LXM1614E-14-11 Datasheet, PDF (1/9 Pages) Microsemi Corporation – DUAL DIMMING, EXTENDED TEMPERATURE CCFL INVERTER MODULE

RangeMAX™
LXM1614E-14-11
®
DUAL DIMMING, EXTENDED TEMPERATURE CCFL INVERTER MODULE
TM
PRELIMINARY DATASHEET
DESCRIPTION
Dual Drive, RangeMAX Wide Range
Dimming, Single Output Inverter. The
LXM1614E series of Direct Drive™
CCFL (Cold Cathode Fluorescent Lamp)
Inverter Modules is specifically designed
for driving LCD backlight lamps.
Although similar to the RangeMAX
LXM1612 wide range dimming inverters,
the LXM1614E family offers two
separate brightness controls for lamp
current amplitude and duty cycle. This
innovation of dual brightness control with
extended dimming, combined with
Microsemi’s high efficiency Direct Drive
topology, provides the industry’s most
feature rich, small form factor inverter
available. The wide range dimming pro-
vides exceptional display readability at
less than 1% of full brightness, allowing
both power savings and low ambient light
operating capability.
Dual Drive Dimming Control. The
inverters provide brightness ad-
justments utilizing standard lamp current
amplitude control as well as supporting
Microsemi’s RangeMAX wide range
dimming technique. Combining both
brightness controls into a single inverter
supports the “self heating” lamp tech-
nology by using a “boost” current
feature and still offers duty cycle control
for low brightness operation. This
controlled overdrive capability
eliminates the need for traditional
resistive heater wire methods to ensure
light output at extremely low
temperatures. The LXM1614E bright-
ness controls support temperature
monitoring with look-up table
applications by accepting either a PWM
input or DC voltage. Large panel lamps
with greater thermal inertia can also
utilize this “instant-bright” feature and
minimize warm up time.
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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; Patents Pending
PRODUCT HIGHLIGHT
KEY FEATURES
ƒ Independent Brightness
Controls For Lamp Current
Amplitude and Duty Cycle
ƒ RangeMAX 1-100% Wide
Range Dimming with
Controlled Overdrive Boost
ƒ On-Board Thermister auto-
matically limits maximum
lamp current
ƒ Supports Wide Input Voltage
Range 9-16V
ƒ High Efficiency, Single Stage
Direct Drive Topology
ƒ -40°C to +85°C Ambient
Temperature Operation
ƒ Output Open/Short Circuit
Protection
ƒ Up to 2000V Output Voltage
Capability
ƒ Single side PCB Component
Layout
APPLICATIONS
ƒ Self Heating And High
Pressure Lamp Technology
ƒ Automotive Navigation, GPS
Systems, Auto PC
ƒ Extended Cold Temperature
Operation
ƒ Aircraft Cabin Displays
ƒ Low Ambient Light Conditions
Requiring Wide Range
Dimming
ƒ “Instant On” To Full
Brightness For Large LCD
Backlight Panels
ƒ Industrial Notebook And
Workstations
Controlled overdrive mode of
LXM1614E Inverter accelerates
lamp warm-up time to provide
maximum light output even in
extreme temperature envi-
ronments
PART NUMBER
LXM1614E-14-11
MODULE ORDER INFO
OUTPUT CONNECTOR
JST SM02(8.0)B-BHS-1-TB
INVERTER MATES DIRECTLY TO
PANEL CONNECTORS
BHR-03VS-1
Copyright © 2004
Rev. 0.2,2005-01-14
Microsemi
Microsemi Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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