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NOA1212 Datasheet(PDF) 1 Page - ON Semiconductor

Part # NOA1212
Description  Ambient Light Sensor
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NOA1212 Datasheet(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2015
November, 2015 − Rev. 3
1
Publication Order Number:
NOA1212/D
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
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
Figure 1. Typical Application Circuit
hn
Photo
Diode
Amp
GB2
GB1
IOUT
RL
VDD
VSS
CL
ADC
C1
1
μ
Vin = 2 to 5.5V
IC1
NOA1212
IC2
h
Photo
Diode
Amp
GB2
GB1
IOUT
GS2
RL
VDD
VSS
CL
ADC
C1
1
μ
Vin = 2 to 5.5V
IC1
NOA1212
IC2
GS1
Device
Package
Shipping
ORDERING INFORMATION
NOA1212CUTAG*
CUDFN6
(Pb−Free)
2500 /
Tape & Reel
CUDFN6
CU SUFFIX
CASE 505AL
www.onsemi.com
PIN ASSIGNMENT
(Top View)
1
2
3
6
5
4
VDD
VSS
GB1
IOUT
NC
GB2
†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.
1


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