lx1696 Microsemi Corporation, lx1696 Datasheet

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lx1696

Manufacturer Part Number
lx1696
Description
Ccfl Backlight Controller Ic
Manufacturer
Microsemi Corporation
Datasheet
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.
Copyright © 2004
Rev. 1.0, 2/27/2006
resonant controller designed specifically
for Automotive and high performance
display applications. The Direct Drive
CCFL
Lamp) controller is optimized to proved
the functions, efficiency, and safety
features critical to vehicular applications
while providing major advancements in
overall component count and costs at the
system level.
provides 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 archi-
tecture also provides a wide dimming
range.
that limit the transformer secondary
voltage
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 LX1696 is a full bridge
Resonant
The LX1696 includes safety features
TM
(Cold
and
full
protect
Cathode
bridge
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
against
Fluorescent
D E S C R I P T I O N
topology
fault
Note: Available in Tape & Reel. Append the letters “TR” to the
part number. (i.e. LX1696IPW-TR)
-40 to +85
LX1696
indicator and shutdown features necessary
in automotive environments. Integration
of these functions provides significant
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
performance in temperature extremes.
control signal that is either an analog
voltage
gate drivers for the four external power
MOSFETs.
internal
simplifying supply voltage requirements.
TSSOP in extended temperature range.
T
In addition to this protection the
The LX1696 regulates the CCFL
The LX1696 can accept a brightness
The LX1696 also features integrated
An integrated 4V LDO powers all
The LX1696 is available in a 20-Pin
A
(°C)
P A C K A G E O R D E R I N F O
1
Integrated Products Division
as
or a direct low frequency PWM.
control
provides
®
Microsemi
http://www.microsemi.com
optimizing
PW
RoHS Compliant / Pb-free
circuitry
Plastic TSSOP
20-Pin
integrated
LX1696IPW
Full Bridge Resonant CCFL Controller
the
display
greatly
fault
P
RODUCTION
For Wide Voltage Range Inverter
Application (7V to 22V)
Patented resonant Lamp Strike for
Unsurpassed Striking Power Combined
with Best Efficiency
Reduced Corona Stress To
Transformers
Wide Dimming Range
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
Reduced Operating Voltage Lowers
High “Nits / Watt” Efficiency Makes Less
Automotive
Industrial Application
Avionics
Marine
D
• Direct Low PWM Brightness Control
• DC Brightness Control Input Provides
Current Amplitude
Corona Discharge and Prolongs
Module Life
Heat and Brighter Displays
ATA
Input Provides > 300:1 Capability
> 80:1 capability
K E Y F E A T U R E S
A P P L I C A T I O N S
S
B E N E F I T S
HEET
LX1696
2
Page 1

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lx1696 Summary of contents

Page 1

... MOSFETs. An integrated 4V LDO powers all fault internal control circuitry greatly simplifying supply voltage requirements. The LX1696 is available in a 20-Pin TSSOP in extended temperature range. http://www.microsemi.com Plastic TSSOP PW T (°C) 20-Pin ...

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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