LXMG1644-12-61 MICROSEMI, LXMG1644-12-61 Datasheet

LXMG1644-12-61

Manufacturer Part Number

LXMG1644-12-61

Description

Manufacturer

MICROSEMI

Datasheet

1.LXMG1644-12-61.pdf (6 pages)

Specifications of LXMG1644-12-61

Operating Temperature Classification

Commercial

Pin Count

Lead Free Status / RoHS Status

Compliant

Current page: 1 of 6
Download datasheet (187Kb)

Rev. 1.1, 2006-11-16

Output Direct Drive™ CCFL (Cold

Cathode

Module specifically designed for driving

LCD backlight lamps.

driving typical 12.1” to 18.1” TFT panels.

dimming input that permits brightness

control from either a DC voltage source or

a PWM signal or external Potentiometer.

The maximum output current is externally

programmable over a range of 10 to 16mA

in 1mA steps to allow the inverter to

properly match to a wide array of LCD

panel lamp current specifications.

LXMG1643 series does not provide wide

range ‘burst’ mode dimming, rather

dimming is provided by amplitude control

of the output current waveform, this limits

the potential dim range to typically less

than 5:1.

LXMG1644-12-61

http://www.microsemi.com

IMPORTANT: For the most current data and a panel to inverter cross reference, consult MICROSEMI’s website:

The LXMG1644-12-61 is a Quad 6W

The modules are available with a

ART

LXMG1644

UMBER

Fluorescent

modules

Two JST SM04(4.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-07A00

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

‘

Lamp)

It is ideal for

Universal Dimming Input PWM, VDC, or Potentiometer

unlike

Selectable Maximum Output Current 10mA to 16mA

D E S C R I P T I O N

Inverter

the

range dimming, amplitude control results

in lower ripple on the input supply and

reduced

generation. Many STN type panels are

particularly

amplitude dimming.

the system battery or AC adapter directly

to high frequency, high-voltage waves

required to ignite and operate CCFL

lamps.

tended for panel assemblies where lamp

pairs share close proximity with one

another and a common return (low side)

wire.

are stable fixed-frequency operation,

secondary-side strike-voltage regulation

and both open/shorted lamp protection

with fault timeout.

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

Voltage

Source

UTPUT

For applications not requiring wide

The modules convert DC voltage from

The LXMG1644-12-61 inverter is in-

Other benefits of this new topology

Integrated Products

Microsemi

Potentiometer

ONNECTORS

potential

well

12V Quad 6W CCFL Programmable Inverter Module

suited

transient

PWM

Signal

for

™

current

RODUCTION

noise

RMS

NVERTER

ATASHEET

Externally Programmable

Maximum Output Current

Easy to Use Brightness

Control

Analog Current Amplitude

Dimming Method

Output Open/Short-Circuit

Protection and Timeout

Fixed Frequency Operation

Rated From -20 to 70°C

UL 60950 E175910.

RoHS Compliant

High Brightness Displays

Desktop Displays

Industrial Display Controls

Compact, Low Profile

Design

Programmable output

current allows inverter to

mate with a wide variety of

LCD panel’s specifications

K E Y F E A T U R E S

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

JST BHR-04VS-1

ANEL

LXMG1644-12-61

B E N E F I T S

ATES

ONNECTORS

IRECTLY TO

Page 1

Related parts for LXMG1644-12-61

LXMG1644-12-61 Summary of contents

Page 1

... The LXMG1644-12- Quad 6W Output Direct Drive™ CCFL (Cold Cathode Fluorescent Lamp) Inverter Module specifically designed for driving LCD backlight lamps ideal for driving typical 12.1” to 18.1” TFT panels. The modules are available with a dimming input that permits brightness control from either a DC voltage source or a PWM signal or external Potentiometer ...

Page 2

... BRT_ADJ DC Microsemi Integrated Products LXMG1644-12-61 D RODUCTION ATASHEET ( (Internally Limited) RMS Units R.C. Max 12 13 13.8 5.0 6.0* W 2.0 V 625 720 V RMS 16 mA RMS 70 °C LXMG1644-12-61 Min Typ Max = 12V IN1 12V IN1 DC 10 12V IN1 DC 12 12V IN1 DC 14 12V IN1 ...

Page 3

... SET1 I = Ground 625V SET2 LAMP RMS ESCRIPTION < 13.2V) IN1 SLEEP < 0.8 = OFF, SLEEP gives maximum lamp current. DC Microsemi Integrated Products LXMG1644-12-61 D RODUCTION ATASHEET LXMG1644-12-61 Min Typ Max -300 50 2.0 2.05 0.65* 2.0 V IN1 -0.3 0.8 0.4 -300 0 Open 1750 = Open 85 >= 2. Units µ ...

Page 4

... Controller Comparator V IN1 + Output Ramp Driver - Z Ramp OC SENSE Gen OV SENSE 10K I SENSE Microsemi Integrated Products LXMG1644-12- RODUCTION ATASHEET Nominal Output Current 16.0mA 14.0mA 12.0mA 10.0mA 4mm 0.16in M H OUNTING OLES DIA . Warning High Voltage Present at high side of both Transformers and Output Connectors 8 ...

Page 5

... After about a second without success the inverter will shutdown. In order to restart the inverter it is necessary to toggle the sleep input or cycle the V supply. In the timeout shutdown mode input drain current will be about 8mA. Microsemi Integrated Products LXMG1644-12- RODUCTION ATASHEET SLEEP input. ...

Page 6

... Copyright © 2002 Rev. 1.1, 2006-11-16 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ™ ™ ® 12V Quad 6W CCFL Programmable Inverter Module P RODUCTION Microsemi Integrated Products LXMG1644-12-61 D ATASHEET Page 6 ...

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