LXM1620-01 Microsemi Analog Mixed Signal Group, LXM1620-01 Datasheet

LXM1620-01

Manufacturer Part Number

LXM1620-01

Description

MOD CCFL INVERTER DUAL DIRECT

Manufacturer

Microsemi Analog Mixed Signal Group

Series

LXM1620r

Type

Inverters for CCFL and UV Lampsr

Datasheet

1.LXM1620-01.pdf (5 pages)

Specifications of LXM1620-01

Voltage - Input

12V

Output

1800V

Size / Dimension

5.51" L x 0.94" W x 0.45" H (140mm x 24mm x 11.4mm)

Mounting Type

Chassis Mount

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Current page: 1 of 5
Download datasheet (260Kb)

Rev. 0.11

H E

The Dual Output Module Ideal for

Desktop and Industrial Applications. The

LXM1620 Direct Drive

rescent Lamp (CCFL) Inverter is a single mod-

ule designed to drive two lamps and is targeted

for use with desktop Liquid Crystal Display

(LCD) and industrial LCD panels typically rang-

ing in size from 10.4-inches to 17-inches. This

two output inverter is the ideal solution to power

virtually any two lamp application.

sign is based on a new patented

topology, which provides a number of cost and

performance advantages. The LXM1620-01

Direct Drive inverters eliminate the classic reso-

nant inductor and capacitors, thus reducing cost

and allowing a substantial reduction in module

size.

efits of this new topology are fixed-frequency

operation and secondary-side strike-voltage

regulation. Strike-voltage regulation minimizes

corona discharge in the output transformer and

related circuitry, providing longer life and higher

reliability.

plications. Our multi-output inverters are de-

signed to keep your application operating at near

normal brightness in the event that a lamp fails.

NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.

Direct Drive Technology. The module de-

Fixed-Frequency Operation. Other ben-

Fail-safe Feature For Multiple Lamp Ap-

12/03

N F I N I T E

CN2

CN3

11861 W

Dual Connector Configuration

O W E R

Cold Cathode Fluo-

ESTERN

Direct Drive

D E S C R I P T I O N

Desktop Display

LXM1620-01

O F

Part Number

I N

CCFL Lamp

VENUE

M O D U L E O R D E R I N F O R M AT I O N

I N I T Y

N N O V A T I O N

, G

This allows the display to remain "on-line" until

lamp replacement is convenient.

Supply. The LXM1620 module uses a standard

12V ±10% input supply. It also ensures nomi-

nal power consumption with 2 lamps requiring

only 8 watts. Lamp current is fully regulated

with respect to input voltage and output imped-

ance variations.

ules are equipped with a dimming input that per-

mits brightness control from an external poten-

tiometer or DC voltage. In addition, the sleep

input reduces module power to a few microwatts

in shut down mode. All LXM1620 modules fea-

ture both output open and short-circuit protec-

tion.

Cost-effective Backlight Inverter for Desk-

top/Industrial Applications. Linfinity's pro-

prietary Direct Drive architecture is the highest

efficiency, small form factor solution for all

multiple lamp applications. The LXM1620 is

fully customizable (electronically and mechani-

cally) to specific customer requirements.

US Patent Numbers: 5923129 & 5930121

ARDEN

Dual Module Uses Standard Power

Dimming Features. The LXM1620 mod-

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

ROVE

I C R O E L E C T R O N I C S

Lamp Run Voltage

, CA. 92841, 714-898-8121, F

The Most Efficient and

I R E C T

CN2

CN3

R I V E

NOT RECOMMENDED FOR NEW DESIGN

Single Connector Configuration

Lamp Current

U A L

SEE

N C

Desktop Display

LXM1624-12-61

: 714-893-2570

A M P

CCFL Lamps

Drive Two Lamps With One Module

Small, Compact Size

High Efficiency

Multiple Outputs Provide Easy LCD

Connections

Low EMI And Noise

Low Power Sleep Mode

Output Short And Open Circuit Protection

3:1 Dimming Control

Adjustable Lamp Current Up To 6.0mA Per

Lamp

Long Lamp Life With Soft-Start And

Accurate Lamp Current Regulation

Desktop LCD Monitors And Panels

Industrial LCD Panels

Hi-Brite Displays

Cool Operation

Smooth, Easy-To-Use Brightness Control

Single 12 Volt Supply

CCFL I

K E Y F E A T U R E S

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

See LXM1624-12-61

LXM1620-01

B E N E F I T S

N V E RT E R

O D U L E

Related parts for LXM1620-01

LXM1620-01 Summary of contents

Page 1

... Direct Drive Technology. The module de- 1 sign is based on a new patented Direct Drive topology, which provides a number of cost and performance advantages. The LXM1620-01 Direct Drive inverters eliminate the classic reso- nant inductor and capacitors, thus reducing cost and allowing a substantial reduction in module size. ...

Page 2

... Sleep Current Note 2. Minimum lamp current required to maintain even light output may vary with display panel CCFL NOT RECOMMENDED FOR NEW DESIGN LXM1624-12-61 SEE Symbol V IN LXM1620- BRT ADJ LXM1620-01 V LAMP I OLAMP Symbol Test Conditions 5.0V , SLEEP = HIGH 12V L (MAX) BRT ADJ ...

Page 3

... Rev. 0.11 12/ CCFL NOT RECOMMENDED FOR NEW DESIGN LXM1624-12-61 SEE ≤ 16V ON, -0.3V < SLEEP < 0.8V = OFF 5.0V gives maximum lamp current LXM1620-01 5.51 (140) CN1 Ø 0.089 (2.26) Grounded Mounting Hole LXM1620- 0.94 (24) 0.370 (9.4) max. 0.449 (11.4) max. 0.307 (7.8) 3 ...

Page 4

... Verify lamp wiring before connecting lamps to the inverter module. Connecting both lamps to one of the two inverter output circuits will result in reduced brightness. The LXM1620-01 module connectors are wired per industry standard. The lamp hot wires (high voltage wires) are always on pin and the cold wire (low voltage wire) is always on pin 3. ...

Page 5

... High Voltage Transformer Transformer Driver Controller V SENSE I SENSE FIGURE 3 — LXM1620 Block Diagram (Only one lamp shown 10.8V - 16V BRITE IN V LXM1620-xx SLEEP GND V FIGURE 4 — Potentiometer Brightness Control LXM1620- takes control and regulates output voltage to SNS V HI1 V LO HI2 HI1 LO 5 ...

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