CypressEZ－PD CCG3PAUSB Type－C控制方案详解

电子工程师 2018-06-16 11033

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描述

cypress公司的EZ-PD™ CCG3PA是高度集成的USB Type-C端口控制器，具有最新的USB Type-C和PD标准，采用Cypress公司的M0S8技术和32位Arm® Cortex™-M0处理器，集成了64KB闪存，完整的Type-C USB-PD收发器，所有的端电阻，以及用于电压（VBUS）稳压的反馈控制电路和系统级ESD保护，支持USB PD3.0 Version 1.1标准，QC 4.0，支持苹果充电2.4A，AFC，BC 1.2，主要用在PC电源适配器，移动充电器，汽车充电器和充电宝。本文介绍了EZ-PD™ CCG3PA主要特性，逻辑框图和框图，应用电路，评估板CY4532 EZ-PD™ CCG3PA EVK主要特性，以及主板和电源板主要特性，电路图，材料清单和PCB设计图。

EZ-PD™ CCG3PA is Cypress’ highly integrated USB Type-C port controller that complies with the latest USB Type-C and PDstandards and is targeted for PC power adapters， mobile chargers， car chargers， and power bank applications. In such applications，CCG3PA provides additional functionalities and BOM integration advantages. CCG3PA uses Cypress’ proprietary M0S8 technologywith a 32-bit Arm® Cortex™-M0 processor， 64-KB flash， a complete Type-C USB-PD transceiver， all termination resistors required for a Type-C port， an integrated feedback control circuitry for voltage （VBUS） regulation and system-level ESD protection. It is availablein 24-pin QFN and 16-pin SOIC packages.

EZ-PD™ CCG3PA主要特性：

Type-C Support and USB-PD Support

■ Supports USB PD3.0 Version 1.1 Spec including ProgrammablePower Supply Mode

■ Configurable resistors RP and RD

■ Supports one USB Type-C port and one Type-A port

2x Legacy/Proprietary Charging Blocks

■ Supports QC 4.0， Apple charging 2.4A， AFC， BC 1.2

■ Integrates all required terminations on DP/DM lines

Integrated Voltage （VBUS） Regulation and CurrentSense Amplifier

■ Analog regulation of secondary side feedback node （directfeedback or opto coupler）

■ Integrated shunt regulator function for VBUS control

■ Constant current or constant voltage mode

■ Supports low-side current sensing for constant current control

System-Level Fault Protection

■ VBUS to CC Short Protection

■ On-chip OVP， OCP， UVP， and SCP

■ Supports OTP through integrated ADC circuit

32-bit MCU Subsystem

■ Arm Cortex-M0 CPU

■ 64-KB Flash

■ 8-KB SRAM

Clocks and Oscillators

■ Integrated oscillator eliminating the need for external clock

Power

■ 3.0-V to 24.5-V operation （30-V tolerant）

System-Level ESD Protection

■ On CC， VBUS_C_MON_DISCHARGE， DP0， DM0， P2.2， andP2.3 pins

■ ± 8-kV Contact Discharge and ±15-kV Air Gap Discharge basedon IEC61000-4-2 level 4C

Packages

■ 24-pin QFN and 16-pin SOIC

■ Supports extended industrial temperature range（–40℃ to +105℃ ）

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图1.EZ-PD™ CCG3PA逻辑框图

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图2.EZ-PD™ CCG3PA内部框图

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图3. EZ-PD™ CCG3PA电源适配器应用框图：光耦合反馈控制（16引脚SOIC器件）

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图4. EZ-PD™ CCG3PA电源适配器应用框图：光耦合反馈控制（24引脚QFN器件）

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图5. EZ-PD™ CCG3PA电源适配器应用框图：直接反馈控制

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图6. EZ-PD™ CCG3PA汽车双端口充电器电源适配器应用框图：直接反馈控制

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图7. EZ-PD™ CCG3PA充电宝应用框图

评估板CY4532 EZ-PD™ CCG3PA EVK

The CY4532 EZ-PD™ CCG3PA Evaluation Kit （EVK） is based on the CCG3PA product family of Cypress’ USB Type-C microcontrollers. This EVK is intended to be an evaluation vehicle for USB Type-C Power Adapter （PA） and USB Type-C Power Bank （PB） applications. The kit can be configured for a PA or PB application using a combination of firmware， jumper settings on the kit hardware， and external accessories. The following paragraphs provide a brief description of both applications：

USB Type-C Power Adapter （PA）： This application is used to charge a device such as a mobile phone or notebook， which supports their battery charging through the Type-C interface. The device can be connected to the Type-C port or Type-A port on the CY4532 EVK’s Main Board. This application requires a DC input to be supplied to the EVK.

USB Type-C Power Bank （PB）： This application uses a 1-Cell or 2-Cell Lithium-ion battery connected to the CY4532 EVK， which acts as the power source to support charging on USB Type-C and USB Type-A ports. In addition， the battery can be charged using a USB Type-C Power Adapter connected to the USB Type-C port of the EVK’s Main Board.

In addition to the applications described above， the CY4532 Power Board can be used as a Programmer for Cypress EZ-PD CCGx Products supporting Configuration Channel （CC） boot-loading. See Chapter 5. Kit Operation for more details.

CY4532 EZ-PD™ CCG3PA Evaluation Kit

The CY4532 EZ-PD™ CCG3PA Evaluation Kit （EVK） is based on the CCG3PA product family of Cypress’s USB Type-C microcontrollers. This EVK is intended to be an evaluation vehicle for USB Type-C Power Adapter （PA）， USB Type-C mobile charger and USB Type-C Power Bank （PB） applications. The kit can be configured for the PA or PB application using a combination of firmware， jumper settings on the kit hardware， and external accessories.

评估板CY4532 EZ-PD™ CCG3PA EVK主要特性：

Support for USB Type-C Power Adapter， USB Type-C Mobile Charger and USB Type-C Power Bank applications

One USB Type-C Source/Sink Port and one USB Type-A Source Port

Support for Apple 2.4A， Samsung AFC， and BC1.2 charging protocols

Charging of Notebooks， Mobile Phones and USB powered devices

Support for the USB PD 3.0 standard with Programmable Power Supply （PPS） and Qualcomm Quick Charge 4.0 protocol

Support for 1-Cell and 2-Cell battery （Power Bank application）

Firmware upgradeable

评估板CY4532 EZ-PD™ CCG3PA EVK包括：

CY4532 EZ-PD CCG3PA EVK Main Board （pre-mounted on the CY4532 EVK Power Board）

CY4532 EZ-PD CCG3PA EVK Power Board

12 V 50.4 W AC/DC Power Adapter