LMX1622-05-03 MICROSEMI [Microsemi Corporation], LMX1622-05-03 Datasheet

LMX1622-05-03

Manufacturer Part Number

LMX1622-05-03

Description

DUAL 5W, DIGITAL DIMMING CCFL INVERTER MODULE

Manufacturer

MICROSEMI [Microsemi Corporation]

Datasheet

1.LMX1622-05-03.pdf (6 pages)

Current page: 1 of 6
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Rev. 0.5,2001-01-18

IMPORTANT: For the most current data, consult MICROSEMI ’s website: http://www.microsemi.com

Dual Output Inverter. The LMX1622

series of Direct Drive CCFL (Cold

Cathode

Modules are specifically designed for

driving two lamp LCD displays. They are

available in two power and input voltage

ranges.

designer a vastly superior display bright-

ness range.

achievable with

display

Technique.

flicker-free brightness control in any wide

range (100:1+) dimming application.

ming input that permits brightness control

from either a DC voltage source or

a PWM signal.

The modules are available with a dim-

M I C R O S E M I

RangeMAX Wide Range Dimming,

LMX1622

RangeMAX

LMX1622-05-01

LMX1622-05-02

LMX1622-05-03

ART

2000

Fluorescent

UMBER

Digital dimming provides

This brightness range is

modules

virtually any LCD

Digital

AMP

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

Lamp)

6.5mA

5.5mA

provide

URRENT

C O M P A N Y

Dimming

Inverter

D C V o lt a g e

the

S o u r c e

VOLTAGE

500-750

350-550

energizes

specifically to ensure that no premature

lamp degradation occurs (See the “How

RangeMAX Works” section).

convert the DC voltage from a fixed 5V

supply directly to high-frequency, high-

voltage waves required to ignite and

operate CCFL lamps.

inverter is also available; LXM1612-12

series.

modules design is based on a new Direct

Drive topology, which provides a number

of cost and performance advantages.

of this new topology are fixed-frequency

operation, secondary-side strike-voltage

regulation, and both open and shorted

lamp protection. If lamp fails to strike the

inverter will timeout and shutdown.

AMP RUN

Linfinity Microelectronics Division

The

Input Voltage Range. The modules

Direct Drive Technology.

Additional Features. Other benefits

Microsemi

P o t e n t io m e t e r

resultant

the

RangeMAX

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

BRITE

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

Honda QZ-19-A3MYL #02

lamp

UTPUT

“burst

UAL

was

A 12V input

5W, D

S i g n a l

P W M

ONNECTOR

drive”

designed

RELIMINARY

IGITAL

The

that

IMMING

NVERTER

Fixed Frequency Operation

Microamp SLEEP mode

Low Ambient Light

CCFL I

ATA

RangeMAX Wide Range

Dimming

Fixed 5V input

Easy to Use Brightness Control

Output Short-Circuit Protection

and Automatic Strike-Voltage

Regulation and Timeout

Notebook Sub-Notebook

Computers

Portable Instrumentation

Smooth, Flicker Free 1-100%

Full-Range Brightness Control

Output Open Circuit Voltage

Regulation Minimizes Corona

Discharge For High Reliability

Power Efficient, “Low

Brightness” Capability Allows

For Advanced Power

Management

ANEL

BHR-03VS-1

QZ-19-3F01

LXM1622-05-xx

NVERTER

HEET

ATES

ONNECTORS

ODULE

IRECTLY

Page 1

Related parts for LMX1622-05-03

LMX1622-05-03 Summary of contents

Page 1

... ART UMBER AMP URRENT LMX1622-05-01 6.5mA LMX1622-05-02 5.5mA LMX1622-05-03 5.5mA Copyright 2000 Rev. 0.5,2001-01-18 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 RangeMAX D 5W, D UAL P The resultant “burst drive” ...

Page 2

... Lamp Operating Voltage (-02,-03) Lamp Current Full Brightness (-01) Lamp Current Full Brightness (-02,-03) Operating Ambient Temperature Range Unless otherwise specified, these specifications apply over the recommended operating conditions and 25°C ambient temperature for the LMX1622-05-xx. Parameter OUTPUT PIN CHARACTERISTICS Full Bright Lamp Current (-01) Full Bright Lamp Current (-02,-03) Min ...

Page 3

... DO NOT connect to Ground. Connection to Low Side of Lamp. Connect to lamp terminal with longer lead length. CN2 NOT connect to Ground. CN2,3 for LMX1622-05-03 (Honda QZ-19-AMYL#02) High Voltage Connection to High Side of Lamp. Connect to lamp terminal with shortest lead CN2 length. DO NOT connect to Ground. ...

Page 4

LAMP VOLTAGE & LAMP CURRENT – BURST MODE OPERATION !" – 50% Burst Duty Cycle Rather than using the ...

Page 5

...

Page 6

... The LMX1622-05-xx comes with a built in 5K pull-up resistor to allow the use of an external potentiometer for brightness adjust. In some cases this pull-up resistor may interfere with those driving the BRITE Preliminary Data – Information contained in this document is pre-production data and is proprietary to LinFinity. It may not be modified in any way without the express written consent of LinFinity ...

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