45W USB PD 3.0 Adaptor EV1 Board User Guide
45W USB PD 3.0 AP3108L+APR346+CY2311 Page 1 of 28 7-1-2018
Release 1.0 www.diodes.com
Table of Contents
Chapter 1. Summary_________________________ 2
1.1 General Description _______________________ 2
1.2 Key Features _____________________________ 2
1.2.1 System Key Features_________________________ 2
1.2.2 AP3108L Key Features _______________________ 2
1.2.3 APR346 Key Features ________________________ 2
1.2.4 CY2311_16L Key Feature _____________________ 2
1.3 Applications______________________________ 2
1.4 Main Power Specifications (CV & CC Mode) ____ 2
1.5 Evaluation Board Picture ___________________ 2
Chapter 2. Power Supply Specification__________ 3
2.1 Specification and Test Results _______________ 3
2.2 Compliance ______________________________ 3
Chapter 3. Schematic ________________________ 4
3.1 EV1 Board Schematic ______________________ 4
3.2 Bill of Material (BOM)______________________ 4
3.3 Transformer Design Specification ____________ 6
3.4 Schematics Description_____________________ 7
3.4.1 AC Input Circuit & Differential Filter ____________ 7
3.4.2 AP3108L PWM Controller_____________________ 7
3.4.3 APR346 Synchronous Rectification (SR) MOSFET
Driver _________________________________________ 7
3.4.4 CY2311_16L PD3.0+ Decoder & Protection on /off P
MOSFET and Interface to Power Devices _____________ 7
Chapter 4. The Evaluation Board (EVB) Connections8
4.1 EVB PCB Layout ___________________________ 8
4.2 Quick Start Guide Before Connection _________ 8
4.3 System Setup_____________________________ 9
4.3.1 Connection with E-Load ______________________ 9
4.3.2 Canyon –Quick Charge 4/4+ Test Kit ___________10
4.3.3 Input & Output Wires Connection _____________ 10
Chapter 5. Testing the Evaluation Board________ 11
5.1 Input & Output Characteristics______________ 11
5.1.1 Input Standby Power _______________________11
5.1.2 Input Power Efficiency at Different AC Line Input
Voltage _______________________________________ 11
5.1.3 Average Efficiency at Different Loading ( @ PCB end)
_____________________________________________12
5.2 Key Performance Waveforms _______________ 12
5.2.1 45W PD3.0 System Start-up Time & Hold-up Time 12
5.2.2 Q1 /Q2 Main Switching Voltage MOSFET Stress on at
20V/ 2.25A Loading @264Vac ____________________ 13
5.2.3 System Output Ripple & Noise with @ PCB End _ 13
5.2.4 Dynamic load ----0A-3A 10mS 125mA/uS( PCB End)
_____________________________________________ 17
5.2.5 Output Voltage Transition Time ______________ 19
5.2.6 Output Voltage Transition Time from High to Low 21
5.2.7 Thermal Testing ___________________________ 22
