Smart lighting & backlight control by ambient light & noise-immune proximity sensor reference design
TIDA-00754
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
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.
