原标题：Microchip USB5826六端口USB 3．1 Gen 1智能集线器解决方案

　　microchip公司的USB5826是六端口USB 3.1 Gen 1智能集线器控制器,支持双USBType-CTM DFP,具有用于嵌入USB应按用的先进特性.USB5826完全和USB Revision 3.1标准和USB 2.0Link电源管理附录兼容.支持5Gbps超速(SS),480 Mbps高速(HS), 12 Mbps全速(FS)和1.5 Mbps低速(LS).USB5826通过专用的USB 2.0集线器控制器还支持以前的确USB速度(HS/FS/LS).超速集线器控制器和USB 2.0集线器控制器并行工作,由于较低的USB 2.0流量解决了5Gbps SS数据传输瓶颈问题.主要用在单独可用的USB集线器,笔记本电脑坞站,PC母板,PC监视器坞站,多功能 USB 3.1 Gen 1外设.中电网为您整理如下详细资料,本文介绍了USB5826亮点,主要特性,应用电路以及评估板EVB-USB5816主要特性,框图,电路图,材料清单和PCB设计图.

　　6-Port USB 3.1 Gen 1 Smart Hub with Support for Dual USB Type-CTM DFPs

　　The Microchip USB5826 hub is a low-power, OEM configurable, USB 3.1 Gen 1 hub controller with 6 downstream ports and advanced features for embedded USB applications. The USB5826 is fully compliant with the Universal Serial Bus Revision 3.1 Specification and USB 2.0 Link Power Management Addendum. The USB5826 supports 5 Gbps Super-Speed (SS), 480 Mbps Hi-Speed (HS), 12 Mbps Full-Speed (FS), and 1.5 Mbps Low-Speed (LS) USB downstream devices on all enabled downstream ports.

　　The USB5826 supports the legacy USB speeds (HS/FS/LS) through a dedicated USB 2.0 hub controller that is the culmination of five generations of Microchip hub controller design and experience with proven reliability, interoperability, and device compatibility. The SuperSpeed hub controller operates in parallel with the USB 2.0 hub controller, decoupling the 5 Gbps SS data transfers from bottlenecks due to the slower USB 2.0 traffic.

　　The USB5826 hub feature controller enables OEMs to configure their system using “Configuration Straps.” These straps simplify the configuration process, assigning default values to USB 3.1 Gen 1 ports and GPIOs. OEMs can disable ports, enable battery charging, and define GPIO functions as default assignments on power-up, removing the need for OTP or external SPI ROM.

　　The USB5826 supports downstream battery charging via the integrated battery charger detection circuitry, which supports the USB-IF Battery Charging (BC1.2) detection method and most Apple devices. The USB5826 provides the battery charging handshake and supports the following USB-IF BC1.2 charging profiles:

　　• DCP: Dedicated Charging Port (Power brick with no data)

　　• CDP: Charging Downstream Port (1.5A with data)

　　• SDP: Standard Downstream Port (0.5A with data)

　　• Custom profiles loaded via SMBus or OTP

　　Additionally, the USB5826 includes many powerful and unique features such as:

　　The Hub Feature Controller, which provides an internal USB device dedicated for use as a USB to I2C/UART/SPI/ GPIO interface, allowing external circuits or devices to be monitored, controlled, or configured via the USB interface. PortSwap, which adds per-port programmability to USB differential-pair pin locations. PortSwap allows direct alignment of USB signals (D+/D-) to connectors to avoid uneven trace length or crossing of the USB differential signals on the PCB.

　　PHYBoost, which provides programmable levels of Hi-Speed USB signal drive strength in the downstream port transceivers. PHYBoost attempts to restore USB signal integrity in a compromised system environment. The graphic on the right shows an example of Hi-Speed USB eye diagrams before and after PHYBoost signal integrity restoration. In a compromised system environment.

　　VariSense, which controls the USB receiver sensitivity enabling programmable levels of USB signal receive sensitivity.

　　This capability allows operation in a sub-optimal system environment, such as when a captive USB cable is used.

　　Port Split, which allows for the USB3.1 Gen1 and USB2.0 portions of downstream ports 3 and 4 to operate independently and enumerate two separate devices in parallel in special applications.

　　USB Power Delivery Billboard Device, which allows an internal device to enumerate as a Billboard class device when a Power Delivery Alternate Mode negotiation has failed. The Billboard device will enumerate temporarily to the host PC when a failure occurs, as indicated by a digital signal from an external Power Delivery controller.

　　The USB5826 can be configured for operation through internal default settings. Custom OEM configurations are supported through external SPI ROM or OTP ROM. All port control signal pins are under firmware control in order to allow for maximum operational flexibility, and are available as GPIOs for customer specific use.

　　The USB5826 is available in commercial (0℃ to +70℃) and industrial (-40℃ to +85℃) temperature ranges.

　　USB5826亮点:

　　• USB Hub Feature Controller IC Hub with:

　　- 2 USB 3.1 Gen 1 USB Type-CTM downstream ports

　　- 2 USB 3.1 Gen 1 legacy downstream ports

　　- 2 USB 2.0 downstream ports

　　- Legacy upstream port

　　• USB-IF Battery Charger revision 1.2 support on up & downstream ports (DCP, CDP, SDP)

　　• Internal Hub Feature Controller device enables:

　　- USB to I2C/SPI/GPIO bridge endpoint support

　　- USB to internal hub register write and read

　　• USB Link Power Management (LPM) support

　　• Enhanced OEM configuration options available through either OTP or SPI ROM

　　• Available in 100-pin (12mm x 12mm) VQFN RoHS compliant package

　　• Commercial and industrial grade temperature Support

　　USB5826主要优势:

　　• USB 3.1 Gen 1 compliant 5 Gbps, 480 Mbps, 12 Mbps, and 1.5Mbps operation

　　- 5V tolerant USB 2.0 pins

　　- 1.32V tolerant USB 3.1 Gen 1 pins

　　- Integrated termination and pull-up/down resistors

　　• Native USB Type-C Support

　　- Integrated Multiplexer on USB Type-C enabled ports

　　- USB 3.1 Gen 1 PHYs are disabled until a valid

　　USB Type-C attach is detected, saving idle power

　　• Supports battery charging of most popular battery powered devices on all ports

　　- USB-IF Battery Charging rev. 1.2 support (DCP, CDP, SDP)

　　- Apple® portable product charger emulation

　　- Chinese YD/T 1591-2006 charger emulation

　　- Chinese YD/T 1591-2009 charger emulation

　　- European Union universal mobile charger support

　　- Support for Microchip UCS100x family of battery charging controllers

　　- Supports additional portable devices

　　• Smart port controller operation

　　- Firmware handling of companion port power controllers

　　• On-chip microcontroller

　　- manages I/Os, VBUS, and other signals

　　• 8 KB RAM, 64 KB ROM

　　• 8 KB One-Time-Programmable (OTP) ROM

　　- Includes on-chip charge pump

　　• Configuration programming via OTP ROM, SPI ROM, or SMBus

　　• PortSwap

　　- Configurable USB 2.0 differential pair signal swap

　　• PHYBoostTM

　　- Programmable USB transceiver drive strength for recovering signal integrity

　　• VariSenseTM

　　- Programmable USB receive sensitivity

　　• Port Split

　　- USB2.0 and USB3.1 Gen1 port operation can be split for custom applications using embedded USB3.x devices in parallel with USB2.0 devices.

　　• USB Power Delivery Billboard Device Support

　　- Internal port can enumerate as a Power Delivery Billboard device to communicate Power Delivery Alternate Mode negotiation failure cases to USB host

　　• Compatible with Microsoft Windows 10, 8, 7, XP, Apple OS X 10.4+, and Linux hub drivers

　　• Optimized for low-power operation and low thermal dissipation

　　• Package

　　- 100-pin VQFN (12mm x 12mm)

　　USB5826目标应用:

　　• Standalone USB Hubs

　　• Laptop Docks

　　• PC Motherboards

　　• PC Monitor Docks

　　• Multi-function USB 3.1 Gen 1 Peripherals

　　评估板EVB-USB5816

　　The EVB-USB5816 Evaluation Kit is a demonstration and evaluation platform that provides

　　the necessary requirements and interface options for evaluating the EVB-USB5816, a 6-port SuperSpeed (SS) USB SmartHub™ IC on a four-layer RoHS-compliant Printed Circuit Board (PCB). This allows users to gain an understanding of the product and accelerate the integration of the EVB-USB5816 into their design.

　　The EVB-USB5816 is compliant with the USB 2.0 Hi-Speed (HS), Full-Speed (FS), and Low-Speed (LS) USB signaling. The EVB-USB5816 is also compliant with USB 3.2 Gen1 on the upstream port and on downstream ports 1 to 5.

　　The evaluation platform supports six downstream ports: one USB3.1 Gen1 Type-C® port, four USB3.1 Gen1 ports and one USB2.0 port with Type-A connectors. The EVB-USB5816 platform also supports battery charging on all six downstream ports.

　　The EVB-USB5816 has two configurations for operation through internal default settings and supports custom configurations through the external 16-Mbit SPI Flash device.

　　The EVB-USB5816 demonstrates driver compatibility with Microsoft® Windows® 10, Windows 8.x, Windows 7, Windows XP, Mac OS® X 10.4+, and Linux® hub drivers.

　　评估板EVB-USB5816主要特性:

　　• Microchip’s PortSwap, PHYBoostTM, and VariSenseTM technologies

　　• EVB-USB5816 in a 100-pin QFN RoHS-compliant package

　　• USB 3.2 compliant (Gen1 operation)

　　• USB 2.0 compliant (HS, FS, and LS operation)

　　• 5V-tolerant USB pins

　　• Self-powered operation

　　• USB Gen1 Type-B upstream port

　　• Six downstream USB ports:

　　- Five Gen1 downstream ports (Port 1 is a Type-C port.)

　　- One USB 2.0-only downstream port

　　• All downstream ports support individual port power and overcurrent sense.

　　• All downstream ports can be enabled for battery charging with the battery charging select switches on SW3 (BC1.2 or SE1, 2.1A maximum per port)

　　• Onboard SPI Flash for external downloadable firmware

　　• Operates from a single-voltage (+12.0V, regulated) external power supply

　　• Onboard 25 MHz crystal or oscillator input

　　• Single onboard +5.2V, 15A regulator

　　• Single onboard +3.3V, 0.5A regulator

　　• Single onboard +1.2V, 2A regulator

　　• Port Power LED indicators

　　• SPI Flash activity blue LED indicator

　　• Reset red LED indicator

　　• Green LED indicators for 5V, 3.3V, and 1.2V regulator outputs

　　• Terminal block connector for use with an external 12 VDC bench supply

　　• Barrel connector for use with a Microchip 12V power supply

　　• Removable or non-removable downstream ports options can be configured with select switches on SW4.

　　• Bridge peripheral functions:

　　- USB-to-I2C

　　The EVB-USB5816 Evaluation Kit includes the basic equipment necessary for evaluation.

　　The items included in the kit are:

　　• EVB-USB5816 Evaluation Board

　　• Type-A to Type-B USB cable

　　图.评估板EVB-USB5816框图

　　图.评估板EVB-USB5816 REV B外形图(正面)

　　图.评估板EVB-USB5816电路图(1)

　　评估板EVB-USB5816材料清单: