ALS-PDIC17-79NB-TR8_15 Datasheet, PDF (1/19 Pages) Everlight Electronics Co., Ltd – Digital Ambient Light Sensor

SMD  I²C Digital Ambient Light Sensor
ALS-PDIC17-79NB/TR8
Features
• Close to the human eye's response
• 15 bit effective resolution
• 50Hz/60Hz rejection
• Low sensitivity variation across various light sources
• Operating temperature performance, -40^oC to 85^oC
• Wide supply voltage range, 2.7V to 5.5V
• Low power consumption, less than 2mW while operating
• Shut-down mode, current consumption less than 0.1uA
2
• I C serial port communication: (1) Standard 100kHz, (2).Fast 400kHz
• High dynamic sensing range and from 0 to 88,400 Lux
• Size: 2.0mm(L)*2.0mm(W)*0.6mm(H)
• RoHS compliant and Pb Free
Description
The ALS-PDIC17-79NB/TR8 is a digital-output light sensor with a two-wire, I²C serial interface that is compatible with
SMBus when working at 100kHz serial clock frequency. It combines a photodiode and an analog-to-digital converter
(ADC) on a single CMOS integrated circuit to provide light measurements over an effective 15-bit dynamic range. Two
operation modes are provided with one for constantly refreshing ADC and the other for one time integration. When
working in “one time integration” mode, no external resister is required. The integrating conversion technique used by
ALS-PDIC17-79NB/TR8 effectively eliminates the effect of flicker from AC-powered lamps, increasing the stability of
the measurement. ALS-PDIC17-79NB/TR8 wavelength is close to human-eye, and low response to non-visible light,
such as infrared and ultra-violet light.
Applications
• Detection of ambient light for controlling the backlighting of TFT LCD display
• Automatic residential and commercial lighting management
• Automatic contrast enhancement for electronic signboard
• Ambient light monitoring device for daylight and artificial light
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