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PDF TSL45311 Data sheet ( Hoja de datos )
| Número de pieza | TSL45311 | |
| Descripción | DIGITAL AMBIENT LIGHT SENSOR | |
| Fabricantes | TAOS | |
| Logotipo |  |
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Features
D Simple Direct Lux Output
D Approximates Human Eye Response in
Diverse Lighting Conditions
D Three User-Selectable Integration Times
(400 ms, 200 ms, and 100 ms)
D Wide Dynamic Range — 3 lux to 220k lux
D Rejects 50 Hz/60 Hz Lighting Ripple
D Low Active Current (110 mA typical) with
Power Down Mode (2.2 mA typical) Enables
Green Products
D 16-bit Digital Output with I2C Compatibility
D Ultra-Small 2 mm y 2 mm ChipLED package
D 2.5-V Supply Voltage with 1.8-V Logic
Interface
TSL4531
DIGITAL AMBIENT LIGHT SENSOR
TAOS112 − OCTOBER 2011
PACKAGE CL
ChipLED
(TOP VIEW)
VDD 1
4 SCL
GND 2
3 SDA
Package Drawing Not to Scale
Applications
D Outdoor Lighting Control
− Street Lights
− Security Lights
− Traffic Signals
− Commercial Billboards
D Display Backlight Control
− Automotive Instrumentation
− Cell Phones
− Tablets and Notebooks
D Solid-State and General Lighting and
Daylight Harvesting
− Commercial Lighting
− Industrial Lighting
Description
www.DataSheet.co.kr
The TSL4531 family of devices provides ambient light sensing (ALS) that approximates human eye response
under a variety of lighting conditions. The devices have three selectable integration times and provide a direct
16-bit lux output via an I2C bus interface. The wide dynamic range of the ALS makes it particularly useful in
outdoor applications where it is exposed to direct sunlight. The device is ideal for use in automatic control of
street lights and security, billboard, and automotive lighting. The TSL4531 devices can also be used in solid state
and general lighting for automatic control and daylight harvesting to maximize energy conservation. Other
applications include display backlight control to extend battery life and optimize visibility in cell phones, tablets,
and notebooks.
Functional Block Diagram
VDD
SCL
Photodiode
Array
SDA
The LUMENOLOGY r Company
r
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972r) 673-0759
www.taosinc.com
Copyright E 2011, TAOS Inc.
1
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
TSL4531
DIGITAL AMBIENT LIGHT SENSOR
TYPICAL CHARACTERISTICS
TAOS112 − OCTOBER 2011
NORMALIZED SPECTRAL RESPONSIVITY
100
90
Photoptic
80
70
60
4531
50
40
30
20
10
0
300
500 700 900
λ − Wavelength − nm
Figure 2
1100
NORMALIZED RESPONSIVITY
vs.
ANGULAR DISPLACEMENT — CL PACKAGE
1.0
0.8
0.6
0.4
0.2
0 -Q
+Q
−90 −60 −30 0 30 60
Q − Angular Displacement − °
Figure 3
90
160
150
140
130
120
705C
110
100
90
IDD
vs.
VDD
255C
−155C
www.DataSheet.co.kr
1000k
10k
100
80
2.2 2.4 2.6 2.8
3
VDD − V
Figure 4
3.2 3.4
1
1
OUTPUT
vs
ILLUMINANCE
100 10k
Illuminance — lux
Figure 5
1000k
The LUMENOLOGY r Company
r
www.taosinc.com
r
Copyright E 2011, TAOS Inc.
5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
TSL4531
DIGITAL AMBIENT LIGHT SENSOR
HARDWARE APPLICATION INFORMATION
TAOS112 − OCTOBER 2011
Power Supply Decoupling
The power supply lines must be decoupled with a 0.1-μF capacitor placed as close to the device package as
possible. The bypass capacitor should have low effective series resistance (ESR) and effective series
inductance (ESI), such as the common ceramic types, which provide a low impedance path to ground at high
frequencies to handle transient currents caused by internal logic switching.
PCB Pad Layout
Suggested PCB pad layout guidelines for the CL package is shown in Figure 8.
0.95 0.70
0.55
1.2
0.85
www.DataSheet.co.kr
1.35
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
Figure 8. Suggested CL Package PCB Layout
The LUMENOLOGY r Company
r
www.taosinc.com
r
Copyright E 2011, TAOS Inc.
11
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet TSL45311.PDF ] | |
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