SDAA053 July   2025 UCG28824 , UCG28826 , UCG28828

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2UBS-PD versus Non-USB-PD
  6. 3Auxless Sensing Technology
  7. 4Design Examples
  8. 5Summary
  9. 6References

1 Introduction

UCG2882x is a high-frequency, quasi-resonant flyback converter with integrated GaN HEMT. With the advanced technologies like self-biasing and auxless sensing, UCG2882x greatly simplifies the USB-PD adapter design, achieving high efficiency, how power density and low standby power.

UCG2882x integrates all the essential functions for UBS-PD adapter design, minimizes the external component count. However, because the device features are designed targeting for USB-PD, when used for non-USB-PD applications, some design tricks are needed to make the design work.