TCS3471 Datasheet, PDF (1/22 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – COLOR LIGHT-TO-DIGITAL CONVERTER

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Features
D Color Light Sensing
− Programmable Analog Gain, Integration
Time, and Interrupt Function with Upper
and Lower Thresholds
− Resolution Up to 16 Bits
− Very High Sensitivity — Ideally Suited for
Operation Behind Dark Glass
− Up to 1,000,000:1 Dynamic Range
D Low Power Wait State
− 65 mA Typical Current
− Wait Timer is Programmable from 2.4 ms
to > 7 Seconds
D I²C Interface Compatible
− Up to 400 kHz (I²C Fast Mode)
D Dedicated Interrupt Pin
D Pin and Register Set Compatible with the
TCS3x7x Family of Devices
D Small 2 mm y 2.4 mm Dual Flat No-Lead
Package
D Sleep Mode — 2.5 mA Typical Current
TCS3471
COLOR LIGHT-TO-DIGITAL CONVERTER
TAOS115 − MARCH 2011
PACKAGE FN
DUAL FLAT NO-LEAD
(TOP VIEW)
V_DD 1
SCL 2
GND 3
6 SDA
5 INT
4 NC
Package Drawing Not to Scale
Applications
D Color Temperature Sensing
D RGB LED Backlight Control
D Color Display Closed-Loop Feedback
Control
D Ambient Light Sensing for Display
Brightness Control
D Industrial Process Control
D Medical Diagnostics
End Products and Market Segments
D HDTVs, Mobile Handsets, Tablets, Laptops,
Monitors, PMP (Portable Media Payers)
D Medical Instrumentation
D Consumer Toys
D Industrial/Commercial Lighting
Description
The TCS3471 family of devices provides red, green, blue, and clear light sensing (RGBC) that detects light
intensity under a variety of lighting conditions and through a variety of attenuation materials. An internal state
machine provides the ability to put the device into a low power mode in between RGBC measurements providing
very low average power consumption.
The TCS3471 is directly useful in lighting conditions containing minimal IR content such as LED RGB backlight
control, reflected LED color sampler, or fluorescent light color temperature detector. With the addition of an IR
blocking filter, the device is an excellent ambient light sensor, color temperature monitor, and general purpose
color sensor.
The LUMENOLOGY r Company
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Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972_r) 673-0759
www.taosinc.com
Copyright E 2011, TAOS Inc.
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