TIDA-010021
Wide-range (120° FoV at 1.6 meters) proximity sensing reference design with immunity to sunlight
TIDA-010021
Overview
Proximity sensing with wide field-of-view (FoV) is getting more and more popular and important for people detection in many applications. This reference design uses optical time-of-flight (ToF) techniques to build small and cost-effective proximity sensor systems. A single proximity and distance sensor AFE (OPT3101) with three external NIR LEDs, and one photodiode covers a total 120° wide FoV and outputs accurate distance of people activity.
Features
- 3 NIR emitters support up to 3 zones of detection with a single OPT3101
- Total system field-of-view (FoV) of 120° is covered by three LED emitters and one photodiode
- Detection range up to 1.5 meters without lens
- Adaptive HDR allows measurement insensitive to object color and reflectivity and supports operation under high ambient condition (outdoor and indoor conditions)
- Proximity sensing and direct distance measurement output with accuracy of ±10%
- Exempt group lamp classification LED as emitter
Industrial
- Air Circuit Breaker (ACB)
- Air conditioner indoor unit
- Air purifier & humidifier
- Aircraft cockpit display
- Appliances user interface & connectivity modules
- Battery powered motion detector
- Coffee machine
- Cooker hood
- Dishwasher
- Electric water heaters & heating systems
- Electronic hospital bed & bed control
- Gas water heaters & heating systems
- Heat pump water heaters & heating systems
- Humanoid
- Interconnect/distribution box
- Occupancy detection (people tracking, people counting)
- Off-highway vehicles sensor systems
- Oven
- Refrigerator & freezer
- Robotic lawn mower
- Smart thermostat
- Vacuum robot
- Washer & dryer
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDUEH5.PDF (2562 K)
Reference design overview and verified performance test data
TIDRY72.ZIP (600 K)
Detailed schematic diagram for design layout and components
TIDRY73.ZIP (102 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRY74.ZIP (142 K)
Detailed overview of design layout for component placement
TIDRY76.ZIP (993 K)
Files used for 3D models or 2D drawings of IC components
TIDCF47.ZIP (4352 K)
Design file that contains information on physical board layer of design PCB
TIDRY75.ZIP (714 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
Linear & low-dropout (LDO) regulators
TLV702 — 300-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable
Data sheetMSP430 microcontrollers
MSP430FR2433 — 16 MHz MCU with 16KB FRAM, 4KB SRAM, 10-bit ADC, UART/SPI/I2C, timer
Data sheetRGB LED drivers
TLC59283 — 16 channel constant current LED driver with pre-charge FET
Data sheetTime of flight (ToF) sensors
OPT3101 — ToF-based long-range proximity and distance sensor analog front end (AFE)
Data sheetStart development
Technical documentation
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| Type | Title | Date | |
|---|---|---|---|
| * | Design guide | Wide-Range (120° FoV at 1.6 Meters) Proximity Sensing Ref. Des. Sunlight Immunit | Dec. 19, 2018 |
| More literature | TIDA-010021 Firmware | Dec. 19, 2018 |
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