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LX1970IDU Datasheet

  • LX1970IDU

  • Visible Light Sensor

  • 10頁

  • MICROSEMI

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LX1970
I N T E G R A T E D
P R O D U C T S
Visible Light Sensor
P
RODUCTION
D
ATA
S
HEET
DESCRIPTION
KEY FEATURES
WWW .
Microsemi
.C
OM
The LX1970 is a new technology light
sensor with spectral response that
emulates the human eye.
This device is ideal for monitoring
ambient light for brightness control
systems in flat panel displays. It has a
unique photo diode arrangement (patents
pending) with a peak response at 520 nm
while sharply attenuating both ultra violet
and infrared wavelengths.
The photo sensor is a PIN diode array
with an accurate, linear, and very
repeatable current transfer function.
Photo current is multiplied by
integrated high gain amplifiers and is
made available at two output pins; one a
current source and the other a current sink.
These currents can easily be converted
to voltage by adding a single resistor at
either or both outputs. Voltage gain is
determined by the resistor value typically
in the 10K惟 to 50K惟 range.
With accurate internal gain amplifiers,
design complexity and cost are greatly
reduced.
The LX1970 is available in the 8-pin
MSOP.
Approximate Human Eye
Spectral Response
Low IR Sensitivity
Highly Accurate &
Repeatable Output Current
vs. Light
Voltage Scalable
Temperature Stable
Integrated High Gain Photo
Current Amplifiers
Complementary Current
Outputs
No Optical Filters Needed
APPLICATIONS
PDA
Notebook PC
LCD TV
Tablet PC
Cell phones
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
Protected By U.S. Patents: 6,787,757; Patents Pending
PRODUCT HIGHLIGHT
V
DD
4.7uF
V
DD
50K
SNK
I
V
OUT
SNK
0.3V T yp
LX1970
SRC
4.7uF
50K
I
G ND
0.3V T YP
SRC
Am bient
Light
LX1970
LX1970
PACKAGE ORDER INFO
Plastic MSOP
DU
8-Pin
T
A
(擄C)
RoHS Compliant / Pb-free
-40 to 85
LX1970IDU
Note: Available in Tape & Reel. Append the letters 鈥淭R鈥?to
the part number. (i.e. LX1970IDU-TR)
Copyright
漏
2002
Rev. 1.4b, 2005-08-10
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1

LX1970IDU 產(chǎn)品屬性

  • 80

  • 傳感器，轉(zhuǎn)換器

  • 光學(xué) - 光電探測器 - 環(huán)境光傳感器

  • *

  • 無

  • 520nm

  • 2 V ~ 5.5 V

  • 10nA

  • 38µA

  • 電流

  • *

  • 表面貼裝

  • 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）

  • 散裝

  • LX1970MINI EVAL-ND - MINI LIGHT SENSOR BOARD

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