LXM1624-12-4X Datasheet, PDF (1/6 Pages) Microsemi Corporation – 12V Dual 4W CCFL Programmable Inverter Module

PanelMatch™
LXM1624-12-4x
INTEGRATED PRODUCTS
12V Dual 4W CCFL Programmable Inverter Module
PRODUCTION DATASHEET
DESCRIPTION
The LXM1624-12-4x is a Dual 4W For applications not requiring wide
Output Direct Drive™ CCFL (Cold range dimming, amplitude control results
Cathode Fluorescent Lamp) Inverter in lower ripple on the input supply and
Module specifically designed for driving reduced potential transient noise
LCD backlight lamps. It is ideal for generation. Many STN type panels are
driving typical 6.4” to 10.4” TFT panels. particularly well suited for current
The modules are available with a amplitude dimming.
dimming input that permits brightness The modules convert DC voltage from
control from either a DC voltage source or the system battery or AC adapter directly
a PWM signal or external Potentiometer. to high frequency, high-voltage waves
The maximum output current is externally required to ignite and operate CCFL
programmable over a range of 5 to 6.5mA lamps.
in 0.5mA steps to allow the inverter to The modules design is based on
properly match to a wide array of LCD Microsemi’s new LX1689 backlight
panel lamp current specifications.
controller, which provides a number of
LXM1624 modules unlike the cost and performance advantages due to
LXM1623 series does not provide wide the controller’s high level of integration.
range ‘burst’ mode dimming, rather Other benefits of this new topology
dimming is provided by amplitude control are stable fixed-frequency operation,
of the output current waveform, this limits secondary-side strike-voltage regulation
the potential dim range to typically less and both open/shorted lamp protection
than 5:1.
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
U N IV E R S A L D IM M IN G IN P U T
"PW M ",
V,
DC
OR
P O T E N T IO M E T E R
KEY FEATURES
ƒ Externally Programmable
Maximum Output Current
ƒ Easy to Use Brightness Control
ƒ Analog Current Amplitude
Dimming Method
ƒ Output Open/Short-Circuit
Protection and Automatic Strike-
Voltage Regulation and Timeout
ƒ Fixed Frequency Operation
ƒ Rated From -20 to 70°C
ƒ UL60950 E175910
APPLICATIONS
ƒ High Brightness Displays
ƒ Portable Instrumentation
ƒ Desktop Displays
ƒ Industrial Display Controls
BENEFITS
ƒ Compact, Low Profile Design
ƒ Programmable output current
allows inverter to mate with a
wide variety of LCD panel’s
specifications
ƒ Output Open Circuit Voltage
Regulation Minimizes Corona
Discharge For High Reliability
DC Voltage
Source
P o ten tio m eter
PWM
Signal
W
S E L E C T A B L E M A X IM U M O U T P U T C U R R E N T 5 M A
T O 6 .5 M A _{RM S}
PACKAGE ORDER INFO
PART NUMBER
LXM1624-12-41
LXM1624-12-42
LXM1624-12-43
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
Copyright © 2002
Rev. 1.0b, 2005-01-17
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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