VL817 (4-Port/ 2-Port)
USB 3.2 Gen1, 5Gbps
Integrated BB + HID
Smart Charging 2 Smart Management Low Power
Integrated DC-DC
QFN76 9x9mm (4-port) QFN56 7x7mm (2-port)
VL817是一个现代USB 3.1第一代集线器控制器，具有优化的成本结构和完全符合USB 3.1第一代规范，包括ecn和合规测试更新至2017年1月。VL817提供2端口和4端口配置，并具有集成稳压器，新的低功耗设计，和全面的USB充电支持。VL817支持SuperSpeed (5Gbps)、High Speed (480Mbps)、Full Speed (12Mbps)和Low Speed (1.5Mbps)设备的任何组合，集成的USB 2.0集线器的多事务翻译器功能提供了更高的性能，当多个Full Speed设备同时使用时。集成的5V DC-DC开关稳压器使VL817可以直接从5V USB VBus供电，在提供高功率效率的同时降低了BOM成本。
VL817具有灵活的固件架构，提供了自定义功能框架，以及字段更新。各种参数，包括Tx均衡设置和GPIO行为可以通过固件进行更改，包括可选配置的USB充电控制器，用于充电各种设备，如智能手机和平板电脑。
基于vl817的集线器设备可以在Windows、Mac OS X和各种Linux内核下工作，无需额外的驱动程序。基于vl817的集线器设备还兼容支持USB集线器功能的非x86设备和平台，如智能手机、平板电脑和机顶盒。它非常适合所有USB集线器应用程序，如独立的USB集线器，笔记本/超极本坞站/端口复制器，桌面PC前面板，主板集线器，和USB集线器复合设备。VL817集成了多个可选的USB 2.0虚拟设备，包括USB公告牌，USB HID，以支持媒体控制按钮，如播放/暂停，音量上/下等。
关键特性
USB 3.1兼容的
—符合通用串行总线3.1规范
-满足所有USB 3.1 ECN到2017年1月
-兼容通用串行总线2.0规范USB 2.0集线器支持MTT
—支持超高速、高速、全速和低速设备的任意组合同时运行
-内部USB PHY采用先进的CMOS工艺，低功耗集成USB设备
- USB HID类设备(可选)
作为USB 2.0虚拟设备实现，方便FW更新或媒体控制按钮
可配置行为-始终存在/禁用
- USB公告牌1.1类设备(可选)
实现为USB 2.0虚拟设备
可配置的行为-暴露时，必要/总是呈现/禁用全边带信号支持
—支持所有端口的“独立”和“集群”操作
-支持PWM LED状态灯
- SPI固件接口。固件升级可通过USB。
—特殊应用管理接口
- DFPs的任何组合可以配置为支持USB电池充电综合USB电池充电支持
-支持USB电池充电规格v1.2 (SDP, CDP, DCP)
-支持供应商特定的收费模式。苹果2.4A，三星等。
-支持YD/T 1591-2009
—当系统处于挂起、关机或断开状态时，支持单机充电
- DFPs的任何组合可以配置为支持USB电池充电电源和包
—需要3.3V和1.1V输入
- 25兆赫晶体
-集成电压调节器从5V输入产生所有需要的电压
5V至1.1V切换DC-DC稳压器
5V至3.3V LDO调节
QFN 76L绿色包装(9x9x0.85 mm)
QFN 56L绿色包装(7x7x0.85 mm)
Key Features
USB 3.1 Compliant
- Compliant to Universal Serial Bus 3.1 Specification
- Meets all USB 3.1 ECN through Jan 2017
- Compliant to Universal Serial Bus 2.0 Specification USB 2.0 Hub Supports MTT
- Supports Simultaneous Operation of Any Combination of SuperSpeed, High-Speed, Full-Speed, and Low-Speed Devices
- In-house USB PHY employs advanced CMOS process for low power consumptionIntegrated USB Devices
- USB HID Class Device (Optional)
Implemented as a USB 2.0 Virtual Device, Facilitates FW Update or Media Control Buttons
Configurable Behavior – Always Present / Disabled
- USB Billboard Class 1.1 Device (Optional)
Implemented as a USB 2.0 Virtual Device
Configurable Behavior – Expose When Necessary / Always Present / DisabledFull Sideband Signal Support
- Supports both Individual and Ganged Mode Operation for All Ports
- Supports PWM LED Status Lights
- SPI Interface for Firmware. Firmware Upgradable over USB.
- Management Interface for Specialized Applications
- Any Combination of DFPs can be Configured to Support USB Battery ChargingComprehensive USB Battery Charging Support
- Supports USB Battery Charging Specification v1.2 (SDP, CDP, DCP)
- Support for Vendor Specific Charging Modes eg. Apple 2.4A, Samsung, etc.
- Supports YD/T 1591-2009
- Supports Stand-Alone Charging when System is Suspend, Shut Down, or Disconnected
- Any Combination of DFPs can be Configured to Support USB Battery Charging-
Power and Package
- Requires 3.3V and 1.1V Inputs
- 25MHz Xtal
- Integrated Voltage Regulators Generate All Required Voltages from 5V Input
5V to 1.1V Switching DC-DC Regulator
5V to 3.3V LDO Regulato
- QFN 76L green package (9x9x0.85 mm)
- QFN 56L green package (7x7x0.85 mm)
VL817 USB 3.2 Gen1 Hub Key Features & Improvements:
Product Consolidation: Combines VL811+ & VL812/ VL813 into a Single Chip!
• 4-Port Individual Mode for USB Battery Charging Support on All Ports
• Integrated 5V to 1.2V Switching Regulator, 5V to 3.3V Linear Regulator
• Firmware Update over USB
Optimized Design for Improved Functionality, Small size, and Performance
• Integrated (Optional) USB Billboard Device for USB PD Accessory Support
• Modernized Hub Core meets USB 3.2 ECNs and Compliance Testing Updates to date
• Improved Integrated Regulator Protection and Operational Efficiency
• Industry-Leading Low-Power Consumption during USB Suspend
Features Management Interface for USB/Charging Port Enable/Disable, Billboard, etc. Earned USB 3.2 Gen1 USB-IF certification TID# 330000071 Packages: QFN76 9x9mm: Standard Configuration; Replaces VL811+/ VL812/ VL813
QFN56 7x7mm: 2-Port Configuration; Replaces VL811-Q4S