> 2.0V, V
IN1
= 12V
66 70 73 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.
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R
I
I
C
C
A
A
L
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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 © 2005
Rev. 1.1, 2006-11-16
WWW.Microsemi .COM
PanelMatch
™
LXMG1624-12-6x
12V Dual 6W Programmable CCFL 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.
LXMG1624-12-6x
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
Minimum Input for Min. Lamp Current V
BRT_ADJ
I
O(LAMP)
= Minimum Lamp Current 0.65* 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 30 µA
DC
Run Current I
IN(RUN)
V
IN1
= 12V
DC
,
SLEEP
≥ 2.0V, I
SET1
= Open
I
SET2
= Ground, V
LAMP
= 600V
RMS
875 mA
DC
Efficiency
η
V
IN1
= 12V
DC
,
SLEEP
≥ 2.0V, I
SET1
= Open
I
SET2
= Ground, V
LAMP
= 600V
RMS
85 %
* 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. This is likely greater than the 0.65V minimum input.
FUNCTIONAL PIN DESCRIPTION
CONN PIN DESCRIPTION
CN1 (Molex 53261-0871) Mates with 51021-0800 housing, 50079-8100 pins. Mates with LX9501 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 (0.65V 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 LXMG1624-12-61 and -62 (JST SM02(8.0)B-BHS-1-TB(LF)(SN), Yeon Ho 20015WR-05A00 or SM02B-BHSS-
1-TB(LF)(SN), Yeon Ho 35001WR-0200)
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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P1-P3P4-P6

LXMG1624-12-61

Mfr. #:
Buy LXMG1624-12-61
Manufacturer:
Microchip / Microsemi
Description:
EL/CCFL Inverters & Accessories CCFL Inverter Module - Dual Lamp
Lifecycle:
New from this manufacturer.
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