Smart Backlight Control by White LED Driver, Ambient Light, and Proximity Sensor Reference Design

(ACTIVE) TIDA-01364

Description & Features

Technical Documents

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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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Bill of Materials (BOM)

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
FDC2212  Noise-immune Capacitive Sensing Solution for Proximity Sensing   Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
HDC1010  HDC1010 Low Power, High Accuracy Digital Humidity Sensor with Temperature Sensor  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
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TPD2E2U06 Download
TPS61165 Download -
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 8629 22 Nov 2016 14
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 1768 05 Dec 2016 2
ZIP 1082 05 Dec 2016 7
PDF 1812 05 Dec 2016 6
PDF 254 05 Dec 2016 4
PDF 131 05 Dec 2016 10
PDF 890 05 Dec 2016 96
Related Tools & Software

Reference Designs  ( 2 )

Software (1)



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