USB供電( PD)控制器--STUSB4710特性分析

ST公司的STUSB4710是USB供電( PD)控制器,集成了放電通路,能在Type-C?配置通路引腳(CC)通信,以判斷對所需要的消費設備提供一定的功率源.器件不用MCU就能處理連接到UFP或DRP,完全和USB Type-C? rev 1.2以及USB PD rev 2.0兼容,主要用在計算機,消費類或手持消費類電子的AC適配器和電源,智能插座和適配器,電源集線器和塢站,顯示器和任何的Type-C源器件.本文介紹了STUSB4710主要特性,功能框圖以及降壓拓撲和反激拓撲應用電路,以及評估板STEVAL-ISC004V1主要特性,框圖,電路圖,材料清單和PCB設計圖.

The STUSB4710 is a new family of USB power delivery controllers communicating over Type-C? configuration channel pins (CC) to negotiate a given amount of power to be sourced to an inquiring consumer device.

The STUSB4710 addresses provider/DFP devices such as notebooks, tablets and AC adapters. The device can handle any connections to a UFP or DRP without any MCU attachment support, from device attachment to power negotiation, including VBUS discharge and protections.

The STUSB4710 is an autonomous USB power delivery controller optimized as a provider. It offers an open-drain GPIO interface to make direct interconnection with a power regulation stage.

The STUSB4710 offers the benefits of a full hardware USB PD stack allowing robust and safe USB PD negotiation in line with USB PD standard. The STUSB4710 is ideal for provider applications in which digital or software intelligence is limited or missing.

The STUSB4710 main functions are:
? Detect the connection between two USB ports (attach detection)
? Establish a valid host to device connection
? Discover and configure VBUS: Type-C low, medium or high current mode
? Resolve cable orientation
? Negotiate a USB power delivery contract with a PD capable device
? Configure the power source accordingly
? Monitor VBUS, manage transitions, handle protections and ensure user and device safety Additionally, the STUSB4710 offers 5 customizable power data objects (PDOs), 5 general purpose I/Os, an integrated discharge path, and is natively robust to high voltage peaks.

STUSB4710主要特性:

? USB power delivery (PD) controller
? Type-C attach and cable orientation detection
? Single role: provider - DFP
? Full hardware solution - no software
? I2C interface (optional connection to MCU)
? Support all USB PD profiles: up to 5 power data objects (PDO)
? Configurable start-up profiles
? Integrated VBUS voltage monitoring
? Internal and/or external VBUS discharge path
? Short -to-VBUS protections on CC pins (22 V) and VBUS pins (28 V)
? Wide power supply input:
? VDD = [4.1 V; 22 V]
? Temperature range: -40℃ up to 105℃
? Fully compatible with:
? USB Type-C? rev 1.2
? USB PD rev 2.0
? Certification test ID: 1000125 (QFN24)

STUSB4710應用:

? AC adapters and power supplies for: computer, consumer or portable consumer applications
? Smart plugs and wall adapters
? Power hubs and docking stations
? Displays
? Any Type-C source device

圖1.STUSB4710功能框圖

圖2.STUSB4710應用電路:降壓拓撲電源

圖3STUSB4710應用電路:反激拓撲電源

評估板STEVAL-ISC004V1

The STEVAL-ISC004V1 evaluation board is a ready-to-use USB PD source based on STUSB4710A and ST1S14 ICs. It demonstrates how to convert a fixed voltage DC power input into a USB PD variable voltage output.

The STUSB4710A acts as a Type-C port interface that ensures power delivery advertising and negotiation, drives the DC-to-DC converter and power paths, and monitors VBUS voltage.

The ST1S14 device manages the step down conversion from the DC input port to the negotiated VBUS voltage.

The various LEDs indicate the operating status of the STUSB4710A and USB PD port. The USB PD port is pre-configured with five different PDOs to address a broad range of applications (5V, 9V, 12V, 15V and 20V).

評估板STEVAL-ISC004V1主要特性:

? 1 x USB PD port (source)
? STUSB4710A USB power delivery controller
? Compliant with:
? USB Type-C r1.2
? USB PD r2.0
? On-board DC-DC
? VBUS power switches and discharge path
? Support for up to 5 power data objects (PDO)
? Short-to-VBUS protections on CC pins (22 V) and VBUS pins (28 V)
? Customizable start-up profiles
? Compatible with NUCLEO-F072RB board for configuration and debug interface
? RoHS compliant

圖4.評估板STEVAL-ISC004V1外形圖

圖5.評估板STEVAL-ISC004V1功能框圖

圖6.評估板STEVAL-ISC004V1電路圖
評估板STEVAL-ISC004V1材料清單:

圖7.評估板STEVAL-ISC004V1 PCB設計圖(1):頂層

圖8.評估板STEVAL-ISC004V1 PCB設計圖(2):底層

圖9.評估板STEVAL-ISC004V1 PCB設計圖(3):頂層絲印

圖10.評估板STEVAL-ISC004V1 PCB設計圖(4):底層絲印

圖11.評估板STEVAL-ISC004V1 PCB設計圖(5):頂層裝配

圖12.評估板STEVAL-ISC004V1 PCB設計圖(6):底層裝配
詳情請見:

/24/4e/67/ed/d6/4b/af/DM00383615/files/DM00383615.pdf/jcr:content/translations/en.DM00383615.pdf
和
/f2/26/d1/cb/5a/4a/21/DM00437496/files/DM00437496.pdf/jcr:content/translations/en.DM00437496.pdf
以及:content/translations/en.steval-isc004v1_schematic.pdf
en.DM00383615.pdf
en.DM00437496.pdf
en.steval-isc004v1_bom.pdf
en.steval-isc004v1_schematic.pdf