TIDU470A September   2014  – January 2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1 Key System Specifications
  8. 2 System Description
  9. 3 Block Diagram
    1. 3.1 Highlighted Products
      1. 3.1.1 DRV81646
      2. 3.1.2 ISO6441 and ISO6421
      3. 3.1.3 LM5009
      4. 3.1.4 TLC5927
  10. 4 System Design Theory
    1. 4.1 Low-Side Driver Selection
    2. 4.2 Thermal Management
    3. 4.3 Switch Off an Inductive Load
    4. 4.4 Switching Light Bulbs
  11. 5 Getting Started Hardware
    1. 5.1 Serial Peripheral Interface (SPI)
    2. 5.2 Fault Signal
    3. 5.3 Power Supply
    4. 5.4 Output and Field Power Connector
  12. 6 Getting Started Firmware
    1. 6.1 Data Bits
    2. 6.2 GPIO for SPI
  13. 7 Test Setup
    1. 7.1 Output Current Capability
    2. 7.2 Rise and Fall Times, Propagation Delay
  14. 8 Test Data
  15. 9 Design Files
    1. 9.1 Schematics
    2. 9.2 Bill of Materials
    3. 9.3 PCB Layout
      1. 9.3.1 Layer Plots
      2. 9.3.2 Layout Recommendations
    4. 9.4 Altium Project
    5. 9.5 Gerber Files
    6. 9.6 Assembly Drawings
    7. 9.7 Software Files
  16. 10References
  17. 11About the Author
  18. 12Revision History

12 Revision History

Changes from Revision * (September 2014) to Revision A (January 2026)

  • Updated the numbering format for tables, figures, and cross-references throughout the document.Go
  • Changed device support throughout the document from ISO7141 and ISO7421 to ISO6441 and ISO6421. Additionally, changed DRV8804 to DRV81646.Go