Samsung SC-MM11 User Manual download pdf

P

RODUCTION

D

ATASHEET

Microsemi

Integrated Products

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

Page 1

Copyright © 2002

Rev. 1.0a, 2005-01-17

WWW.Microsemi .COM

PanelMatch

™

LXM1623-05-44

5V Dual 4W CCFL Programmable Inverter Module

INTEGRATED PRODUCTS

DESCRIPTION

The LXM1623-05-44 is a Dual 4W

Output Direct Drive™ CCFL (Cold

Cathode Fluorescent Lamp) Inverter

Module specifically designed to be

compatible with the Sharp LQ104S1DG21

/ 51 10.4”, LQ121S1DG31 / 41 12.1” as

well as the Samsung LTM121SI-T01

12.1” or similar dual lamp displays that

have both individual lamp output

connectors on the top side of the panel

LXM1623 modules provide the

designer with a vastly superior display

brightness range. This brightness range is

achievable with virtually any LCD display.

The modules are available with a

dimming input that permits brightness

control from either, a DC voltage source,

a PWM signal or external potentiometer.

The maximum output current is

externally programmable (through the

input connector) over a range of 5.2 to

6.7mA in 0.5mA steps. This allows the

inverter to match the panel’s lamp current

specifications, or it can be used to

purposely drive the lamps at a lower

current to save power or lower nominal

brightness.

RangeMAX™ Digital Dimming

Technique provides flicker-free

brightness control in any wide range

typically (50:1+) dimming application.

The resultant “burst drive” that

energizes the lamp is designed

specifically 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 12V input inverter is also

available (LXM1623-12-44).

The modules design utilizes

Microsemi’s LX1689 backlight

controller, which provides a number of

cost and performance advantages due to

the controller’s high level of integration.

Other benefits of this new topology

are stable fixed-frequency operation,

secondary-side strike-voltage regulation,

and both open/shorted lamp protection

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

KEY FEATURES

 Externally Programmable

Maximum Output Current

 Easy to Use Brightness Control

 RangeMAX Wide Range Dimming

 Output Open & Short-Circuit

Protection and Automatic Strike-

Voltage Regulation and Timeout

 Fixed Frequency Operation

 Rated From -20 to 70°C



APPLICATIONS

 LCD’s Requiring Both Output

Connectors on One Side of

Panel

 Sharp LQ104S1DG21/51 and

LQ121S1DG31 / 41

 Samsung LTM121SI-T01

 Desktop Displays



Industrial Display Controls

BENEFITS

 Smooth, Flicker Free 2%-100%

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 HIGHLIGHT

DC Voltage

Source

Potentiometer

PWM

Signal

U

NIVERSAL

D

IMMING

I

NPUT

"

PWM

",

V

DC

, OR

P

OTENTIOMETER

1

2

3

W

1

2

3

W

S

ELECTABLE

M

AXIMUM

O

UTPUT

C

URRENT 5.2M

A

TO 6.7M

A

RMS

PACKAGE ORDER INFO

P

ART

N

UMBER

O

UTPUT

C

ONNECTOR

I

NVERTER

M

ATES

D

IRECTLY

TO

P

ANEL

C

ONNECTORS

LXM1623-05-44

JST SM02(8.0)B-BHS-1-TB or

Yeon Ho 20015WR-05A00

JST BHR-03VS-1

L

L

X

X

M

M

1

1

6

6

2

2

3

3

-

-

0

0

5

5

-

-

4

4

4

4

1 2 3 4 5 6

Summary of Contents

Page 1 - INTEGRATED PRODUCTS

PRODUCTIONDATASHEET Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1Copyright ©

Page 2 - Microsemi

PRODUCTIONDATASHEET Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2Copyright ©

Page 3 - WWW.Microsemi .COM

PRODUCTIONDATASHEET Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 3Copyright ©

Page 4

PRODUCTIONDATASHEET Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 4Copyright ©

Page 5

PRODUCTIONDATASHEET Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5Copyright ©

Page 6

PRODUCTIONDATASHEET Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 6Copyright ©

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