SLLA639 May   2024 THVD1419 , THVD1429 , THVD1439 , THVD1449 , THVD2419 , THVD2429

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Discrete Approach to RS-485 Surge Protection
  6. 3Integrated Surge Protection and the THVD14x9 Family of Devices
  7. 4THVD24x9x – The Next Generation of Integrated Surge Protected RS-485 Devices from TI
  8. 5Summary
  9. 6References

5 Summary

Surge protection is a necessary part of many RS-485 designs. In the past, designers were primarily forced to use discrete protection implementations – which varied from simple diode and resistor setups to more robust architectures including MOVs and TBUs. TI’s two main lines of surge protected RS-485 devices, THVD14x9 and THVD24x9x, can help designers simplify their surge protected RS-485 systems. Using one of TI’s surge protected offerings can help a designer, simplify design and component selection, reduce the total design size of the system, be placed in either more standard RS-485 systems (using the THVD14x9 line with devices like THVD1419 or THVD1439) or harsher RS-485 systems which can require larger standard operational ranges (using the THVD24x9x line with devices like THVD2419 and THVD2429).