RangeMAX鈩?/div>
LXM1614-14-11
D
UAL
D
IMMING
, E
XTENDED TEMPEERATURE
CCFL I
NVERTER
M
ODULE
P
RELIMINARY
D
ATASHEET
Dual Drive, RangeMAX Wide Range
Dimming, Single Output Inverter.
The
Independent Brightness
W W W .
Microsemi
.
COM
LXM1614 series of Direct Drive鈩?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 LXM1614 family offers two separate
brightness controls for lamp current
amplitude and duty cycle.
This
innovation of dual brightness control with
extended dimming, combined with
Linfinity鈥檚 high efficiency Direct Drive
topology, provides the industry鈥檚 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.
The
inverters
provide
brightness
ad-
justments utilizing standard lamp current
amplitude control as well as supporting
Linfinity鈥檚 RangeMAX wide range
dimming technique. Combining both
brightness controls into a single inverter
supports the 鈥渟elf heating鈥?lamp tech-
nology by using a 鈥渂oost鈥?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 LXM1614 brightness
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
鈥渋nstant-bright鈥?feature and minimize
warm up time.
Dual Drive Dimming Control.
(continued next page)
Controls For Lamp Current
Amplitude and Duty Cycle
RangeMAX 1-100% Wide
Range Dimming with
Controlled Overdrive Boost
On-Board Thermister auto-
matically limits maximum
lamp current
Supports Wide Input Voltage
Range 9-16V
High Efficiency, Single Stage
Direct Drive Topology
-40擄C to +85擄C Ambient
Temperature Operation
Output Open/Short Circuit
Protection
Up to 1800V Output Voltage
Capability
Single side PCB Component
Layout
Self Heating And High
Pressure Lamp Technology
Automotive Navigation, GPS
IMPORTANT:
For the most current data, consult
MICROSEMI
鈥檚 website:
http://www.microsemi.com
Systems, Auto PC
Extended Cold Temperature
Operation
Aircraft Cabin Displays
Low Ambient Light Conditions
Requiring Wide Range
Dimming
鈥淚nstant On鈥?To Full
Brightness For Large LCD
Backlight Panels
Industrial Notebook And
Workstations
Controlled overdrive mode of
LXM1614 Inverter accelerates
lamp warm-up time to provide
maximum light output even in
extreme temperature envi-
ronments
LXM1614-14-11
LXM1614-14-11
P
ART
N
UMBER
LXM1614-14-11
Copyright
漏
2000
Rev. 0.3b,2000-11-20
O
UTPUT
C
ONNECTOR
JST SM02(8.0)B-BHS-1-TB
I
NVERTER
M
ATES
D
IRECTLY TO
P
ANEL
C
ONNECTORS
BHR-03VS-1
Page 1
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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