LXM1644-12-61 Microsemi Analog Mixed Signal Group, LXM1644-12-61 Datasheet

MOD INVERTER CCFL QUAD 6W 12V

LXM1644-12-61

Manufacturer Part Number
LXM1644-12-61
Description
MOD INVERTER CCFL QUAD 6W 12V
Manufacturer
Microsemi Analog Mixed Signal Group
Series
LXM1644-12-6xr
Type
Inverters for CCFL and UV Lampsr
Datasheet

Specifications of LXM1644-12-61

Voltage - Input
12V
Output
2000V
Size / Dimension
7.40" L x 1.42" W x 0.31" H (188mm x 36mm x 8mm)
Mounting Type
Chassis Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Copyright © 2002
Rev. 0.5b, 2004-11-03
Output Direct Drive™ CCFL (Cold
Cathode
Module specifically designed for driving
LCD backlight lamps.
driving typical 12.1” to 18.1” TFT panels.
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 10 to 16mA
in 1mA steps to allow the inverter to
properly match to a wide array of LCD
panel lamp current specifications.
LXM1643 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.
http://www.microsemi.com
IMPORTANT: For the most current data and a panel to inverter cross reference, consult MICROSEMI’s website:
LXM1644-12-61
The LXM1644-12-61 is a Quad 6W
The modules are available with a
ART
LXM1644
N
UMBER
I N T E G R A T E D
Fluorescent
modules
Two JST SM04(4.0)B-BHS-1-TB or Yeon Ho 20015WR-07A00
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Lamp)
Universal Dimming Input PWM, VDC, or
Selectable Maximum Output Current 10mA to 16mA
It is ideal for
unlike
D E S C R I P T I O N
Inverter
P R O D U C T S
the
range dimming, amplitude control results
in lower ripple on the input supply and
reduced
generation. Many STN type panels are
particularly
amplitude dimming.
the system battery or AC adapter directly
to high frequency, high-voltage waves
required to ignite and operate CCFL
lamps.
tended for panel assemblies where lamp
pairs share close proximity with one
another and a common return (low side)
wire.
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
For applications not requiring wide
The modules convert DC voltage from
The LXM1644-12-61 inverter is in-
Other benefits of this new topology
Integrated Products
Microsemi
C
ONNECTORS
potential
Potentiometer
P
P
well
a
a
n
n
e
e
l
l
12V Quad 6W CCFL Programmable Inverter Module
suited
M
M
transient
a
a
t
Signal
t
PWM
c
c
h
h
for
P
current
RELIMINARY
noise
I
D
NVERTER
Externally Programmable
Maximum Output Current
Easy to Use Brightness
Control
Analog Current Amplitude
Dimming Method
Output Open/Short-Circuit
Protection and Timeout
Fixed Frequency Operation
Rated From -20 to 70°C
UL 60950 E175910
ATASHEET
High Brightness Displays
Desktop Displays
Industrial Display Controls
Compact, Low Profile
Design
Programmable output
current allows inverter to
mate with a wide variety of
LCD panel’s specifications
RMS
K E Y F E A T U R E S
A P P L I C A T I O N S
P
JST BHR-04VS-1
ANEL
B E N E F I T S
LXM1644-12-61
M
C
ATES
ONNECTORS
D
IRECTLY TO
Page 1

Related parts for LXM1644-12-61

LXM1644-12-61 Summary of contents

Page 1

... The LXM1644-12- 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. 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 ...

Page 2

... V = 2.5V , SLEEP > 2.0V BRT_ADJ DC Microsemi Integrated Products LXM1644-12- RELIMINARY ATASHEET ( (Internally Limited) RMS Units R.C. Max 12 13.2 12 13.8 5.0 6.0* 2.0 625 720 LXM1644-12-61 Min Typ Max = 12V IN1 12V IN1 DC 10 12V IN1 DC 12 12V IN1 DC 14 12V IN1 12V ...

Page 3

... I = Ground 625V SET2 LAMP RMS ESCRIPTION < 13.2V) IN1 SLEEP < 0.8 = OFF, SLEEP gives maximum lamp current. DC Microsemi Integrated Products LXM1644-12- RELIMINARY ATASHEET LXM1644-12-61 Min Typ Max -300 50 2.0 2.05 0.65* 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 T ransformers Controller and Transform er Driver SEN SEN SE I SENSE Microsemi Integrated Products LXM1644-12- RELIMINARY ATASHEET Nominal Output Current 16.0mA 14.0mA 12.0mA 10.0mA 4mm 0.16in M H OUNTING OLES DIA . Warning High Voltage Present at ...

Page 5

... In order to restart the inverter it is necessary to toggle the sleep input or cycle the V Inputs) supply. In the timeout shutdown mode input drain current will be about 8mA. Microsemi Integrated Products LXM1644-12- RELIMINARY ATASHEET SLEEP input. to high voltage wire from the lamp. Connect ...

Page 6

... Microsemi reserves the right to change or discontinue this proposed product at any time. Copyright © 2002 Rev. 0.5b, 2004-11-03 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ™ ™ 12V Quad 6W CCFL Programmable Inverter Module Microsemi Integrated Products LXM1644-12- RELIMINARY ATASHEET Page 6 ...

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