LXMG1800_LS Datasheet, PDF (1/4 Pages) Microsemi Corporation – Ambient Light Sensor Board Assembly

VEasyLIT™
LXMG1800_LS
®
Ambient Light Sensor Board Assembly
TM
PRODUCTION DATASHEET
•
DESCRIPTION
KEY FEATURES
The LXMG1800_LS Ambient Light
The board comes preprogrammed to
Sensor Board Assembly provides a ‘plug- drive the minimum inverter lamp
n-play’ automatic lamp dimming solution. brightness at complete darkness and full
It is designed particularly to mate with brightness when about 120 lux strikes the
Microsemi’s LXMG1811-05-6xS (5V sensor. However the gain that determines
input) and LXMG1813-12-6xS (8.4V to this range is user adjustable both up or
16V) single lamp CCFL inverters.
down by adding or removing solder
Using the included wire harness and bridge(s) to short jumpers J1 to J3 on the
connector the LXMG1800_LS will plug board. There are eight gain settings
into connector CN2 of the CCFL inverter possible to tailor the sensor board to match
and provide an automatic dimming a wide variety of lighting configurations.
solution based on ambient lighting
In addition connecting an external
conditions. This saves the time and effort 500k rheostat to the inverter’s BRITE
needed to properly integrate this feature input pin will override the sensor output
with an inverter.
allowing further dimming. This rheostat
The board is designed to sense light (or a selected fixed resistor) could also be
through a hole in the bottom of the board used to shift the sensor’s range down thus
assembly so it can be easily flush mounted trimming the gain.
against the back of the display housing.
The small size of the sensor board
Ambient light can then be directed to the permits mounting it in the typically narrow
sensor through a small hole in the display space in the housing surrounding the LCD
bezel, a panel mounted light pipe, or display. The length of the included wire
transparent or translucent opening in the harness (about 16”) allows flexible
display housing.
mounting of the sensor with respect to the
inverter mounting location.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
• Save Energy By Automatically
Adjusting Display Brightness to
Meet Ambient Light Conditions
• Uses Microsemi’s LX1974 Ambient
Light Detector
• Plug-in Automatic Dimming
• Rated From -30°C to 80°C
• Size 31mm x 9.5mm x 2.5mm
• Easy Flush Mounting Against
Display Bezel
• Includes 16” Leads For Flexible
Mounting in System
• User Programmable Gain Settings
• Compatible With Microsemi’s
Single Lamp Inverters:
LXMG1811-05-6xS
LXMG1813-12-6xS
APPLICATIONS
• Single Lamp CCFL LCD Displays
• Portable Instrumentation Displays
• Medical Instrument Displays
PRODUCT HIGHLIGHT
VEASYLIT™
LXMG1800_LS
AMBIENT LIGHT SENSOR
BOARD ASSEMBLY
W
LXMG1811-05-6XS (5V)
OR
LXMG1813-12-6XS (8.4V TO 16V)
RoHS Compliant
LXMG1800_LS
ORDER INFORMATION
Matching Microsemi Inverters
LXMG1811-05-61S or LXMG1811-05-62S
LXMG1813-12-61S or LXMG1813-12-62S
Copyright © 2008
Rev. 1.0, 2008-12-12
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 800-877-6458, 714-898-8121, Fax: [phone]
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