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TCS3772 Datasheet

Color Light-to-Digital Converter

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TCS3772
Color Light‐to‐Digital Converter with
Proximity Sensing
General 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.
Ordering Information and Content Guide appear at end of
datasheet.
Figure 1:
Added Value of Using TCS3772
Key Benefits & Features
The benefits and features of this device are listed below:
Benefits
Single Device Reduces Board Space
Enables Flexible Operation for Wide
Range of Applications
Enables Accurate Color and Ambient
Light Sensing Under Varying Lighting
Conditions
Enables Operation within Wide Range of
Lighting Conditions
Features
Integrated RGB and Clear Color Sensing and Proximity
Detection
Programmable Color Sensing and Proximity Detection
Integrated IR Blocking Filter
3.8M:1 Dynamic Range
ams Datasheet
[v1-01] 2018-Mar-14
Page 1
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ams

TCS3772 Datasheet Preview

TCS3772 Datasheet

Color Light-to-Digital Converter

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TCS3772 − General Description
Color Light Sensing with IR-Blocking Filter
• Programmable Analog Gain and Integration Time
• 3 800 000:1 Dynamic Range
• Very High Sensitivity – Ideally Suited for Operation
Behind Dark Glass
Proximity Detection
• Ambient Light Rejection
• Programmable Integration Time
• Current Sink Driver for External IR LED
Maskable Light and Proximity Interrupt
• Programmable Upper and Lower Thresholds with
Persistence Filter
Power Management
• Low Power – 2.5-μA Sleep State
• 65-μA Wait State with Programmable Wait State Time
from 2.4 ms to > 7 Seconds
I2C Fast Mode Compatible Interface
• Data Rates up to 400 kbit/s
• Input Voltage Levels Compatible with VDD or 1.8 V Bus
Register Set and Pin Compatible with the TCS3x71 Series
Small 2 mm × 2.4 mm Dual Flat No-Lead (FN) Package
Applications
The applications of TCS3772 include:
RGB LED Backlight Control
Ambient Light Color Temperature Sensing
Cell Phone Touch Screen Disable
Mechanical Switch Replacement
Industrial Process Control
Medical Diagnostics
End Products and Market Segments
HDTVs, Mobile Handsets, Tablets, and Portable Media
Payers
Medical and Commercial Instrumentation
Toys
Solid State and General Lighting
Page 2
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ams Datasheet
[v1-01] 2018-Mar-14


Part Number TCS3772
Description Color Light-to-Digital Converter
Maker ams
Total Page 30 Pages
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