Home
Design & development
Reference designs

TIDA-01364

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

Design files

TIDA-01364

Design files

Overview

This reference 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 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
  • Human eye spectral response matching with strong infrared (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
Industrial
Personal electronics
??image.gallery.download_en_US?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-01364
TIDUCG5.PDF (8629 K)

Reference design overview and verified performance test data

download Schematic — TIDA-01364
TIDROW1.PDF (890 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-01364
TIDROW2.PDF (131 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Assembly drawing — TIDA-01364
TIDROW3.PDF (254 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDA-01364
TIDROW5.ZIP (1082 K)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-01364
TIDCCY1.ZIP (1768 K)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-01364
TIDROW4.PDF (1812 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Backlight LED drivers

TPS61165 — High brightness white LED driver in 2mm x 2mm QFN Package

Data sheet: PDF | HTML
ESD protection diodes

TPD2E2U06 — Dual 1.5-pF, 5.5-V, ±25-kV ESD protection diode with 5.5-A 8/20-uS surge rating for USB 2.0

Data sheet: PDF | HTML
Humidity sensors

HDC1010 — ±2% low-power digital humidity and temperature sensor in WCSP

Data sheet: PDF | HTML
Light sensors

OPT3001 — Digital ambient light sensor (ALS) with high-precision human-eye response

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TLV713P — 150-mA, capacitor-free low-dropout voltage regulator with active output discharge & enable

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR5969 — 16 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Data sheet: PDF | HTML
Signal conditioners

FDC2212 — 2-Ch, 28-bit, capacitance to digital converter

Data sheet: PDF | HTML

Start development

Software

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide Smart Backlight Control by White LED Driver, Ambient Light, and Proximity Sensor Nov. 22, 2016

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-00373 — Backlight and Smart Lighting Control by Ambient Light and Proximity Sensor Reference Design TIDA-00754 — Smart lighting & backlight control by ambient light & noise-immune proximity sensor reference design

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos
Disclaimer
See the important notice and disclaimer covering reference designs and other TI resources.