Microsemi

Analog Mixed Signal Group

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, 800-877-6458, Fax: 714-893-2570

Page 1

Copyright

© 2007

Rev. 1.1,2009-11-03

PanelMatch

™ "A Series"

LXMG1618A-05-2x

5V 2.2W CCFL Programmable Inverter Module

TM

®

DESCRIPTION

The LXMG1618A-05-2x™ is a Single

Output 2.2W Direct Drive™ CCFL (Cold

Cathode

Fluorescent

Lamp)

Inverter

Module

designed

for

driving

LCD

backlight lamps.

It is ideal for driving

typically 3.9” to 6.4” panels.

The

maximum

output

current

is

externally programmable over a range of

3.5 to 5mA in 0.5mA steps (PanelMatch)

to allow the inverter to properly match to a

wide array of LCD panel lamp current

specifications. The modules include a

dimming input that permits brightness

control from a DC voltage source, a PWM

signal or an external potentiometer.

LXMG1618A

modules

unlike

the

LXMG1617A series do not provide wide

range

‘burst’

mode

dimming,

rather

dimming is provided by amplitude control

of the output current waveform, and this

limits the potential dim range to typically

less than 5:1.

The module converts a DC voltage

from the system battery, or AC adapter

directly to high frequency, high-voltage

waveform required to ignite and operate

CCFL lamps. A 3.3V input inverter is

also available (LXMG1618A-03-2x).

The LXMG1618A modules contain

the newer highly integrated LX1691B

CCFL backlight controller to provide a

wider temperature range (-30°C to 80°C)

compared to the existing solutions offered

by Microsemi.

Other

benefits

of

the

inverter’s

topology include stable fixed-frequency

operation, secondary-side strike voltage

regulation and both open/shorted lamp

protection with fault timeout.

The new LXMG1618A (“A Series”)

modules are designed therefore as a

higher

performance

near

drop-in

replacement (see BRITE minimum input)

for those customers and applications

currently using the LXMG1618 inverters.

Protected By U.S. Patents: 5,923,129; 5,930,121; 6,198,234; Patents Pending

KEY FEA T URES

Externally Programmable

Maximum Output Current

Easy to Use Brightness

Control

Output Short-Circuit Protection

and Automatic Strike-Voltage

Regulation and Timeout

Analog Current Amplitude

Dimming Method

Fixed Frequency Operation

Rated From -30°C to 80°C

UL60950 E175910

RoHS Compliant

APPLICA T IONS

Medical Instrument Displays

Portable Instrumentation

(GPS, etc.)

Industrial Display Controls

BENEFITS

Programmable Output Current

Allows Inverter to Mate with a

Wide Variety of LCD Panel’s

Specifications

Output Open Circuit Voltage

Regulation Minimizes Corona

Discharge For High Reliability

PRODUCT HIGHLIG HT

DC Voltage

Source

Potentiometer

PWM

Signal

PACKAGE ORDER INFO

LXMG1618A-05-21

JST SM02(8.0)B-BHS-1-TB (LF)(SN) or Yeon Ho 20015WR-05A00 or equivalent

JST BHR-03VS-1

LXMG1618A-05-22

JST SM02B-BHSS-1-TB (LF)(SN) or Yeon Ho 35001WR-02A00 or equivalent

JST BHSR-02VS-1