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

7 Summary

The proposed output voltage clamping scheme helps to reduce system hold-up capacitor and FET SOA stress resulting in a robust, cost-effective, and smaller design. The design is highly scalable and can reliably address system transients in high power base band unit (BBU) and Active antenna end-equipment.