Diodes Evb1 45w Dual Port Pd3.0 Adapter User Guide

DIODES EVB1 45W Dual Port PD3.0 Adapter

Summary

Chapter 1 provides a general description of the product and lists its key features.

General Description

The 45W Dual Port PD3.0 Adapter EVB1 is a product that provides charging capabilities for electronic devices. It is designed to be cost-effective and has a high-voltage startup with low standby power.

Key Features

The key features of the 45W Dual Port PD3.0 Adapter EVB1 are:

• CCM+Quasi-Resonant operation for NMOSFET switch Operation and
  Efficiency Improvement Approaches
• Cost-Effective Implementation for HPD Chargers
• High-Voltage Startup
• Low standby power

Testing the Evaluation Board

Chapter 5 provides instructions on how to test the evaluation board.

Input & Output Characteristics

This section provides information on the input standby power and multiple output average efficiency at different loading.

• Input Standby Power: This tests the amount of power used by the adapter when it is not in use.
• Multiple Output Average Efficiency at Different Loading: This tests the efficiency of the adapter at different loads.

Key Performance Waveforms

This section provides information on the performance waveforms of the product.

• 45W PD3.0 System Start-up Time: This tests the time it takes for the adapter to start up.

EMI (Conduction) Testing

This section provides information on the EMI (conduction) testing of the product.

Product Usage Instructions

To use the 45W Dual Port PD3.0 Adapter EVB1, follow these instructions:

1. Connect the adapter to a power source.
2. Connect your electronic device to the adapter using a compatible cable.
3. The adapter will start charging your device.
4. When your device is fully charged, disconnect it from the adapter and unplug the adapter from the power source.

Note: Refer to the user manual for further instructions on testing and troubleshooting the product.

Summary

General Description

• The 45W 67CC Dual USB Type-C® Ports PD3.0 PPS Evaluation Board (EVB) is composed of four main controllers, DIODES AP3304A, DIODES APR34910, DIODESTM AP43771V and Canyon Semiconductor’s CY6572. The AP3304A is a peak-current control, multi-mode CCM+QR PWM controller, which is optimized for high performance, low standby power and is a cost-effective offline flyback converter. The APR34910 is a secondary-side combo IC combining an N-Channel MOSFET and a driver circuit designed for synchronous rectification (SR).
• The AP43771V, a PD3.0 PPS protocol controller, automatically manages the PD3.0 PPS attachment process for the attached USB Type-C-equipped Device Under Charged (DUC), as well as regulates the feedback information of the charger to fulfill voltage and current requirements from DUC. The CY6572 is a synchronous buck controller. By communication between two separate channel AP43771V, two ports can realize plug in/out detection, dynamic Vbus adjustment to get best system efficiency, automatic power sharing once two ports both insert etc. By adopting the cost-effectiveness of NMOS FETs, the 45W 67CC EVB exemplifies HPD charger design with system BOM optimization to meet the market trend.

Key Features

System Key Features

• CCM+Quasi-Resonant operation for NMOSFET switch Operation and Efficiency Improvement Approaches
• Cost-Effective Implementation for HPD Chargers
• High-Voltage Startup low standby power (<20mW)
• Meets DOE VI and COC Tier 2 Efficiency Requirement
• USB Type-C® Port – Supports the Maximum Output of 45W PD3.0 PPS (3.3V to 21V@20mV/step, 50mA/step)
• SSR Topology Implementation with an Opto-coupler for Accurate Step Voltage / Current Control
• Low overall system BOM cost

AP3304A Key Features

• Operate CCM at low line and QR at high line
• QR Flyback Topology with Valley-on
• Wide VCC range(60V) to Guarantee Wide Range Output Voltage
• Soft Start During Startup Process
• Frequency Fold Back for High Average Efficiency
• Secondary Winding Short Protection with FOCP
• Frequency Dithering for Reducing EMI
• Useful Pin fault protection:
• SENSE Pin Floating Protection/
• FB/Opto-Coupler Open/Short Protection
• Comprehensive System Protection Feature: VOVP/OLP/BNO/SOVP/SUVP
• Mini Size Package of SOT26 (Type A1)

APR34910 Key Features

• SR Works with CCM / DCM / QR operation modes
• Integrate 100V, 9mOhm SR MOS
• Eliminate Resonant Ringing Interference
• Fewest External Components used
• SO-8 package

AP43771V Key Feature

• Supports USB PD Rev 3.0 V1.2
• USB-IF PD3.0/PPS Certified TID 4312
• Qualcomm® QC5 Certified: QC20201127203
• MTP for System Configuration
• OTP for Main Firmware
• Operating Voltage Range: 3.3V to 21V
• Built-In Regulator for CV and CC Control
• Programmable OVP/UVP/OCP/OTP
• Support Power Saving Mode
• External N -MOSFET Control for VBUS Power Delivery
• Support e-Marker Cable Detection
• QFN-14 and QFN-24

CY6572 Key Feature

• Wide Input Voltage from 4.5V to 40V
• Adjustable Switching Frequency to get high Efficiency
• High Duty-Cycle Up to 99%
• CC/CV Control
• Auto Recovery after Faults
• System Protection Feature
• Thermal Enhanced TSSOP-14 Package

Applications

• Quick Charger with full power range of PD3.0 PPS

Main Power Specifications

Evaluation Board Pictures

Power Supply Specification

Specification and Test Results

Compliance

Schematic

Board Schematic

Bill of Material (BOM)

Mainboard BOM

Master/Slave daughter board BOM

Transformer Design

Schematics Description

AC Input Circuit & Differential Filter

The Fuse F1 protects against over-current conditions which occur when some main components fails. The CM1 are common mode chocks for the common mode noise suppression. The DB is a bridge rectifier which converts alternating current and voltage into direct current and voltage. The EC1, L2, EC2, EC3 are composed of the Pi filter for filtering the differential switching noise back to AC source.

AP3304A PWM Controller

• The AP3304A is a peak-current control, multi-mode CCM+QR PWM controller which is optimized for high performance, and cost effective offline flyback converters. The AP3304A provides Mini Size Package of SOT23-6 and achieve high-power density charger applications. At no load or light load, the AP3304A enters the burst mode to minimize standby power consumption.

APR34910 Synchronous Rectification (SR) Switcher

• As a high-performance solution, The APR34910 is a secondary-side combo IC combining an N-channel MOSFET and a driver circuit designed for synchronous rectification (SR). The APR34910 effectively reduces the secondary side rectifier power dissipation which works in
  QR/DCM/CCM operation.

AP43771V PD 3.0 Decoder Interface to CY6572 Sync Buck and Power Devices

Few important pins provide critical protocol decoding and regulation functions in AP43771V:

1. CC1 & CC2 (Pin 11, 10): CC1 & CC2 (Configuration Channel 1 & 2) are defined by USB Type-C spec to provide the channel communication link between power source and sink device.
2. Constant Voltage (CV): The CV is implemented by sensing VFB (pin 8) and comparing with internal reference voltage to generate a CV compensation signal on the OCDRV pin (pin 5). The output voltage is controlled by firmware through CC1/CC2 channel communication with the sink device.
3. Constant Current (CC): The CC is implemented by sensing the current sense resistor (RCS, 10mΩ, 1%, Low TCR) and compared with internal programmable reference voltage. The output current is controlled by firmware through CC1/CC2 channel communication with the sink device.
4. OCDRV (Pin5) to CY6572 COMP (Pin 4): It is the key interface link from CC/CV loop on AP43771V to Sync Buck COMP Pin (COMP) to realize Output CC/CV control. OCDRV is connected to CY6572 Pin 4(COMP) for feedback desired information based on all sensed Vbus, Current sense and CC1 & CC2 signals for getting desired Vbus voltage and current.
5. PWR_EN (Pin2) to N-MOSFET Gate: The pin is used to turn on/off N-MOSFET (Q9) to enable/disable voltage output to the Vbus.

The interface between Master and Slave Board

Master and Slave boards build interface via I2C communication. AP43771V SDA & SDL (Pin 16, 17) are defined by I2C spec to provide the channel communication link between Master and Slave, such as plug in/out, power sharing info. etc.

The Evaluation Board (EVB) Connections

EVB PCB Layout

Main Board

Master/Slave Daughter Board

Quick Start Guide Before Connection

1. Before starting the 45W EVB test, the end user needs to prepare the following tool, software and manuals. For details, please consult USBCEE sales through the below link for further information.
   • USBCEE PD3.0 Test Kit: USBCEE Power Adapter Tester. https://www.usbcee.com/product-details/4
2. Prepare a certified three-foot Type-C cable and a Standard-A to Micro-B Cable.
3. Connect the AC inputs: L & N wires of EVB to AC power supply output “L and N “wires.
4. Ensure that the AC source is switched OFF or disconnected before the connection steps.
5. A Type-C cable for the connection between EVBs and Type-C receptacles of the test kit.
6. The output of the Type-C port & USB A-port is connected to E-load + & – terminals by cables.

Connection with E-Load

Testing the Evaluation Board

Input & Output Characteristics Input Standby Power

Average Efficiency at Different Loading

Smart Power Sharing Strategy:

Single Port Output: C_#1 or C_#2 : 20V / 2.25A

C_#1 or C_#2 : 15V / 3A

Dual Port-C Output: 110Vac

Dual Port-C Output: 230Vac

Key Performance Waveforms

45W PD3.0 System Start-up Time

Q1 / Q2 MOSFET Voltage Stress at Full Load @264Vac

Primary side MOSFET: Q1 and Secondary side SR MOSFET- Q2

System Output Ripple & Noise with the Cable

Connect 47uF AL Cap and 104MLCC to the cable output unit in parallel

Dynamic load —-0% Load~100% Load, T=20mS, Rate=15mA/uS (PCB End)

Output Voltage Transition Time from Low to High

Output Voltage Transition Time from High to Low

Thermal Testing

Output Condition : 1C:11V/1.64A 2C : 9V3A

Test Condition: Vin=90Vac @ 1C:11V/1.64A 2C : 9V3A Full load Open Frame

• DB1: Bridge Rectifier
• Q1: Primary Side High Voltage GaN FET T1: Transformer
• Q2: Secondary Side Sync-Rectifier
• L3: BUCK inductor
• Note: Component temperature can be further optimized with various system design and thermal management approaches by manufacturers.

EMI (Conduction) Testing 115Vac testing results 

Output Condition : C1:15V/2A C2 :5V/3A

230Vac testing results

Output Condition : C1:15V/2A C2 :5V/3A

IMPORTANT NOTICE

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• All other trademarks are the property of their respective owners.
• © 2023 Diodes Incorporated. All Rights Reserved.
• www.diodes.com
• 45W Dual Port PD3.0 Adapter EVB1 Revision 1.0
• www.diodes.com
• March 2023
• © 2023 Copyright Diodes Incorporated. All Rights Reserved

References

• Diodes Incorporated - Analog, Discrete, Logic, Mixed-Signal
• Diodes Incorporated - Analog, Discrete, Logic, Mixed-Signal
• Important Notice
• Terms and Conditions of Sales
• USBCEE