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TIDA-01364
Smart Backlight Control by White LED Driver, Ambient Light, and Proximity Sensor Reference Design
TIDA-01364
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
- Air Circuit Breaker (ACB)
- Aircraft cockpit display
- Analytical lab instrumentation
- Automotive interface & communications HIL tester
- Broadcast reference monitor
- CPAP machine
- Cellular module asset tracking
- Defense radio
- Digital multimeter (DMM) - benchtop
- Digital multimeter (DMM) - handheld
- Fire alarm control panel (FACP)
- Heat pump
- Industrial robot wired teach pendant
- Interconnect/distribution box
- L2 Commercial Chargers
- L2 Residential Chargers
- LED signage controller
- Laser distance meter
- MRI subsystem module
- Marine equipment
- Near infrared (NIR) spectrometer - benchtop
- Off-highway vehicles HMI & display systems
- Off-highway vehicles sensor systems
- Oscilloscope (DSO) - benchtop
- Portable field instrumentation
- Power quality analyzer
- Power source/load switching
- Production switchers & mixers for broadcast
- Programmable DC power supply
- Rail sensing & monitoring systems
- Refrigerant leak detector
- Sensor modules/tags for asset tracking
- Signal generator
- Single phase online UPS
- Smart thermostat
- Solar charge controller
- Source measurement unit (SMU)
- System controller
- Telecom monitor unit
- Unit controller
- Weigh scale
Personal electronics
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.
TIDUCG5.PDF (8629 K)
Reference design overview and verified performance test data
TIDROW1.PDF (890 K)
Detailed schematic diagram for design layout and components
TIDROW2.PDF (131 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDROW3.PDF (254 K)
Detailed overview of design layout for component placement
TIDROW5.ZIP (1082 K)
Files used for 3D models or 2D drawings of IC components
TIDCCY1.ZIP (1768 K)
Design file that contains information on physical board layer of design PCB
TIDROW4.PDF (1812 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
MSP430 microcontrollers
MSP430FR5969 — 16 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer
Data sheet: PDF | HTMLStart development
Technical documentation
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| 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
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