SDAA026 June   2025 TPSI3052

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Using a Solid-State Relay as an Isolated 15V Supply
  6. 3Topology of Totem Pole PFC for Applying Turn On Switch
  7. 4Original Implementation for Driving PFC Slow Switch at High-side and Low-side
  8. 5Achieving Performance for Driving PFC Slow Switch at High-side and Low-side
  9. 6Test Results Comparing Before and After for High-side Implementation
  10. 7Summary
  11. 8References

7 Summary

This application note describes how to enable operation with DC input voltage (battery), and to solve the issue of when the polarity of the DC input voltage is reversed (live terminal (-) voltage, neutral terminal (+) voltage). The VDD of the driver IC high-side is generated using TPSI3052. The high-side FET operates normally even when the DC input is used.