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PDF LXM1623-12-4X Data sheet ( Hoja de datos )
| Número de pieza | LXM1623-12-4X | |
| Descripción | 12V Dual 4W CCFL Programmable Inverter Module | |
| Fabricantes | Microsemi | |
| Logotipo |  |
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INTEGRATED
PRODUCTS
PanelMatch™
LXM1623-12-4x
www.DataSheet4U.com
12V Dual 4W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
DESCRIPTION
The LXM1623-12-4x is a Dual 4W The resultant “burst drive” that
Output Direct Drive™ CCFL (Cold energizes the lamp was designed
Cathode Fluorescent Lamp) Inverter specifically to ensure that no premature
Module specifically designed for driving lamp degradation occurs, while allowing
LCD backlight lamps. It is ideal for significant power savings at lower dim
driving typical 6.4” to 10.4” TFT panels. levels.
LXM1623 modules provide the The modules convert DC voltage from
designer with a vastly superior display the system battery or AC adapter directly
brightness range. This brightness range is to high frequency, high-voltage waves
achievable with virtually any LCD display. required to ignite and operate CCFL
The modules are available with a lamps. A 5V input inverter also is
dimming input that permits brightness available (LXM1623-05-4x), as well as
control from either a DC voltage source or 6W versions (LXM1623-xx-6x) for
a PWM signal or external Potentiometer. driving larger higher voltage panels.
The maximum output current is externally The modules design is based on
programmable over a range of 5 to 6.5mA Microsemi’s new LX1689 backlight
in 0.5mA steps to allow the inverter to controller, which provides a number of
properly match to a wide array of LCD cost and performance advantages due to
panel lamp current specifications.
the controller’s high level of integration.
RangeMAX Digital Dimming Other benefits of this new topology
Technique provides flicker-free brightness are stable fixed-frequency operation,
control in any wide range typically (50:1+) secondary-side strike-voltage regulation
dimming application.
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
UNIVERSAL DIMMING INPUT
"PWM", VDC, OR POTENTIOMETER
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
APPLICATIONS
High Brightness Displays
Portable Instrumentation
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
DC Voltage
Source
Potentiometer
PWM
Signal
W
SELECTABLE MAXIMUM OUTPUT CURRENT 5MA
TO 6.5MA RMS
PART NUMBER
LXM1623-12-41
LXM1623-12-42
LXM1623-12-43
Copyright © 2002
Rev. 1.0b, 2005-01-17
PACKAGE ORDER INFO
OUTPUT CONNECTOR
JST SM02(8.0)B-BHS-1-TB or Yeon Ho 20015WR-05A00
JST SM02B-BHSS-1-TB or Yeon Ho 35001WR-02A00
Honda QZ-19-A3MYL #02
INVERTER MATES DIRECTLY
TO PANEL CONNECTORS
JST BHR-03VS-1
JST BHSR-02VS-1
Honda QZ-19-3F01
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
1 page  
INTEGRATED
PRODUCTS
PanelMatch™
LXM1623-12-4x
www.DataSheet4U.com
12V Dual 4W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
TABLE 1
OUTPUT CURRENT SETTINGS
SET1
(Pin 7)
Open*
SET2
(Pin 8)
Open*
Open*
Ground
Ground
Open*
Ground
Ground
* If driven by a logic signal it should be open collector or open drain only, not a voltage source.
Nominal Output Current
6.5mA
6.0mA
5.5mA
5.0mA
PHYSICAL DIMENSIONS
109mm
4.29in.
LXM1623-12-4X
115mm
4.52in.
CN1
GROUNDED MOUNTING HOLE
3MM X 2 DIA. ±0.08
6MM SCREW HEAD CLEARANCE
30mm
1.18in.
CN2
4mm
0.15in.
26mm
1.02in. CN3
6mm
0.23in.
1.0mm
0.0392in.
PCB tolerances ± 0.5mm
Dimensions are in millimeters (inches for reference only)
Warning
High Voltage
6.5mm Max Present at high
0.256in. side of transformer
Weight: (15g) typ.
and Output
Connector
SIMPLIFIED BLOCK DIAGRAM
V B R IT E
0.5 -
2VDC
SET1
SET2
+3V
10K
Controller
Comparator
+
Ramp
-
Transform er
Driver
+3V
10K
Ramp
Gen
High Voltage
Transform er
VIN1
OCSENSE
+3V
10K
ISENSE
OVSENSE
One of two
VHI
VLO
Copyright © 2002
Rev. 1.0b, 2005-01-17
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LXM1623-12-4X.PDF ] | |
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