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  • Accurate Low Latency Linear Position Sense Reference Design With Quad 3D Hall-Sensors

    • TIDUF78 May   2024

       

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  • Accurate Low Latency Linear Position Sense Reference Design With Quad 3D Hall-Sensors
  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   Design Images
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
  9. 3System Design Theory
    1. 3.1 Hardware Design
    2. 3.2 Software Design
      1. 3.2.1 TMAG5170 SPI Frame
        1. 3.2.1.1 Serial Data In 32-Bit Frame
        2. 3.2.1.2 Serial Data Out 32-Bit Frame
      2. 3.2.2 TMAG5170 Register Configuration
      3. 3.2.3 SPI and Start-of-Conversion Timing
      4. 3.2.4 Linear Position Calculation
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware
      1. 4.1.1 PCB Overview
      2. 4.1.2 MCU Interface Connector
    2. 4.2 Test Setup
    3. 4.3 Test Results
      1. 4.3.1 Magnetic Z and X Field Measurement
      2. 4.3.2 Linear Position Measurement
      3. 4.3.3 SPI Signal Measurement
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
      3. 5.1.3 PCB Layout
        1. 5.1.3.1 Layout Prints
        2. 5.1.3.2 Layout Guidelines
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  12. 6About the Author
  13. IMPORTANT NOTICE
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Design Guide

Accurate Low Latency Linear Position Sense Reference Design With Quad 3D Hall-Sensors

Description

This reference design demonstrates precision, low latency linear position sensing of a N45 magnet target using single or multiple equidistant placed 3D Hall-effect sensors TMAG5170 with high-speed 10MHz SPI, where the Z-axis and X-axis magnetic field strength as well as CRC data are transmitted in a single 32-bit frame for low latency and enhanced data integrity. The digital interface with 3.3V I/O is compatible to the C2000™ MCU LaunchPad and enables evaluation of our 3D Hall-effect sensing technology with a C2000™, Sitara or other MCUs.

 
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