TSL2771

Technical coantmesntAsGtill valid r r Features D Ambient Light Sensing and Proximity Detection in a Single Device D Ambient Light Sensing (ALS) − Approximates Human Eye Response − Programmable Analog Gain − Programmable Integration Time − Programmable Interrupt Function with Upper and Lower Threshold − Resolution Up to 16 Bits − Very High Sensitivity — Operates Well Behind Darkened Glass − Up to 1,000,000:1 Dynamic Range D Proximity Detection − Programmable Number of IR Pulses − Programmable Current Sink for the IR LED — No Limiting Resistor Needed − Programmable Interrupt Function with Upper and Lower Threshold − Covers a 2000:1 Dynamic Range D Programmable Wait Timer − Programmable from 2.72 ms to > 8 Seconds − Wait State — 65 mA Typical Current TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100B − FEBRUARY 2011 PACKAGE FN DUAL FLAT NO-LEAD (TOP VIEW) VDD 1 SCL 2 6 SDA 5 INT GND 3 4 LDR Package Image Not Actual Size D I2C Interface Compatible − Up to 400 kHz (I2C Fast Mode) − Dedicated Interrupt Pin D Small 2 mm y 2 mm ODFN Package D Sleep Mode — 2.5 mA Typical Current Applications D Cell Phone Backlight Dimming D Cell Phone Touch Screen Disable D Notebook/Monitor Security D Automatic Speakerphone Enable D Automatic Menu Popup Description The TSL2771 family of devices provides both ambient light sensing (ALS) and proximity detection (when coupled with an external IR LED). The ALS approximates human eye response to light intensity under a variety of ...