LXM1643-12-61 MICROSEMI, LXM1643-12-61 Datasheet

LXM1643-12-61

Manufacturer Part Number
LXM1643-12-61
Description
Manufacturer
MICROSEMI
Datasheet

Specifications of LXM1643-12-61

Operating Temperature Classification
Commercial
Pin Count
20
Lead Free Status / Rohs Status
Not Compliant
Copyright © 2002
Rev. 1.0b, 2005-01-17
Output Direct Drive™ CCFL (Cold
Cathode
Module specifically designed for driving
LCD backlight lamps.
driving typical 12.1” to 18.1” TFT panels.
designer with a vastly superior display
brightness range then typical with analog
(amplitude control) dimming.
that permits brightness control from either
a DC voltage source or a PWM signal or
external Potentiometer.
output current is externally programmable
over a range of 10 to 16mA (per lamp pair)
in 2mA steps to allow the inverter to
properly match to a wide array of LCD
panel lamp current specifications.
Technique provides flicker-free brightness
control in any wide range typically (50:1+)
dimming application.
IMPORTANT: For the most current data consult MICROSEMI’s website:
Protected By U.S. Patents: 5,923,129; 5,930,121; 6,198,234; Patents Pending
LXM1643-12-61
P
The LXM1643-12-61 is a Quad 6W
LXM1643
The inverter includes a dimming input
RangeMAX
ART
N
UMBER
I N T E G R A T E D
Fluorescent
modules
Digital
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Two JST SM04(4.0)B-BHS-1-TB or Yeon Ho 20015WR-07A00
Lamp)
Universal Dimming Input PWM, VDC, or
Selectable Maximum Output Current 10mA to 16mA
It is ideal for
The maximum
provides
D E S C R I P T I O N
Dimming
Inverter
P R O D U C T S
the
energizes
specifically to ensure that no premature
lamp degradation occurs, while allowing
significant power savings at lower dim
levels.
the system battery or AC adapter directly
to high frequency, high-voltage waves
required to ignite and operate CCFL
lamps.
intended for panel assemblies where lamp
pairs share close proximity with one
another.
should
applications
connections or where lamps are spaced
well apart from each other.
are stable fixed-frequency operation,
secondary-side strike-voltage regulation
and both open/shorted lamp protection
with fault timeout.
DC Voltage
O
P A C K A G E O R D E R I N F O
P R O D U C T H I G H L I G H T
Source
UTPUT
The resultant “burst drive” that
The modules convert DC voltage from
The LXM1643-12-61
Other benefits of this new topology
Integrated Products
http://www.microsemi.com
Microsemi
C
be
The LXM1643-12-62 inverter
ONNECTORS
Potentiometer
the
P
with
P
considered
a
a
lamp
n
n
12V Quad 6W CCFL Programmable Inverter Module
e
e
l
l
individual
M
M
Signal
was
PWM
a
a
t
t
c
c
for
inverter is
h
h
designed
P
RODUCTION
panel
lamp
D
I
NVERTER
ATASHEET
Externally Programmable
Maximum Output Current
Easy to Use Brightness
Control
RangeMAX Wide Range
Dimming
Output Short-Circuit Protection
and Automatic Strike-Voltage
Regulation and Timeout
Fixed Frequency Operation
Rated From -20 to 70°C
UL 60950 E175910
High Brightness Displays
Desktop Displays
Industrial Display Controls
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
TO
RMS
K E Y F E A T U R E S
A P P L I C A T I O N S
JST BHR-04VS-1
P
ANEL
B E N E F I T S
LXM1643-12-61
M
C
ATES
ONNECTORS
D
IRECTLY
Page 1

Related parts for LXM1643-12-61

LXM1643-12-61 Summary of contents

Page 1

... The LXM1643-12- Quad 6W Output Direct Drive™ CCFL (Cold Cathode Fluorescent Lamp) Inverter Module specifically designed for driving LCD backlight lamps ideal for driving typical 12.1” to 18.1” TFT panels. LXM1643 modules provides designer with a vastly superior display brightness range then typical with analog (amplitude control) dimming ...

Page 2

... Output Burst Frequency BURST Microsemi Integrated Products h ™ LXM1643-12-61 h ™ RODUCTION ATASHEET ( (Internally Limited) RMS Units R.C. Max 12 13.2 12 13.8 5.0 6.0* 2.0 625 720 LXM1643-12-61 Min Typ Max = 12V IN1 12V IN1 DC 10 12V IN1 DC 12 12V IN1 DC 14 12V IN1 DC 3 ...

Page 3

... LAMP RMS ESCRIPTION < 13.2V) IN1 SLEEP < 0.8 = OFF, SLEEP ). 2.0V gives maximum lamp current Microsemi Integrated Products h ™ LXM1643-12-61 h ™ RODUCTION ATASHEET LXM1643-12-61 Min Typ Max -300 50 2.0 2.05 0.4 0.5 2.0 V IN1 -0.3 0.8 0.4 -300 0 Open 1750 = Open 85 >= 2. Units µ ...

Page 4

... PCB tolerances ± 0.5mm High Voltage Transformers Controller Comparator V IN1 + Output Driver - OC SENSE Gen OV SENSE I SENSE Microsemi Integrated Products h ™ LXM1643-12-61 h ™ RODUCTION ATASHEET Nominal Output Current 16.0mA 14.0mA 12.0mA 10.0mA 4mm 0.16in 28mm ±.02mm SM04(4.0)B-BHS-1-TB 1.10in. (JST) × OUNTING OLES DIA ...

Page 5

... Inputs) inverter will shutdown. In order to restart the inverter it is necessary to toggle the sleep input or cycle the V supply. In the timeout shutdown mode input drain current will be about 8mA. Microsemi Integrated Products h ™ LXM1643-12-61 h ™ RODUCTION ATASHEET SLEEP input. to high voltage wire from the lamp. Connect ...

Page 6

... Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © 2002 Rev. 1.0b, 2005-01-17 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 12V Quad 6W CCFL Programmable Inverter Module Microsemi Integrated Products h ™ LXM1643-12-61 h ™ RODUCTION ATASHEET Page 6 ...

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