LIGHT-TO-DIGITAL CONVERTER - TAOS
Description
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 and
Integration Time − 8,000,000:1 Dynamic Range − Operation to 60,000 lux in Sunlight − Very High Sensitivity — Ideally Suited for
Operation Behind Dark Glass − Package UV Rejection Filter
D Proximity Detection
− Programmable Analog Gain, Integration Time, and Offset
− Current Sink Driver for External IR LED − Saturation Indicator − 16,000:1 Dynamic Range
D Maskable ALS and Proximity Interrupt
− Programmable Upper and Lower Thresholds with Persistence Filter
D Power Management
− Low Power 2.
2 mA Sleep State with UserSelectable Sleep-After-Interrupt Mode
− 90 mA Wait State with Programmable Wait Time from 2.
7 ms to > 8 seconds
D I2C Fast Mode Compatible Interface
− Data Rates up to 400 kbit/s − Input Voltage Levels Compatible with VDD
or 1.
8-V Bus
D Register Set- and Pin-Compatible with the
TSL2x71 Series
D Small 2 mm y 2 mm Dual Flat No-Lead (FN)
Package
TSL2772 LIGHT-TO-DIGITAL CONVERTER
with PROXIMITY SENSING TAOS131 − DECEMBER 2011
PACKAGE FN DUAL FLAT NO-LEAD
(TOP VIEW)
VDD 1 SCL 2 GND 3
6 SDA 5 INT 4 LDR
Not Actual Size
Applications
D Display Backlight Control D Cell Phone Touch Screen Disable D Mechanical Switch Replacement D Industrial Process Control D Medical Diagnostics D Printer Paper Alignment
End Products and Market Segments
D Mobile Handsets, Tablets, Laptops, HDTVs,
Monitors, and PMP (Portable Media Players)
D Medical and Industrial Instrumentation D White Goods D Toys D Industrial/Commercial Lighting D Digital Signage D Printers
Description
The TSL2772 device family provides both ambient light sensing (ALS) and, when coupled with an external IR LED, proximity detection.
The device family is based on the TAOS patented dual-diode technology that enables accurate ALS results and approximates human eye response to light intensity under a variet...
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