SLVAFT6 September   2024 TPS23521 , TPS23523 , TPS23525

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Existing Design and Challenges
  6. 3Negative Hot-Swap Controller – TPS2352x
  7. 4Output Voltage Clamping with TPS2352x
  8. 5Design Procedure and Implementation
    1. 5.1 Configuring the Current Limit Switch-Over Threshold for TPS2352x
    2. 5.2 Feedback and Control Loop Response
    3. 5.3 Powering the Feedback Amplifier
    4. 5.4 Noise Immunity
  9. 6Test Results
    1. 6.1 Startup
    2. 6.2 NEBS Transient Response
  10. 7Summary
  11. 8References

5.4 Noise Immunity

Owing to the harsh and noisy environment of the telecom system, the recommendation is to add a small filter capacitor (approximately 1nF) between the input pins of the op-amp OPA863.