LXMG1626-05-45 Datasheet, PDF (1/6 Pages) Microsemi Corporation – 5V Dual 6W CCFL Programmable Inverter Module

PanelMatch™ StayLit™
LXMG1626-05-45
®
5V Dual 6W CCFL Programmable Inverter Module
TM
PRODUCTION DATASHEET
DESCRIPTION
The LXMG1626-05-45 is a Dual 6W In addition when only one of the two
Output Direct Drive™ CCFL (Cold lamps in the LCD fails open, the second
Cathode Fluorescent Lamp) Inverter lamp will continue to operate with a
Module specifically designed to be FAULT signal toggling to indicate the
compatible with variety of LCD panels failed condition, StayLit™feature.
that have both lamps on one side of the RangeMAX Digital Dimming
panel and use a single common lamp Technique provides flicker-free
return wire.
brightness control in any wide range
LXMG1626 modules provide the typically (100:1+) dimming application.
designer with a vastly superior display The resultant “burst drive” that
brightness range. This brightness range is energizes the lamp is designed
achievable with virtually any LCD display. specifically to ensure that no premature
The modules are available with a lamp degradation occurs, while allowing
dimming input that permits brightness significant power savings at lower dim
control from either, a DC voltage source, levels.
a PWM signal or external potentiometer.
The design utilizes Microsemi’s
The maximum output current is highly integrated LX1691B backlight
externally programmable (through the controller to convert DC voltage from the
input connector) at either 10mA or 12mA system battery or AC adapter directly to
(5mA or 6mA per lamp). This allows the high frequency, high-voltage waves
inverter to match the panel’s lamp current required to ignite and operate CCFL
specifications, or it can be used to lamps.
purposely drive the lamps at a lower or Other benefits of this new topology
higher current to decrease or increase are stable fixed-frequency operation,
nominal brightness. The inverter also has secondary-side strike-voltage regulation
a dedicated FAULT pin that indicates an and both open/shorted lamp protection
open/shorted lamp condition.
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
KEY FEATURES
ƒ Externally Programmable
Maximum Output Current
ƒ Easy to Use Brightness Control
ƒ RangeMAX Wide Range Dimming
ƒ Output Open & Short-Circuit
Protection and Automatic Strike-
Voltage Regulation and Timeout
ƒ StayLit™ Continued Operation
with Single Open Lamp Failure
ƒ Fixed Frequency Operation
ƒ Fault Output Signal
ƒ Rated From -30°C to 80°C
ƒ RoHS Compliant
ƒ UL60950 E175910
ƒ
APPLICATIONS
ƒ Dual lamp LCD’s requiring a
shared common lamp return
ƒ Mates to a single JST BHR-04
VS-1 lamp connector
ƒ Industrial Display Controls
BENEFITS
ƒ Smooth, Flicker Free 1%-100%
Full-Range Brightness Control
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
Potentiometer
PWM
Signal
Lamp
Fault
Signal
W
Microsemi
UNIVERSAL DIMMING INPUT
"PWM", V_DC, OR POTENTIOMETER
Lamp current 5 or 6mA per Lamp
PART NUMBER
LXMG1626-05-45
PACKAGE ORDER INFO
OUTPUT CONNECTOR
INVERTER MATES DIRECTLY
TO PANEL CONNECTORS
JST SM04(4.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-07A00
JST BHR-04VS-1
Copyright © 2005
Rev. 1.0, 2007-01-24
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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