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NOA2301CUTAG Datasheet(PDF) 1 Page - ON Semiconductor

Part # NOA2301CUTAG
Description  Digital Proximity Sensor
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NOA2301CUTAG Datasheet(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2015
March, 2015 − Rev. 1
1
Publication Order Number:
NOA2301/D
NOA2301
Digital Proximity Sensor
with Interrupt
Description
The NOA2301 combines an advanced digital proximity sensor and
LED driver coupled with a tri−mode I2C interface with interrupt
capability in an integrated monolithic device. Multiple power
management features and very low active sensing 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
NOA2301 enables a proximity sensor system with a 16:1
programmable LED drive current range and a 30 dB overall proximity
detection range.
The NOA2301 is ideal for improving the user experience by
enhancing the screen interface with the ability to measure distance for
near/far detection in real time.
Features
Proximity Sensor and LED Driver in One Device
Proximity Detection Distance Threshold I2C Programmable with
12−bit Resolution and Eight Integration Time Ranges (16−bit
effective resolution)
Effective for Measuring Distances up to 200 mm and Beyond
Excellent IR and Ambient Light Rejection including Sunlight (up to
50K lux) and CFL Interference
Programmable LED Drive Current from 10 mA to 160 mA in 5 mA
Steps, No External Resistor Required
User Programmable LED Pulse Frequency
Very Low Power Consumption
Stand−by current 2.8
mA (monitoring I2C interface only, Vdd=3V)
Proximity sensing average operational current 100
mA
Average LED sink current 75
mA
Programmable interrupt function including independent
upper and lower threshold detection or threshold based
hysteresis
Level or Edge Triggered Interrupts
Proximity persistence feature reduces interrupts by
providing hysteresis to filter fast transients such as
camera flash
Automatic power down after single measurement or
continuous measurements with programmable interval
time
Wide Operating Voltage Range (2.3 V to 3.6 V)
Wide Operating Temperature Range (−40°C to 80°C)
I2C Serial Communication Port
Standard mode – 100 kHz
Fast mode – 400 kHz
High speed mode – 3.4 MHz
No External Components Required except the IR LED
and Power Supply Decoupling Caps
These Devices are Pb−Free, Halogen Free/BFR Free
and are RoHS Compliant
Applications
Senses human presence in terms of distance for saving
display power and preventing inadvertent command
initiation in applications such as:
Smart phones, mobile internet devices, MP3 players,
GPS
Mobile device displays and backlit keypads
Headphone use detection
Cameras
Game controllers, media players
Contactless Switches
Touch−less switches for light controls
Money detection, coin or paper
Sanitary switches for medical environments
CWDFN8
CU SUFFIX
CASE 505AJ
www.onsemi.com
†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.
Device
Package
Shipping
ORDERING INFORMATION
NOA2301CUTAG*
CWDFN8
(Pb−Free)
2500 /
Tape & Reel
PIN CONNECTIONS
1
2
3
6
5
7
VDD
LED_GND
LED
SCL
SDA
NC
(Top View)
INT
VSS
4
8
1


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