NOA3301 Datasheet, PDF (1/23 Pages) ON Semiconductor – Digital Proximity Sensor with Ambient Light Sensor and Interrupt

NOA3301
Digital Proximity Sensor
with Ambient Light Sensor
and Interrupt
Description
The NOA3301 combines an advanced digital proximity sensor and
LED driver with an ambient light sensor (ALS) and tri- mode I²C
interface with interrupt capability in an integrated monolithic device.
http://onsemi.com
8
Multiple power management features and very low active sensing
1
power consumption directly address the power requirements of battery
operated mobile phones and mobile internet devices.
The proximity sensor measures reflected light intensity with a high
degree of precision and excellent ambient light rejection. The
CUDFN8
CU SUFFIX
CASE 505AF
NOA3301 enables a proximity sensor system with a 32:1
programmable LED drive current range and a 30 dB overall proximity
PIN CONNECTIONS
detection threshold range. The photopic light response, dark current
compensation and high sensitivity of the ambient light sensor
VDD 1
8 SCL
eliminates inaccurate light level detection, insuring proper backlight
control even in the presence of dark cover glass.
VSS 2
7 SDA
The NOA3301 is ideal for improving the user experience by
LED_GND 3
6 NC
enhancing the screen interface with the ability to measure distance for
near/far detection in real time and the ability to respond to ambient
LED 4
5 INT
lighting conditions to control display backlight intensity.
(Top View)
Features
 Proximity Sensor, LED driver and ALS in One Device
 Very Low Power Consumption
 Stand- by Current 5 mA (monitoring I²C interface only,
V_DD = 3 V)
 ALS Operational Current 50 mA
 Proximity Sensing Average Operational Current 100 mA
 Average LED Sink Current 75 mA
Proximity Sensing
 Proximity Detection Distance Threshold I²C Programmable with
ORDERING INFORMATION
Device
Package
Shipping^†
NOA3301CUTAG* CUDFN8
(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 80C.
12- bit Resolution and Four integration Time Ranges
(15- bit effective resolution)
 Effective for Measuring Distances up to 100 mm and
 Photopic Spectral Response Nearly Matches Human
Beyond
 Excellent IR and Ambient Light Rejection Including
Sunlight (up to 50k lux) and CFL Interference
 Programmable LED Drive Current from 5 mA to
160 mA in 5 mA steps, No External Resistor Required
Ambient Light Sensing
 ALS Senses Ambient Light and Provides a 16- bit
Output Count on the I²C Bus Directly Proportional to
the Ambient Light Intensity
Eye
 Dynamic Dark Current Compensation
 Linear Response Over the Full Operating Range
 Senses Intensity of Ambient Light from 0.05 lux to 52k
lux with 21- bit Effective Resolution (16- bit converter)
 Continuously Programmable Integration Times
(6.25 ms, 12.5 ms, 25 ms to 800 ms)
 Precision on- Chip Oscillator (counts equal 0.1 lux at
100 ms integration time)
 Semiconductor Components Industries, LLC, 2013
1
February, 2013 - Rev. 2
Publication Order Number:
NOA3301/D