Ambient Light Sensors | NOA2301W

具有中断功能的数据近距离传感器

Obsolete

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  • 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

  • Smart phones, mobile internet devices, MP3 players, GPS
  • Mobile device displays and backlit keypads
  • Cameras
  • Game controllers, media players
  • contactless switches

  • Proximity Sensor and LED Driver in One Device
  • Proximity Detection Distance Threshold I2C Programmable with12−bit Resolution and Eight Integration Time Ranges (16−biteffective resolution)
  • Effective for Measuring Distances up to 200 mm and Beyond
  • Excellent IR and Ambient Light Rejection including Sunlight (up to50K lux) and CFL Interference
  • Programmable LED Drive Current from 10 mA to 160 mA in 5 mASteps, No External Resistor Required
  • User Programmable LED Pulse Frequency
  • Very Low Power Consumption♦ Stand−by current 2.8 A (monitoring I2C interface only, Vdd=3V)♦ Proximity sensing average operational current 100 A♦ Average LED sink current 75 A
  • Programmable interrupt function including independentupper and lower threshold detection or threshold basedhysteresis
  • Level or Edge Triggered Interrupts
  • Proximity persistence feature reduces interrupts byproviding hysteresis to filter fast transients such ascamera flash
  • Automatic power down after single measurement orcontinuous measurements with programmable intervaltime
  • 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 LEDand Power Supply Decoupling Caps
  • These Devices are Pb−Free, Halogen Free/BFR Freeand are RoHS Compliant

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NOA2301W

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Obsolete

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A

H

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-

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NA

0

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1

N

75

I2C

2.3

3.6

-40

80

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