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LX1697 반도체 회로 부품 판매점

High Performance CCFL Controller



Microsemi Corporation 로고
Microsemi Corporation
LX1697 데이터시트, 핀배열, 회로
www.DataSheet4U.com
TM
LX1697
® High Performance CCFL Controller
PRODUCTION DATA SHEET
DESCRIPTION
The LX1697 is a high performance stage consists of direct coupled full
CCFL controller optimized for wide bridge high voltage drivers for the
input voltage range notebook display external N-channel high side and N-
back lighting applications.
channel low side power FETs.
Its brightness control architecture The LX1697 includes lamp current
supports Intel’s DPST (Display Power and open lamp voltage regulation,
Saving Technology) that adjusts the fully programmable lamp frequency and
brightness as a function of video burst dimming frequency oscillators,
content.
and our patented fool-proof lamp strike
Digital Dimming duty cycle is circuitry.
controlled by providing either a dc Additional features comprise an enable
voltage or a digital PWM signal to the input, under-voltage lockout, analog
BRITE_D pin. Burst frequency can programmable open lamp strike time-
be controlled either by the on chip out, over voltage, and short circuit fault
burst oscillator or directly by a low detection.
frequency PWM logic signal at The LX1697 can also be used with
BRITE_D.
Microsemi’s LX1801 SMBus controller
The LX1697 includes a built in to provide a completely digital
5.1V regulator so it can be operated interfaced backlight control system.
directly from the battery without the The LX1697 is available in the 24
need of an external 5V supply from pin 4x4 mm MLPQ surface mount
the system. The controller’s power package and is specified from -20°C to
70°C.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
Protected by U.S. Patents: 5,615,093; 5,923,129; 5,930,121; 6,198,234; 7,112,929; Patents Pending
PRODUCT HIGHLIGHT
BATTERY VOLTAGE
( 7V – 25V)
VBAT
KEY FEATURES
ƒ 7 to 25 Volts Wide Input Voltage
Range
ƒ Resistor Programmable Lamp
Operating Frequency within ±3%
Tolerance
ƒ Resistor Programmable Burst
Operating Frequency
ƒ Support IntelTM DPST for System
PWM input
ƒ Compatible with Microsemi’s new
SMBus CCFL controllers
ƒ Fully Programmable Open Lamp
and Load Fault Time Outs
ƒ On Chip Full Wave Rectifiers for
Lamp Voltage and Current
ƒ Cost Effective and Low Parts Count
Inverter Modules
ƒ Uses Industry Standard High
Voltage Transformers
APPLICATIONS
ƒ Note Book LCD displays
ƒ Transportable Computers
ƒ Web Tablet LCD displays
VDD
ON
OFF
BLIM
ENABLE
BRITE_D LX1697
DIM_MODE
VBH
BOH
BOL
VBS
PGND
VAH
AOH
AOL
VAS
ISNS
VSNS
VDD
VBAT
Copyright © 2007
Rev 1.0, 8/1/2007
PACKAGE ORDER INFO
TA (°C)
-20 to 70
LQ
Plastic 24pin MLPQ 4x4mm
RoHS Compliant / Pb-free
LX1697CLQ
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1697CLQ-TR)
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1


LX1697 데이터시트, 핀배열, 회로
www.DataSheet4U.com
TM
®
INFORMATION
Thank you for your interest in Microsemi® Analog Mixed Signal products.
The full data sheet for this device contains proprietary information.
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:
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
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570




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LX1697 controller

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