SLUAAT9 January   2024 LM5101A , UCC27201A , UCC27201A-Q1 , UCC27211A , UCC27282 , UCC27282-Q1 , UCC27284 , UCC27284-Q1 , UCC27301A-Q1 , UCC27311A-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Start-Up Operation
  5. 2Design Considerations
  6. 3Proper Sizing of Bootstrap and VDD Capacitors
  7. 4High Power Continuous Operation
  8. 5Design Considerations
  9. 6Summary
  10. 7References

6 Summary

This application note has clearly identified some of the critical operating modes of bi-directional DC-DC converter where special design attention is needed from the half-bridge gate driver perspective. This paper has made very clear recommendation regarding boot-strap bias circuit design, including bootstrap diode and bootstrap capacitor. These guidelines and recommendation shall help many design engineers to build robust, efficient, and reliable bi-directional DC-DC converters for many automotive and industrial applications.