lxmg1645-24-53 Microsemi Corporation, lxmg1645-24-53 Datasheet

lxmg1645-24-53

Manufacturer Part Number

lxmg1645-24-53

Description

24v Quad 5w Ccfl Inverter Module

Manufacturer

Microsemi Corporation

Datasheet

1.LXMG1645-24-53.pdf (7 pages)

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Rev. 1.0, 2010-10-13

Output CCFL (Cold Cathode Fluorescent

Lamp)

designed for driving NEC NL12876BC26-

25 LCD panel or similar quad lamp panels.

that permits brightness control from a

PWM signal.

Dimming Technique provides flicker-free

brightness control in any wide range

(typically 50:1+) dimming application.

from the system battery or AC adapter

directly to high frequency, high-voltage

waves required to ignite and operate CCFL

lamps. The resultant “burst drive” that

energizes

specifically to ensure that no premature

lamp degradation occurs, while allowing

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

IMPORTANT: For the most current data, consult MICROSEMI’s website:

LXMG1645-24-53

The LXMG1645-24-53 is a Quad 5W

The inverter includes a dimming input

The module converts a DC voltage

ART

Inverter

UMBER

CN2

CN3

the

lamp

RangeMAX™ Digital

Module

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

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

was

specifically

D E S C R I P T I O N

designed

PWM D

significant power savings at lower dim

levels.

FAIL pin that indicates an open/shorted

lamp condition. In addition when only

one or two lamps on either side sustain a

fault the lamps on the other side will

remain in normal operation. This mode

of operation during lamp(s) failure is

called StayLit™ since the panel is able to

still remain on although at reduced

brightness.

Microsemi’s

controller, which provides a number of

cost and performance advantages due to

the controller’s high level of integration.

are stable fixed-frequency operation and

secondary-side strike-voltage regulation.

P A C K A G E O R D E R I N F O

P R O D U C T H I G H L I G H T

The inverter also has a dedicated

The module’s design is based on

Other benefits of this new topology

UTPUT

Analog Mixed Signal Group

Microsemi

http://www.microsemi.com

IMMING

ONNECTORS

CN1

LX6512

Lamp

Fault

Signal

NPUT

™

24V Quad 5W CCFL Inverter Module

backlight

RODUCTION

MICROSEMI

™

ATA

StayLIT™ Redundancy

PWM Brightness Control

RangeMAX™ Wide Range

Dimming

Output Short-Circuit Protection

and Automatic Strike-Voltage

Regulation

Fixed Frequency Operation

Rated From -30 to 80°C

UL 60950 Pending

RoHS Compliant

High Brightness Displays

Desktop Displays

Medical Monitors

Smooth, Flicker Free 2%-

100% Optical Brightness

Range

NVERTER

K E Y F E A T U R E S

A P P L I C A T I O N S

LXMG1645-24-53

HEET

B E N E F I T S

JST BHR-03VS-1

ANEL

ATES

CN5

CN4

ONNECTORS

IRECTLY

Page 1

Related parts for lxmg1645-24-53

lxmg1645-24-53 Summary of contents

Page 1

... The LXMG1645-24- Quad 5W Output CCFL (Cold Cathode Fluorescent Lamp) Inverter Module specifically designed for driving NEC NL12876BC26- 25 LCD panel or similar quad lamp panels. The inverter includes a dimming input that permits brightness control from a PWM signal. ...

Page 2

... V ≥ 21. Center Area Brightness, Max/Min _BRTP − m=1,2,3,4, n= 1~4 not m Microsemi Analog Mixed Signal Group ™ LXMG1645-24- ™ RODUCTION ATA HEET Units R.C. Max 24 26.4 V 4.0 5.0 W 3.0 V 100 % 120 225 Hz 5.5 ...

Page 3

... CN4 ~ CN5 I Open or Short One Lamp, Full Bright L_FN I Open or Short One Lamp, Full Dim L_FN 3, CN4 4 Microsemi Analog Mixed Signal Group ™ LXMG1645-24- ™ RODUCTION ATA HEET = 120Hz 25°C. Min Typ Max ...

Page 4

... Quad 5W CCFL Inverter Module ESCRIPTION Microsemi Analog Mixed Signal Group ™ LXMG1645-24- ™ RODUCTION ATA HEET or equivalent) Page 4 ...

Page 5

... Typically Reduce Opposing Operational Lamp Current By 43% ALL OFF T D_FLT STRIKE FAIL OCCUR Microsemi Analog Mixed Signal Group ™ LXMG1645-24- ™ RODUCTION ATA HEET FAIL SIGNAL Fault Occurs During Fault Occurs During Ignition Run Mode ...

Page 6

... DIA. OLE MM 4 HOLES CN1 50mm ±0.5 1.969in. 190mm 7.480 in. 1.6mm ± 0.1 0.063 in. Microsemi Analog Mixed Signal Group ™ LXMG1645-24- ™ RODUCTION ATA HEET 77.5mm 3.051 in. 5.00 High Voltage is present at high side CN4 of each transformer, ...

Page 7

... Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ™ ™ ® 24V Quad 5W CCFL Inverter Module P RODUCTION Microsemi Analog Mixed Signal Group ™ LXMG1645-24-53 ™ ATA HEET Page 7 ...

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