TIDA-01008
Optical Sense Backlight Reference Design with Temperature Sensing
TIDA-01008
Overview
This reference design conserves power and extends life of LCD and backlight by adjusting the backlight brightness relative to the ambient light level. The capTIvate touch slider allows the brightness to be finetuned per the user's brightness preference. The sensitive thermal requirements of the LCD display is monitored by the remote temperature sensors enabling thermal shutdown to protect the system.
Features
- Operating range from 4V to 40V
- 6 strings of 8 LEDs, 150mA max per string
- Adjusts backlight brightness based on ambient light level
- Capacitive touch slider for tuning or setting brightness
- Temperature monitoring and shutdown during over-temperature condition
- Lowers system power and extends life of backlight and LCD
Automotive
- Automotive auxiliary display
- Automotive center information display
- Automotive cluster display
- Automotive display module
- Automotive eMirrors
- Commercial vehicle instrument cluster
- DLP-based HUD with local graphics processing
- DLP-based HUD with remote graphics processing
- Motorcycle instrument cluster
- TFT-based HUD with local graphics processing
- TFT-based HUD with remote graphics processing
- Transparent window display
Industrial
- AC transmission relay
- Air Circuit Breaker (ACB)
- Aircraft cockpit display
- Applications Processor Module
- Binary input module
- Digital multimeter (DMM) - benchtop
- Digital multimeter (DMM) - handheld
- Interconnect/distribution box
- Marine equipment
- Motor diagnostics & monitoring
- Narrow input range
- Near infrared (NIR) spectrometer - benchtop
- Oscilloscope (DSO) - benchtop
- Power quality analyzer
- Semiconductor manufacturing
- Source measurement unit (SMU)
- Weigh scale
- Wide input range
- Wired communication module
Personal electronics
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDUDI3.PDF (3291 K)
Reference design overview and verified performance test data
TIDRV45.PDF (293 K)
Detailed schematic diagram for design layout and components
TIDRV46.PDF (104 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRV47.PDF (319 K)
Detailed overview of design layout for component placement
TIDRV49.ZIP (1666 K)
Files used for 3D models or 2D drawings of IC components
TIDCED4.ZIP (4494 K)
Design file that contains information on physical board layer of design PCB
TIDRV48.PDF (2165 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
Ambient light sensors
OPT3001-Q1 — Automotive digital ambient light sensor (ALS) with high-precision human-eye response
Data sheetAutomotive LED drivers
LP8863-Q1 — LP8863-Q1 Automotive Display LED-Backlight driver with Six 150-mA channels
Data sheetDigital temperature sensors
TMP423-Q1 — AEC-Q100 Automotive 3Ch Remote Temperature Sensor
Data sheetIdeal diode/ORing controllers
LM74700-Q1 — 3.2-V to 65-V, 80-uA IQ automotive ideal diode controller
Data sheetLinear & low-dropout (LDO) regulators
TPS7B69-Q1 — Automotive 150-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator
Data sheetLoad switches
TPS22918-Q1 — 1-ch, 5.5-V, 2-A, 52-mΩ automotive load switch with adj. rise time and adj. output discharg
Data sheetMSP430 microcontrollers
MSP430FR2633 — Capacitive Touch MCU with 16 touch IO (64 sensors), 16KB FRAM, 4KB SRAM, 19 IO, 10-bit ADC
Data sheetStart development
Technical documentation
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| Type | Title | Date | |
|---|---|---|---|
| * | Design guide | Reference Design for Optical Sense-Controlled Backlight With Temperature Sensing | Dec. 01, 2017 |
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