Smart Backlight Control by White LED Driver, Ambient Light, and Proximity Sensor Reference Design TIDA-01364 (ACTIVE)

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Key Document

Description

The TIDA-01364 TI Design conserves power and extends LCD backlight life by dynamically adjusting the 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 strong IR rejection (<1%)
  • Dynamically adjusts backlight brightness on logarithmic scale based on how the human eye perceives brightness
  • Even LED illumination controlled through white LED driver PWM without calibration
  • Integrated backlight UV filter enables good performance in outdoor applications

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
FDC2212  Two channel, 28 bit noise-immune capacitive sensing solution for proximity sensing   Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
HDC1010  ±2% low-power digital humidity and temperature sensor in WCSP  Sensors  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR5969  MSP430FR5969 16 MHz Ultra-Low-Power Microcontroller featuring 64 KB FRAM, 2 KB SRAM, 40 IO  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
OPT3001  Digital ambient light sensor (ALS) with high-precision human-eye response  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
TLV713P  150mA Low-Dropout (LDO) Regulator With Foldback Current Limit for Portable Devices  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPD2E2U06  Dual-Channel High-Speed ESD Protection  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS61165  High Brightness White LED Driver in 2mm x 2mm QFN Package  LED drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
FDC2212 Download Download
MSP430FR5969 Download Download
OPT3001 Download Download
TLV713P Download Download
Download Download
TPD2E2U06 Download
TPS61165 Download -
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 8629 22 Nov 2016
Design files (6)
Title Type Size (KB) Date
ZIP 1768 05 Dec 2016
ZIP 1082 05 Dec 2016
PDF 1812 05 Dec 2016
PDF 254 05 Dec 2016
PDF 131 05 Dec 2016
PDF 890 05 Dec 2016
Related Tools & Software

Reference Designs  ( 2 )

Software (1)



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