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LXMG1626-05-67

P1-P3P4-P6
PRODUCTION DATASHEET
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright © 2005
Rev. 1.0, 2007-01-04
WWW.Microsemi .COM
PanelMatch
™
LXMG1626-05-67
5V 10W Dual CCFL Programmable Inverter Module
TM
®
DESCRIPTION
The LXMG1626-05-67 is a 10W dual
Output Direct Drive™ CCFL (Cold Cathode
Fluorescent Lamp) Inverter Module
specifically designed to be compatible with a
variety of LCD panels that have both lamps
on one side of the panel and use a single
common lamp return wire.
LXMG1626 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 10 to 14mA in
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 or higher current to decrease or
increase nominal brightness.
RangeMAX™ Digital Dimming Technique
provides flicker-free brightness control in any
wide range (typically 100:1+) 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.
The modules design utilizes
Microsemi’s LX1691B backlight con-
troller, which provides a number of cost and
performance advantages due to the
controller’s high level of integration. A
12V input supply version (LXMG1626-12-
67) is also available.
Other benefits of this new topology
include: 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
Dual Lamp LCD’s Requiring a
Shared Common Lamp Return
Mates to a Single JST BHR-
04VS-1 Lamp Connector
Desktop Displays
Industrial Display Controls
BENEFITS
Smooth, Flicker Free 1%-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
HI
HI
UNIVERSAL DIMMING INPUT
"PWM", V
DC
, OR POTENTIOMETER
Lamp Current 10 to 14mA in Steps
DC Voltage
Source
Potentiometer
PWM
Signal
INPUT
Microsemi
123
W
4
PACKAGE ORDER INFO
PART NUMBER OUTPUT CONNECTOR
I
NVERTER MATES DIRECTLY TO
PANEL CONNECTORS
LXMG1626-05-67 JST SM04(4.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-07A00 JST BHR-04VS-1
L
L
X
X
M
M
G
G
1
1
6
6
2
2
6
6
-
-
0
0
5
5
-
-
6
6
7
7
PRODUCTION DATASHEET
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright © 2005
Rev. 1.0, 2007-01-04
WWW.Microsemi .COM
PanelMatch
™
LXMG1626-05-67
5V 10W Dual CCFL Programmable Inverter Module
TM
®
ABSOLUTE MAXIMUM RATINGS (NOTE 1)
Input Signal Voltage (V
IN1
)....................................................................................................................................-0.3V to 6.5V
Input Power....................................................................................................................................................................... 14W
Output Voltage, no load ............................................................................................................ Internally Limited to 1800V
RMS
Output Current ............................................................................................................................7.5mA
RMS
(Internally Limited)
Output Power ................................................................................................................................................................... 10W
Input Signal Voltage (
SLEEP
Input)....................................................................................................................-0.3V to 5.5V
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)
4.75 5 5.25
Input Supply Voltage Range (Functional)
V
IN1
4.5 5 5.5
V
Output Power P
O
8 9 W
Linear BRITE Control Input Voltage Range V
BRT_ADJ
0 2.0 V
Lamp Operating Voltage V
LAMP
460 540 620* V
RMS
Lamp Current (Full Brightness) I
OLAMP
10 14 mA
RMS
Operating Ambient Temperature Range T
A
-20 70 °C
* At higher lamp voltages the maximum lamp current is limited to about 12mA @ V
IN1
= 4.75V, lamp voltage is based on single lamp measurements
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of
25°C except where otherwise noted.
LXMG1626-05-67
Parameter Symbol Test Conditions
Min Typ Max
Units
`
OUTPUT PIN CHARACTERISTICS
Full Bright Lamp Current (two lamps) I
L(MAX)
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 5V
DC
I
SET1
= Ground, I
SET2
= Ground
8.8 10 11 mA
RMS
Full Bright Lamp Current (two lamps) I
L(MAX)
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 5V
DC
I
SET1
= Ground, I
SET2
= Open
10.3 11.5 12.5 mA
RMS
Full Bright Lamp Current ((two lamps) I
L(MAX)
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 5V
DC
I
SET1
= Open, I
SET2
= Ground
11.3 12.8 13.8 mA
RMS
Full Bright Lamp Current ((two lamps) I
L(MAX)
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 5V
DC
I
SET1
= Open, I
SET2
= Open
12.3 14 15 mA
RMS
Output Current Lamp to Lamp
Deviation
I
LL%DEV
V
BRT_ADJ
> 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 5V
DC
I
SET1
= Open, I
SET2
= Open
5 %
Min. Average Lamp Current
(each output)
I
L(MIN)
V
BRT_ADJ
= 0V
DC
,
SLEEP
> 2.0V, V
IN1
= 5V
DC
I
SET1
= I
SET2
= GND; I
MIN
= I
MAX
* √ of % Duty Cycle
1.4 mA
RMS
Lamp Start Voltage V
LS
-20°C < T
A
< 70°C, V
IN1
> 4.5V
DC
1350 1500 V
RMS
Operating Frequency f
O
V
BRT_ADJ
= 2.0V
DC
,
SLEEP
> 2.0V, V
IN1
= 5V
62 65 68 kHz
Burst Frequency f
BURST
Output Burst Frequency 242 254 266 Hz
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PRODUCTION DATASHEET
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright © 2005
Rev. 1.0, 2007-01-04
WWW.Microsemi .COM
PanelMatch
™
LXMG1626-05-67
5V 10W Dual 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.
LXMG1626-05-67
Parameter Symbol Test Conditions
Min Typ Max
Units
`
BRITE INPUT
V
BRT_ADJ
= 0V
DC
-13.2 µA
DC
Input Current I
BRT
V
BRT_ADJ
= 3V
DC
1 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 V
DC
`
SLEEP INPUT
RUN Mode
SLEEP
V
2.1 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
= 5V
DC
,
SLEEP
< 0.8V
0.0 10 50 µA
DC
Run Current I
IN(RUN)
V
IN1
= 5V
DC
,
SLEEP
≥ 2.0V, I
SET1
= Ground
I
SET2
= Open, V
LAMP
= 520V
RMS
1490 mA
DC
Efficiency
η
V
IN1
= 5V
DC
,
SLEEP
≥ 2.0V, I
SET1
= Ground
I
SET2
= Open, V
LAMP
= 520V
RMS
80 %
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 (4.75V < V
IN1
< 5.25V)
CN1-3
CN1-4
GND Power Supply Return
CN1-5
SLEEP
ON/OFF Control. (0V <
SLEEP
< 0.8 = OFF,
SLEEP
>= 2.1V = ON
CN1-6 BRITE Brightness Control (0V 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 for LXMG1626-05-67 (JST SM04(4.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-07A00 )
CN2-1 V
HI1
High voltage connection to high Side of lamp. Connect to lamp terminal with shortest lead length.
DO NOT connect to Ground.
CN2-2 V
HI2
High voltage connection to high Side of lamp. Connect to lamp terminal with shortest lead length.
DO NOT connect to Ground.
CN2-3 NC No Connect
CN2-4 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

LXMG1626-05-67

Mfr. #:
Buy LXMG1626-05-67
Manufacturer:
Microchip / Microsemi
Description:
EL/CCFL Inverters & Accessories
Lifecycle:
New from this manufacturer.
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