VL53L5CX Time-of-Flight Ranging Sensor

STMicroelectronics' ToF, laser-ranging sensor is state of the art and has a wide FoV

Image of STMicroelectronics VL53L5CX Time-of-Flight Ranging SensorSTMicroelectronics' VL53L5CX is a state of the art, time-of-flight (ToF), laser-ranging sensor enhancing the ST FlightSense product family. Housed in a miniature reflowable package, it integrates a single-photon avalanche diode (SPAD) array, physical infrared filters, and diffractive optical elements (DOE) to achieve the best-ranging performance in various ambient lighting conditions with a range of cover glass materials. The use of a DOE above the vertical cavity surface-emitting laser (VCSEL) allows a square FoV to be projected onto the scene. The reflection of this light is focused by the receiver lens onto a SPAD array.

Unlike conventional IR sensors, the VL53L5CX uses ST's latest generation, direct ToF technology, which allows absolute distance measurement whatever the target color and reflectance. It provides accurate ranging up to 400 cm and can work at fast speeds (60 Hz), which makes it the fastest, multizone, miniature ToF sensor currently on the market.

Thanks to ST Histogram patented algorithms, the VL53L5CX is able to detect different objects within the FoV with a distance information range up to 60 cm. The Histogram also provides immunity to cover glass crosstalk beyond 60 cm. Multizone distance measurements are possible up to 8x8 zones with a wide 61° diagonal FoV that can be reduced by software.

Features

  • Fast and accurate multizone distance ranging sensor
    • Multizone ranging output with either 4x4 or 8x8 separate zones
    • Autonomous low-power mode with interrupt programmable threshold to wake up the host
    • Up to 400 cm ranging
    • Multitarget detection and distance measurement in each zone
    • 60 Hz frame rate capability
    • Histogram processing and algorithmic compensation minimizes or removes impact of cover glass crosstalk
    • Scene change indicator (SCI) allowing advanced motion detection
  • Fully-integrated miniature module with wide FoV
    • Emitter: 940 nm invisible light VCSEL and integrated analog driver
    • 61° diagonal square FoV using DOE on both transmitter and receiver
    • Receiving array of SPADs
    • Low-power microcontroller running firmware
    • Size: 6.4 mm x 3.0 mm x 1.5 mm
  • Easy integration
    • Single reflowable component
    • Flexible power supply options, single 3.3 V or 2.8 V operation or combination of either 3.3 V or 2.8 V AVDD with 1.8 V IOVDD
    • Compatible with wide range of cover glass materials

Applications

  • Scene understanding: multizone and multi-object distance detection enables 3D room mapping and obstacle detection for robotics applications
  • Wide FoV and multizone scanning allows content management (load in trucks, tanks, waste bins)
  • Gesture recognition
  • Liquid level control
  • Keystone correction for video projectors
  • Laser assisted autofocus (LAF). Enhances the camera AF system speed and robustness, especially in difficult low light or low contrast scenes
  • Augmented reality/virtual reality (AR/VR) enhancement. Dual camera stereoscopy and 3D depth assistance thanks to multizone distance measurement
  • Smart buildings and smart lighting (user detection to wake up devices)
  • IoT (user and object detection)
  • Video focus tracking: 60 Hz ranging allows optimization of continuous focus algorithm

VL53L5CX Time-of-Flight Ranging Sensor

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
TIME-OF-FLIGHT 8X8 MULTIZONE RANVL53L5CXV0GC/1TIME-OF-FLIGHT 8X8 MULTIZONE RAN2885 - ImmediateView Details
X-NUCLEO EXPANSION BOARD FOR STAX-NUCLEO-53L5A1X-NUCLEO EXPANSION BOARD FOR STA5 - ImmediateView Details
VL53L5CX NUCLEO PACK + MCU BOARDP-NUCLEO-53L5A1VL53L5CX NUCLEO PACK + MCU BOARD2 - ImmediateView Details
BREAKOUT BOARDS FOR VL53L5CXVL53L5CX-SATELBREAKOUT BOARDS FOR VL53L5CX0View Details
Published: 2021-07-20