Getting started with the 45 W wall adapter solution for USB adapter solution for USB Type-C Power Delivery

Topologie: Flyback
Eingangsspannung (min.): 85.00 V
Eingangsspannung (max.): 264.00 V
Schaltfrequenz (max.): 260.00 kHz
Ausgang 1: 15.00 V / 3.000 A

Erstveröffentlichung am 23.10.2017, Version 1 vom


This board has been physically tested and validated; it is not for sale.This USB Power Delivery wall adapter is a USB-IF certified solution with a 45 W isolated power supply with USB Power Delivery controller.This USB Type-C PD wall power adapter design is for universal line voltage applications based on the STCH02 Primary controller and STUSB4700 USB PD controller.The 5 V, 9 V and 15 V USB output voltage profiles all have a 3 A rating.The offline power supply is implemented in an isolated flyback topology based on the STCH02 quasi-resonant controller with ultra-low standby power consumption. The USB Power Delivery (PD) is managed by the STUSB4700 and is Type-C compatible: power negotiation, Vbus discharge, protections, etc. are entirely managed by the IC.The USB power supply architecture connects a power board with a controller board. This design optimizes the form factor and lets you scale the power section up or down to suit different USB Power Adapter applications.


  • USB wall power adapter input: 85 VAC to 264 VAC
  • USB voltage output: 5 V, 9 V and 15 V
  • Current limit: 3 A for all voltage level profiles
  • Load power limited to 45 W
  • Cable compensation
  • Isolated quasi-resonant flyback
  • Efficiency 90% (approx.)
  • USB Type-C Power Delivery compatible
  • USB-IF certified


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