LX1970IDU MICROSEMI, LX1970IDU Datasheet

LX1970IDU

Manufacturer Part Number
LX1970IDU
Description
Manufacturer
MICROSEMI
Datasheet

Specifications of LX1970IDU

Lead Free Status / RoHS Status
Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LX1970IDU
Manufacturer:
MICROSE
Quantity:
20 000
Copyright © 2007
Rev. 1.5b, 2008-01-25
sensor
emulates the human eye.
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.
with an accurate, linear, and very
repeatable current transfer function.
IMPORTANT: For the most current data, consult MICROSEMI’s website:
Protected By U.S. Patents: 6,787,757; Patents Pending
The LX1970 is a new technology light
This device is ideal for monitoring
The photo sensor is a PIN diode array
with
I N T E G R A T E D
V
LX1970
DD
spectral
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
response
4.7uF
4.7uF
D E S C R I P T I O N
P R O D U C T S
that
50K
50K
Note: Available in Tape & Reel. Append the letters “TR” to
SRC
integrated high gain amplifiers and is
made available at two output pins; one a
current source and the other a current sink.
to voltage by adding a single resistor at
either or both outputs. Voltage gain is
determined by the resistor value typically
in the 10KΩ to 50KΩ range.
design complexity and cost are greatly
reduced.
MSOP.
SNK
P R O D U C T H I G H L I G H T
-40 to 85
Photo
These currents can easily be converted
With accurate internal gain amplifiers,
The LX1970 is available in the 8-pin
T
Analog Mixed Signal Group
A
PACKAGE ORDER INFO
(°C)
the part number. (i.e. LX1970IDU-TR)
G ND
V
V
Microsemi
OUT
DD
current
http://www.microsemi.com
DU
RoHS Compliant / Pb-free
is
Plastic MSOP
8-Pin
LX1970IDU
multiplied
I
I
P
Visible Light Sensor
SNK
SRC
RODUCTION
Am bient
Light
by
D
ATA
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
PDA
Notebook PC
LCD TV
Tablet PC
Cell phones
K E Y F E A T U R E S
A P P L I C A T I O N S
S
HEET
0.3V T YP
0.3V T yp
LX1970
Page 1

Related parts for LX1970IDU

LX1970IDU Summary of contents

Page 1

... G ND PACKAGE ORDER INFO Plastic MSOP DU T (°C) 8-Pin A RoHS Compliant / Pb-free - LX1970IDU Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1970IDU-TR) Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET ...

Page 2

... V SS Copyright © 2007 Rev. 1.5b, 2008-01-25 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 0. θ A 206°C/W MBIENT JA , θ C 39°C/W ASE ESCRIPTION SNK SRC Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET VDD SRC ...

Page 3

... No Light DARK DD λ PS θ ½ PSRR 5.5V DD Irradiance current responsivity Current responsivity change with additional direct light input of 14.6µW/cm at 910nm Photodiode area Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET LX1970 Min Typ Max 2¹ 5 ...

Page 4

... Incandescent light sources W/cm² = 100 lux µ such as standard tungsten lights generate substantial IR radiation out beyond 2000nm. Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor P D ...

Page 5

... The LX1970 is a light sensor with a spectral response that resembles the human visual system packaged in clear MSOP package. Microsemi also offers the LX1971 with the same pin out and similar supply voltage range as LX1970 light sensor. The LX1971 responsiveness however differs from that of the LX1970. In general the LX1971 has lower sensitivity and a wider dynamic range ...

Page 6

... These general guidelines are applicable to a wide variety of potential light control applications. The LX1970 can be used to control the brightness input of CCFL inverters (like Microsemi’s PanelMatch™ inverter family, or line of controller IC’s). Likewise it can interface well with LED drivers like the LX1990 and LX1991 sink LED drivers, or boost drivers like the LX1992 and LX1993 ...

Page 7

... Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET 0 nds ) Load = 10kΩ and 1µF 2 Photo Step = Direct Light Input of 14.6µW/cm VDD=5 ...

Page 8

... 1.200 1.000 0.800 0.600 0.400 0.200 0.000 0 200 300 Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET 1 0.2 0.3 0.4 0.5 0.6 0.7 Source Compliance Voltage (VDD-SRC 3.0V DD 0.2 0.4 0.6 ...

Page 9

... P1 represents a possible light footprint and its dimensions are not subject to strict tolerances. Only the active area of the device is required to be covered with light. This larger footprint is designed to ensure coverage of the device’s active area. Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor P ...

Page 10

... PRODUCTION DATA – Information contained in this document is proprietary to Microsemi and is current as of publication date. This document may not be modified in any way without the express written consent of Microsemi. Product processing does not necessarily include testing of all parameters. Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © ...

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