Microsemi

Analog Mixed Signal Group

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

Page 1

Copyright

© 2007

Rev. 1.1, 2010-02-26

P

"

LXMG1617A-03-2x

3.3V 2.2W CCFL Programmable Inverter Module

TM

®

DESCRIPTION

The LXMG1617A-03-2x™ 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

typical 3.9” to 6.4” TFT panels.

LXMG1617A

modules

provide

the

designer with a superior display brightness

range. This brightness range is achievable

with virtually any LCD display.

The

maximum

output

current

is

externally programmable over a range of

3.5mA

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.

The

resultant

“burst

drive”

that

energizes the lamp was designed to ensure

that

no

premature

lamp

degradation

occurs, while allowing significant power

savings at lower dim levels.

The modules convert DC voltage from

the system battery or AC adapter directly

to high frequency, high-voltage waves

required to ignite and operate CCFL

lamps. A 5V input inverter is also

available (LXMG1617A-05-2x).

The LXMG1617A modules contain

the newer highly integrated LX1691B

CCFL backlight controller to provide

wider dimming range (typically 100:1+)

and 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 LXMG1617A (“A Series”)

modules are designed therefore as a

higher

performance

near

drop-in-

replacement (see BRITE minimum input

voltage level and Burst Frequency) for

those

customers

and

applications

currently using the LXMG1617 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

RangeMAX Wide Range

Dimming (typ. 100:1+)

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

Smooth, Flicker Free Full-

Range Brightness Control

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

TO

LXMG1617A-03-21

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

JST BHR-03VS-1

LXMG1617A-03-22

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

JST BHSR-02VS-1