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PDF NOA1212 Data sheet ( Hoja de datos )
| Número de pieza | NOA1212 | |
| Descripción | Ambient Light Sensor | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NOA1212
Ambient Light Sensor with
Dark Current Compensation
Description
The NOA1212 is a very low power ambient light sensor (ALS) with
an analog current output and a power down mode to conserve power.
Designed primarily for handheld device applications, the active power
dissipation of this chip is less than 8 mA at dark and its quiescent
current consumption is less than 200 pA in power down mode. The
device can operate over a very wide range of voltages from 2 V to
5.5 V. The NOA1212 employs proprietary CMOS image sensing
technology from ON Semiconductor, including built−in dynamic dark
current compensation to provide large signal to noise ratio (SNR) and
wide dynamic range (DR) over the entire operating temperature range.
The photopic optical filter provides a light response similar to that of
the human eye. Together the photopic light response and dark current
compensation insures accurate light level detection.
Features
• Senses Ambient Light and Provides an Output Current Proportional
to the Ambient Light Intensity
• Photopic Spectral Response
• Dynamic Dark Current Compensation
• Three Selectable Output Current Gain Modes in Approximately 10x
Steps
• Power Down Mode
• Less than 18 mA at 100 lux Active Power Consumption in Medium
Gain Mode (Less than 8 mA at Dark)
• Less than 200 pA Quiescent Power Dissipation in Power Down
Mode at All Light Levels
• Linear Response Over the Full Operating Range
• Senses Intensity of Ambient Light from ~0 lux to Over 100,000 lux
• Wide Operating Voltage Range (2 V to 5.5 V)
• Wide Operating Temperature Range (−40°C to 85°C)
• Drop−in Replacement Device in 1.6 x 1.6 mm Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
www.onsemi.com
1
CUDFN6
CU SUFFIX
CASE 505AL
PIN ASSIGNMENT
VDD 1
6 IOUT
VSS 2
5 NC
GB1 3
4 GB2
(Top View)
ORDERING INFORMATION
Device
Package
Shipping†
NOA1212CUTAG* CUDFN6
(Pb−Free)
2500 /
Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
*Temperature Range: −40°C to 85°C.
Applications
• Saves display power in applications such as:
♦ Cell Phones, PDAs, MP3 players, GPS
♦ Cameras, Video Recorders
♦ Mobile Devices with Displays or Backlit Keypads
♦ Laptops, Notebooks, Digital Signage
♦ LCD TVs and Monitors, Digital Picture Frames
♦ Automobile Dashboard Displays and Infotainment
♦ LED Indoor/Outdoor Residential and Street Lights
Vin = 2 to 5.5V
GS2 GS1
hn VDD GB2 GB1
Photo
Diode
Amp
IOUT
VSS
IC1
NOA1212
C1
1μ
RL CL
ADC
IC2
Figure 1. Typical Application Circuit
© Semiconductor Components Industries, LLC, 2015
November, 2015 − Rev. 3
1
Publication Order Number:
NOA1212/D
1 page  
NOA1212
TYPICAL CHARACTERISTICS
−20
−30
−40
−50
−60
−70
−80
−90
−101.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
10 20
30
40
50
60
70
80
90
−100
−110
100
Q
110
−120
120
END VIEW
−130
130
−90o 1
6 90o
−140
140
−150 150
−160 −170
170 160
180
25
34
TOP VIEW
Figure 9. Output Current vs. Angle
(End View, Normalized)
3.0
VDD = 3.3 V
2.5
2.0
1.5
1.0
0.5
0.0
−60 −40
−20 0 20 40 60
TEMPERATURE (°C)
80
Figure 11. Output Current at 0 lux vs.
Temperature (High Gain Mode)
100
0
−20 −101.0
−30 0.9
−40 0.8
−50
−60
0.7
0.6
0.5
−70 0.4
0.3
−80 0.2
0.1
−90 0.0
10 20
30
40
50
60
70
80
90
−100
−110
100
Q
110
−120
120
SIDE VIEW
−130
130
−140 140
−150
150
−160−170
170 160
180
−90o 90o
TOP VIEW
Figure 10. Output Current vs. Angle
(Side View, Normalized)
1.6
VDD = 3.3 V
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
−60 −40 −20
0
High Gain Mode
Medium Gain Mode
Low Gain Mode
20 40 60 80 100
TEMPERATURE (°C)
Figure 12. Output Current at 100 lux vs.
Temperature
10
9 VDD = 3.3 V
8
7
6
5
4
3
2
1
0
−60 −40 −20 0
20 40 60
TEMPERATURE (°C)
80 100
Figure 13. Supply Current at 0 lux vs.
Temperature (High Gain Mode)
100
90 VDD = 3.3 V
80
70
60
50
40
30
20
10
0
−60 −40 −20 0
20 40 60
TEMPERATURE (°C)
80 100
Figure 14. Supply Current at 100 lux vs.
Temperature (High Gain Mode)
www.onsemi.com
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet NOA1212.PDF ] | |
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