TSL2772

LIGHT-TO-DIGITAL CONVERTER

with PROXIMITY SENSING

TAOS131 − DECEMBER 2011

1

The LUMENOLOGY

r Company

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Copyright

E 2011, TAOS Inc.

www.taosinc.com

Features

Detection in a Single Device

− 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

− Programmable Analog Gain, Integration

Time, and Offset

− Current Sink Driver for External IR LED

− Saturation Indicator

− 16,000:1 Dynamic Range

− Programmable Upper and Lower

Thresholds with Persistence Filter

− Low Power 2.2

mA Sleep State with User-

Selectable Sleep-After-Interrupt Mode

− 90

mA Wait State with Programmable Wait

Time from 2.7 ms to > 8 seconds

− Data Rates up to 400 kbit/s

or 1.8-V Bus

TSL2x71 Series

Package

Applications

End Products and Market Segments

Monitors, and PMP (Portable Media

Players)

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 variety of lighting

conditions.

The TSL2772 ALS includes a reduced-gain mode that extends the operating range to 60k lux in sunlight. The

device package incorporates a UV-rejection filter that enables accurate ALS. The TSL2772 proximity detection

includes improved signal-to-noise performance and selectable gain modes. A proximity offset register allows

compensation for optical system crosstalk between the IR LED and the sensor. To prevent false proximity data

measurement readings, a proximity saturation indicator bit signals that the internal analog circuitry has reached

saturation.

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Texas Advanced Optoelectronic Solutions Inc.

1001 Klein Road

S Suite 300 S Plano, TX 75074 S (972) 673-0759

PACKAGE FN

DUAL FLAT NO-LEAD

(TOP VIEW)

SCL 2

GND 3

6 SDA

5 INT

4 LDR

Not Actual Size