SDAA526 September   2026 THVD4431A

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2THVD4431A RS-485 Half-Duplex Operation
    1. 2.1 Mode Configuration
    2. 2.2 Driver Disable Timing
  6. 3System-Level Transient Behavior
    1. 3.1 What Is Observed
    2. 3.2 Why It Occurs
  7. 4Design Recommendations
    1. 4.1 Increase Differential Bus Capacitance
    2. 4.2 Add Bus Biasing Resistors
    3. 4.3 Ferrite Bead Selection
    4. 4.4 Software Consideration
  8. 5Summary
  9. 6References

4 Design Recommendations

The following design practices verify robust communication when using THVD4431A or any high-speed RS-485 transceiver.