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NOA1212 Datasheet(PDF) 1 Page - ON Semiconductor |
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NOA1212 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 8 page © 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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