lx1696a Microsemi Corporation, lx1696a Datasheet

lx1696a

Manufacturer Part Number

lx1696a

Description

Full Bridge Resonant Ccfl Controller

Manufacturer

Microsemi Corporation

Datasheet

1.LX1696A.pdf (2 pages)

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Rev. 1.0, 2006-03-29

1 With Analog DC voltage, it will limit the dimming ratio.

2 Arc protection is provided if the arcing level is enough to be trigged

resonant controller designed specifically

for Automotive and high performance

display applications.

CCFL (Cold Cathode Fluorescent Lamp)

controller is optimized to provide the

functions, efficiency, and safety features

critical to vehicular applications while

providing major advancements in overall

component count and costs at the system

level.

near sinusoidal waveforms over a wide

supply voltage range in order to maximize

the life of CCFL lamps, control EMI

emissions, and maximize efficiency. This

new architecture also provides a wide

dimming range.

that limit the transformer secondary

voltage and protect against fault conditions

which include open lamp, broken lamp,

and short-circuit faults.

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; Patents Pending

Microsemi’s LX1696A is a full bridge

Resonant full bridge topology provides

The LX1696A includes safety features

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

The Direct Drive

D E S C R I P T I O N

Note: Available in Tape & Reel. Append the letters “TR” to

LX1696A provides integrated fault indicator

and

automotive environments.

these

reductions in required external support

components.

brightness in three ways: analog dimming,

digital dimming, or combined analog and

digital dimming methods simultaneously to

achieve the widest dimming range as well as

optimizing the display performance in

temperature extremes.

control signal that is either an analog

voltage

gate drivers for the four external power

MOSFETs.

internal control circuitry greatly simplifying

supply voltage requirements.

TSSOP in extended temperature range.

-40 to +85

In addition to this protection the

The LX1696A regulates the CCFL

The LX1696A can accept a brightness

The LX1696A also features integrated

An integrated 4V LDO powers all

The LX1696A is available in a 20-Pin

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

shutdown

the part number. (i.e. LX1696AIPW-TR)

Integrated Products Division

(°C)

functions

or a direct low frequency PWM.

Microsemi

http://www.microsemi.com

features

RoHS Compliant / Pb-free

provides

LX1696AIPW

Full Bridge Resonant CCFL Controller

Plastic TSSOP

20-Pin

necessary

Integration of

significant

RODUCTION

• Direct Low PWM Brightness Control

• DC Brightness Control Input

For Wide Voltage Range Inverter

Application (7V to 22V)

Patent Resonant Lamp Strike for

Unsurpassed Striking Power

Combined with Best Efficiency

Reduced Corona Stress To

Transformers

Wide Dimming Range

Input Provides > 300:1 Capability

Provides > 80:1 capability

Programmable Burst Dimming

Frequency

Programmable Time Out Protection

Fixed Operating Frequency

Open Lamp Voltage Protection,

Short Lamp Protection, Arc

Protection

Compatible with Existing

Transformers

Even Display Light Distribution

Longer Lamp Life with Optimized

Lamp Current Amplitude

Reduced Operating Voltage Lowers

Corona Discharge and Prolongs

Module Life

High “Nits / Watt” Efficiency Makes

Less Heat and Brighter Displays

Automotive

Industrial Application

Avionics

Marine

ATA

K E Y F E A T U R E S

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

B E N E F I T S

HEET

LX1696A

Page 1

Related parts for lx1696a

lx1696a Summary of contents

Page 1

... MOSFETs. An integrated 4V LDO powers all internal control circuitry greatly simplifying supply voltage requirements. The LX1696A is available in a 20-Pin TSSOP in extended temperature range. http://www.microsemi.com Plastic TSSOP ...

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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