TCS3772

COLOR LIGHT-TO-DIGITAL CONVERTER

with PROXIMITY SENSING

TAOS145B − SEPTEMBER 2012

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The LUMENOLOGY

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Copyright

E 2012, TAOS Inc.

www.taosinc.com

Features

Proximity Detection in a Single Device

− Programmable Analog Gain and

Integration Time

− 3,800,000:1 Dynamic Range

− Very High Sensitivity — Ideally Suited for

Operation Behind Dark Glass

− Ambient Light Rejection

− Programmable Integration Time

− Current Sink Driver for External IR LED

− Programmable Upper and Lower

Thresholds with Persistence Filter

− Low Power — 2.5-

mA Sleep State

− 65-

mA Wait State withProgrammable Wait

State Time from 2.4 ms to > 7 Seconds

− Data Rates up to 400 kbit/s

or 1.8 V Bus

TCS3x71 Series

(FN) Package

Applications

End Products and Market Segments

Portable Media Payers

Description

The TCS3772 device family provides red, green, blue, and clear (RGBC) light sensing and, when coupled with

an external IR LED, proximity detection. These devices detect light intensity under a variety of lighting conditions

and through a variety of attenuation materials, including dark glass. The proximity detection feature allows a

large dynamic range of operation for accurate short distance detection, such as in a cell phone, for detecting

when the user positions the phone close to their ear. An internal state machine provides the ability to put the

device into a low power state in between proximity and RGBC measurements providing very low average power

consumption.

The color sensing feature is useful in applications such as LED RGB backlight control, solid state lighting,

reflected LED color sampler, or fluorescent light color temperature detection. With the addition of an IR blocking

filter, the device is an excellent ambient light sensor, color temperature monitor, and general purpose color

sensor.

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Texas Advanced Optoelectronic Solutions Inc.

1001 Klein Road

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

Package Drawing Not to Scale

PACKAGE FN

DUAL FLAT NO-LEAD

(TOP VIEW)

6 SDA

5 INT

4 LDR

SCL 2

GND 3