LXM1640-01 Datasheet, PDF (1/5 Pages) Microsemi Corporation – DIRECT DRIVE QUAD LAMP CCFL INVERTER MODULE

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LIN D O C #: 1640
LXM1640-01
DIRECT DRIVE QUAD LAMP CCFL INVERTER MODULE
PR E L I M I N A RY D ATA S H E E T
DESCRIPTION
The Quad Output Module Ideal for
Desktop and Industrial Applications.
The LXM1640 Direct Drive^TM Cold Cathode
Fluorescent Lamp (CCFL) Inverter is a single
module designed to drive four lamps and
is targeted for use with desktop Liquid Crys-
tal Display (LCD) and industrial LCD pan-
els typically ranging in size from 14-inches
to 21-inches. This four output inverter is
the ideal solution to power virtually any
four lamp application.
Direct Drive Technology. The mod-
ule design is based on a new Direct Drive
topology, which provides a number of cost
and performance advantages. The
LXM1640-01 Direct Drive inverters eliminate
the classic resonant inductor and capaci-
tors, thus reducing cost and allowing a sub-
stantial reduction in module size.
Fixed-Frequency Operation. Other
benefits of this new topology are fixed-fre-
quency operation and secondary-side
strike-voltage regulation. Strike-voltage
regulation minimizes corona discharge in
the output transformer and related circuitry,
providing longer life and higher reliability.
Fail-safe Feature For Multiple Lamp
Applications. Our multi-output inverters
are designed to keep your application op-
erating at near normal brightness in the
event that a lamp fails. This allows the
display to remain "on-line" until lamp re-
placement is convenient.
Quad Module Uses Standard Power
Supply. The LXM1640 module uses a stan-
dard 12V input supply. It also ensures
nominal power consumption with 4 lamps
requiring only 16 watts. Lamp current is
fully regulated with respect to input volt-
age and output impedance variations.
Dimming Features. The LXM1640 mod-
ules are equipped with a dimming input
that permits brightness control from an
external potentiometer or DC voltage. In
addition, the sleep input reduces module
power to a few microwatts in shut down
mode. All LXM1640 modules feature both
output open and short-circuit protection.
The Most Efficient and Cost-effective
Backlight Inverter for Desktop/Indus-
trial Applications. Linfinity's proprietary
Direct Drive architecture is the highest ef-
ficiency, small form factor solution for all
multiple lamp applications. The LXM1640
is fully customizable (electronically and me-
chanically) to specific customer require-
ments.
IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.
KEY FEATURES
s Drive Four Lamps With One Module
s Small, Compact Size
s High Efficiency
s Multiple Output Connectors Provide Easy
LCD Connections
s Low EMI And Noise
s Low Power Sleep Mode
s Output Short And Open Circuit Protection
s 3:1 Dimming Control
s Adjustable Lamp Current Up To 6.0mA Per
Lamp
s Long Lamp Life With Soft-Start And
Accurate Lamp Current Regulation
A P P L I C AT I O N S
s Desktop LCD Monitors And Panels
s Industrial LCD Panels
s Hi-Brite Displays
BENEFITS
s Cool Operation
s Smooth, Easy-To-Use Brightness Control
s Single 12 Volt Supply
PRODUCT HIGHLIGHT
LXM1640 "UNIVERSAL" MODULE CONNECTION OPTIONS
Quad Connector Configuration
Dual Connector Configuration
CCFL Lamps
CCFL Lamps
Desktop Display
Desktop Display
M O D U L E O R D E R I N F O R M AT I O N
LXM1640-01
LINFINITY MICROELECTRONICS INC.
Copyright © 1998
Rev. 0.4 5/98
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: [phone]
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