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Smart lighting & backlight control by ambient light & noise-immune proximity sensor reference design TIDA-00754 (ACTIVE)
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Smart Lighting Control by Ambient Light and Noise-Immune Proximity Design Guide (Rev. B)
(PDF 8635 KB)
20 May 2016
Description
The TIDA-00754 TI Design demonstrates a proximity sensor implementation for HMI applications. The design can be used for backlight control that dynamically adjusts LCD backlight brightness relative to the environment's ambient light levels. A capacitive proximity sensor saves power and increases the LCD backlight life by waking up the system from sleep or standby mode when a person approaches.
Features
- Demonstrates EMI-resistant proximity detection using copper PCB material
- Excellent human eye spectral response matching with a strong IR rejection (<1%)
- Dynamically adjusts backlight brightness on a logarithmic scale based on how the human eye perceives brightness
- Integrated UV filter enables good performance for outdoor applications
See the Important Notice and Disclaimer covering reference designs and other TI resources.
