Overview

Description

The ISL29501 is a Time of Flight (ToF) based signal processing integrated circuit. The sensor enables low cost, low power, and long range optical distance sensing when combined with an external emitter and detector. The ISL29501 has a built-in current DAC circuit that drives an external LED or laser. The modulated light from the emitter is reflected off the target and is received by the photodiode. The photodiode then converts the returned signal into current, which is used by the ISL29501 for signal processing. An on-chip Digital Signal Processor (DSP) calculates the time of flight, which is proportional to the target distance. The ISL29501 is equipped with an I2C interface for configuration and control. Use of an external photodiode and emitter allows the user to optimize the system design for performance, power consumption, and distance measurement range that suit their industrial design. The ISL29501 is wavelength agnostic and permits the use of other optical wavelengths if better suited for applications.

Features

  • Enables proximity detection and distance measurement
  • Modulation frequency of 4.5MHz
  • Emitter DAC with programmable current up to 255mA
  • Operates in Continuous and Single Shot mode
  • On-chip active ambient light rejection
  • Auto gain control mechanism
  • Interrupt controller
  • Supply voltage range of 2.7V to 3.3V
  • I2C interface supporting 1.8V and 3.3V bus
  • Low profile 24 Ld 4x5 QFN package

Applications

  • Precise long-range distance measurement
    • Drone / robot collision avoidance and soft landings
    • Industrial automation
    • Car parking sensors
    • Gate and door sensors
    • Silo level monitoring
    • Intermodal and ocean container cargo loading sensors
  • Human presence detection and obstacle avoidance
    • Smart homes and offices
    • Smart appliances, toilets and fixtures
    • Smart kiosks
    • People counting

Documentation

Title Type Date
PDF1001 KB
Datasheet
PDF164 KB
Application Note
PDF442 KB
Application Note
PDF331 KB
Application Note
PDF280 KB
Application Note
PDF1007 KB
Application Note
PDF1.31 MB
Manual - Development Tools
PDF1.31 MB
Manual - Development Tools
PDF4.12 MB
Manual - Development Tools

Design & Development

Software & Tools

Software Downloads

Title Type Date
ZIP1.36 MB
PCB Design Files
ZIP2.26 MB
Software & Tools - Evaluation Software
ZIP11 KB
Software & Tools - Other

Boards & Kits

Boards & Kits

Models

Support