SLVAEE9A October   2019  – July 2021 TPS2065C , TPS2065D , TPS2069C , TPS2069D , TPS25221

 

  1.   Trademarks
  2. 1Introduction
  3. 2Root cause of False Fault Glitch
  4. 3Solution for the Fault Glitch
    1. 3.1 With RC Filter to Eliminate Fault Glitch as Start-Up
    2. 3.2 Validate the Influence of RC Filter to Normal Operation
  5. 4Summary
  6. 5Revision History

4 Summary

The RC filter workaround can help solve the power switch fault glitch issue during Vin startup. The workaround will cause a delay on normal fault condition. The delay duration depends on the RC value. Comparing with internal fault glitch time, 8-9 ms, the 1.55 ms delay time is relatively less impact and can be compromised.