lx1693 Microsemi Corporation, lx1693 Datasheet

lx1693

Manufacturer Part Number

lx1693

Description

High Performance Ccfl Controller W/als

Manufacturer

Microsemi Corporation

Datasheet

1.LX1693.pdf (2 pages)

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Rev 1.0, 8/1/2007

CCFL controller optimized for wide

input voltage range notebook display

back lighting applications.

architecture provides versatile support

for ambient light sensor (ALS) control

of panel brightness. It also supports

Intel’s DPST (Display Power Saving

Technology)

brightness as a function of video

content. The ALS control architecture

is compatible with all Microsemi

visible light sensor products.

mode includes three brightness inputs:

ALS_IN

BRITE_D

BST_SYNC for digital dimming and

synchronization..

either by the on chip burst oscillator or

directly by an external logic signal at

BST_SYNC.

oscillator can either free run or

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

Protected by U.S. Patents: 5,615,093; 5,923,129; 5,930,121; 6,198,234; 7,112,929; Patents Pending

The LX1693 is a high performance

Its

The controller’s digital dimming

Burst frequency can be controlled

new

for

that

The on chip burst

brightness

the

brightness

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

light

adjusts

Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1693CLQ-TR)

-20 to 70

D E S C R I P T I O N

(°C)

control

sensor,

and

the

synchronize to an external signal.

Digital

controlled by providing either a DC

voltage or a PWM signal to the

BRITE_D pin.

operated directly from the battery

without the need of an external 5V

supply from the system.

direct coupled full bridge high voltage

drivers for the external N-channel high

side and N-channel low side power

FETs.

and open lamp voltage regulation,

fully programmable lamp frequency and

burst dimming frequency oscillators,

and our patented fool-proof lamp strike

circuitry.

strike time-out, over voltage, and short

circuit

implemented.

The LX1693 is available in the 28 pin 4

x5 MLPQ surface mount package.

The LX1693 power stage includes

The LX1693 includes lamp current

Analog programmable open lamp

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

Analog Mixed Signal Group

Plastic MLPQ 4x5mm 28 pin

fault

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

Dimming

Microsemi

http://www.microsemi.com

detection

The LX1693 can be

RoHS Compliant / Pb-free

High Performance CCFL Controller w/ALS

duty

LX1693CLQ

are

cycle

fully

RODUCTION

7 to 25 Volts Wide Input Voltage

Range

Versatile Support for Ambient Light

Sensor Brightness Control

Resistor Programmable Lamp

Operating Frequency within ±4%

Tolerance

Resistor Programmable Burst

Operating Frequency

Support Intel

PWM input

Compatible with Microsemi’s new

SMBus CCFL controllers

Fully Programmable Open Lamp

and Load Fault Time Outs

On Chip Full Wave Rectifiers for

Lamp Voltage and Current

Cost Effective and Low Parts Count

Inverter Modules

Uses Industry Standard High

Voltage Transformers

Note Book LCD displays

Transportable Computers

Web Tablet LCD displays

ATA

K E Y F E A T U R E S

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

HEET

DPST for System

LX1693

Page 1

Related parts for lx1693

lx1693 Summary of contents

Page 1

... Protected by U.S. Patents: 5,615,093; 5,923,129; 5,930,121; 6,198,234; 7,112,929; Patents Pending T (° Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1693CLQ-TR) Copyright © 2007 Rev 1.0, 8/1/2007 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 High Performance CCFL Controller w/ALS ® ...

Page 2

... To obtain a copy, please contact your local Microsemi sales representative. The name of your local representative can be obtained at the following link http://www.microsemi.com/contact/contactfind.asp or Contact us directly by sending an email to: IPGdatasheets@microsemi.com Be sure to specify the data sheet you are requesting and include your company name and contact information and or vcard. We look forward to hearing from you. Copyright 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® ...

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