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 is very close to human-eye vision, having very low response to non-visible light, such as infrared and ultra-violet light.

FEATUREs
• Close to the human eyes response
• 15 bit effective resolution
• 50Hz/60Hz rejection
• Low sensitivity variation across various light sources
• Operating temperature performance, -40oC to 85oC
• 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
   • I2C serial port communication: (1) Standard 100kHz, (2).Fast 400kHz
• High dynamic sensing range and from 0 to 220000 Lux
• Size : 2.0mm(L)*2mm(W)*0.6mm(H)
• RoHS compliant and Pb Free package

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