LXM1620-01
D
I R E C T
D
R I V E
D
U A L
L
A M P
CCFL I
N V E RT E R
M
O D U L E
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O VA T I O N
P
R E L I M I N A R Y
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A T A
S
H E E T
DESCRIPTION
The Dual Output Module Ideal for
Desktop and Industrial Applications.
The
LXM1620 Direct Drive
TM
Cold Cathode Fluo-
rescent Lamp (CCFL) Inverter is a single mod-
ule designed to drive two lamps and is targeted
for use with desktop Liquid Crystal Display
(LCD) and industrial LCD panels typically rang-
ing in size from 10.4-inches to 17-inches. This
two output inverter is the ideal solution to power
virtually any two lamp application.
Direct Drive Technology.
The module de-
sign is based on a new patented
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Direct Drive
topology, which provides a number of cost and
performance advantages. The LXM1620-01
Direct Drive inverters eliminate the classic reso-
nant inductor and capacitors, thus reducing cost
and allowing a substantial reduction in module
size.
Fixed-Frequency Operation.
Other ben-
efits of this new topology are fixed-frequency
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 Ap-
plications.
Our multi-output inverters are de-
signed to keep your application operating at near
normal brightness in the event that a lamp fails.
This allows the display to remain "on-line" until
lamp replacement is convenient.
Dual Module Uses Standard Power
Supply.
The LXM1620 module uses a standard
12V 鹵10% input supply. It also ensures nomi-
nal power consumption with 2 lamps requiring
only 8 watts. Lamp current is fully regulated
with respect to input voltage and output imped-
ance variations.
Dimming Features.
The LXM1620 mod-
ules are equipped with a dimming input that per-
mits brightness control from an external poten-
tiometer or DC voltage. In addition, the sleep
input reduces module power to a few microwatts
in shut down mode. All LXM1620 modules fea-
ture both output open and short-circuit protec-
tion.
The Most Efficient and
Cost-effective Backlight Inverter for Desk-
top/Industrial Applications.
Linfinity's pro-
prietary Direct Drive architecture is the highest
efficiency, small form factor solution for all
multiple lamp applications. The LXM1620 is
fully customizable (electronically and mechani-
cally) to specific customer requirements.
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K E Y F E AT U R E S
s
s
s
s
s
s
s
s
s
s
Drive Two Lamps With One Module
Small, Compact Size
High Efficiency
Multiple Outputs Provide Easy LCD
Connections
Low EMI And Noise
Low Power Sleep Mode
Output Short And Open Circuit Protection
3:1 Dimming Control
Adjustable Lamp Current Up To 6.0mA Per
Lamp
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
US Patent Numbers: 5923129 & 5930121
NOTE:
For current data & package dimensions, visit our web site:
http://www.linfinity.com.
PRODUCT HIGHLIGHT
LXM1620 "U
N I V E R S A L
" M
O D U L E
C
O N N E C T I O N
O
P T I O N S
Dual Connector Configuration
Single Connector Configuration
CN2
CCFL Lamp
CN2
LXM1620-01
LXM1620-01
CN1
CN1
CCFL Lamps
CN3
CCFL Lamp
CN3
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
Part Number
Lamp Run Voltage
Lamp Current
LXM1620-01
500 - 750V
RMS
6mA
Copyright 漏 2000
Rev. 0.9 10/00
L
IN
F
INITY
M
ICROELECTRONICS
I
NC
.
11861 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841, 714-898-8121, F
AX
: 714-893-2570
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