NOA2301W

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Digital Proximity Sensorwith Interrupt

制造商：ON

中文数据手册

产品信息

The NOA2301W combines an advanced digital proximity sensorand LED driver coupled with a tri−mode I2C interface with interruptcapability in an integrated monolithic device. Multiple powermanagement features and very low active sensing power consumptiondirectly address the power requirements of battery operated mobilephones and mobile internet devices.The proximity sensor measures reflected light intensity with a highdegree of precision and excellent ambient light rejection. TheNOA2301W enables a proximity sensor system with a 16:1programmable LED drive current range and a 30 dB overall proximitydetection range.The NOA2301W is ideal for improving the user experience byenhancing the screen interface with the ability to measure distance fornear/far detection in real time.

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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型号	制造商	描述	购买
NOA2301W	-	-	立即购买

技术资料

标题	类型	大小（KB）	下载
Digital Proximity Sensor with Interrupt	PDF	192	点击下载

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