|
|
PDF LX1973A Data sheet ( Hoja de datos )
| Número de pieza | LX1973A | |
| Descripción | Automotive Light Sensor | |
| Fabricantes | Microsemi Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LX1973A (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
LX1973A
www.DataSheet4U.com
TM ® Automotive Light Sensor
PRODUCTION DATA SHEET
DESCRIPTION
The LX1973A is a wide dynamic The LX1973A internal circuitry
range light sensor with a very low consists of a diode array with
dark current that is optimized for Microsemi’s Best Eye™ processing that
sensing low level light signals that provides a nearly perfect photopic light
typically occur under dark or wavelength response curve. The sensor
darkening outdoor ambient lighting. output feeds into a wide dynamic range
The LX1973A has been optimized for compression amplifier that provides
automotive systems such as headlamp accurate resolution over five decades of
brightness control or rear view mirror ambient light. The integrated dark
contrast control. Its radical (fractional current cancellation circuit facilitates
exponent) response when interfaced accurate sensing of light below 0.01
with an 8 bit DAC can detect levels lux. The current source output of the
down to 0.001 lux or levels as high as LX1973A can be gain scaled using one
500 lux.
external resistor.
The spectral response of the The LX1973A is internally trimmed
integrated light sensor closely to an initial accuracy of 5% at room
emulates the human eye so it ignores temperature and a light level of 10lux.
light such as infrared which emits Accuracy of 10% is maintained over the
energy but doesn’t aid vision. This full temperature range (-40 to +85°C).
eliminates the need for an Infrared
filter required with competitor’s light
sensors.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
Protected By US Patents: 6,787,757; Patents Pending
KEY FEATURES
Nearly Perfect Best Eye™
Human Eye Spectral Response
25C Dark Current <0.005 lux
5 Decades Compressed Output
10% Accuracy Over
Temperature
Scalable Output Voltage
No Optical Filters Needed
APPLICATIONS
Auto headlamp control
Auto mirror contrast control
5V
LXP1a97rt3A
PRODUCT HIGHLIGHT
LX1973A Response
4.0
3.0
VOUT
RLOAD
2.0
1.0
0.0
0.001
0.01
0.1
1
10
Ambient Light (in lux)
100
TA (°C) DR
-40 to 85
PACKAGE ORDER INFO
Plastic MSOP Reversed Form
Plastic MSOP
8-Pin
DU 8-pin
RoHS Compliant / Pb-free
RoHS Compliant / Pb-free
LX1973AIDR
LX1973AIDU
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1973AIDU-TR)
Copyright © 2005
Rev. 1.1, 2006-12-15
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
1 page  
LX1973A
www.DataSheet4U.com
TM ® Automotive Light Sensor
PRODUCTION DATA SHEET
APPLICATIONS
GENERAL DESCRIPTION
The LX1973A produces an output current that is sensitive to the level of ambient light that falls onto the
photosensitive area of the IC package. The sensitivity is amplified and compressed to provide ratio metric accuracy
across several decades. The sensitivity function is:
( ) [ ]IOUT
P
=
Iref
lux 0.25
×
EDARK + E AMBIENT
0.25
Iref = 113.8µA for the Flat Top package
Iref = 117µA for the Reverse Flat Top package
EDARK = dark current equivalent lux expressed in lux from a white LED point source.
EAMBIENT = ambient illumination expressed in lux from a white LED point source.
Copyright © 2005
Rev. 1.1, 2006-12-15
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LX1973A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LX1973 | Automotive Light Sensor | Microsemi Corporation |
| LX1973A | Automotive Light Sensor | Microsemi Corporation |
| LX1973B | Automotive Light Sensor |  Microsemi |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |