SCPA071 February   2024 SN3257-Q1 , TMUX1308-Q1 , TMUX1308A-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Typical Application
  6. 3Summary
  7. 4References

3 Summary

In conclusion, Short to Battery protection is a critical need in automotive applications where a design needs to account for various I/O signals shorting to your battery voltage. In this application note we studied what Short to Battery protection is, how Current Injection affects it and how a device with Current Injection Control can help add robustness to your automotive system. Next, several use cases were observed using a 5V supply. By choosing a TI analog switch or multiplexer that has Injection Current Control and no internal diode path to supply you can add flexibility to your system while also making sure of safety and quality.