TUSB8020B-Q1
- Two Port USB 3.0 Compliant Hub
- USB 2.0 Hub Features
- Multi Transaction Translator (MTT) Hub:
Two Transaction Translators - Four Asynchronous Endpoint Buffers Per
Transaction Translator
- Multi Transaction Translator (MTT) Hub:
- Supports USB Battery Charging Specification
Revision 1.2- CDP Mode (Upstream Port Connected)
- DCP Mode (Upstream Port Unconnected)
- DCP Mode Complies with Chinese Telecommunications
Industry Standard YD/T 1591-2009
- Support D+/D- Divider Mode.
- Supports Operation as a USB 3.0 or USB 2.0
Compound Device - Per Port or Ganged Power Switching and Over-Current
Notification Inputs - OTP ROM, Serial EEPROM or I2C/SMBus
Slave Interface for Custom Configurations:- VID and PID
- Port Customizations
- Manufacturer and Product Strings (not
by OTP ROM) - Serial Number (not by OTP ROM)
- Application Feature Selection Using Terminal
Selection or EEPROM/ or I2C/SMBus
Slave Interface - Provides 128-Bit Universally Unique Identifier
(UUID) - Supports On-Board and In-System OTP/EEPROM
Programming Via the USB 2.0 Upstream Port - Single Clock Input, 24-MHz Crystal or Oscillator
- No special driver requirements; works seamlessly
on any operating system with USB stack support
The TUSB8020B-Q1 is a two-port USB 3.0 compliant hub. It provides simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port and provides SuperSpeed USB, high-speed, full-speed, or low-speed connections on the downstream ports. When the upstream port is connected to an electrical environment that only supports high-speed or full-speed/low-speed connections, SuperSpeed USB connectivity is disabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full-speed/low-speed connections, SuperSpeed USB and high-speed connectivity are disabled on the downstream ports.
The TUSB8020B-Q1 supports per port or ganged power switching and over-current protection, and supports battery charging applications.
An individually port power controlled hub switches power on or off to each downstream port as requested by the USB host. Also when an individually port power controlled hub senses an over-current event, only power to the affected downstream port will be switched off.
A ganged hub switches on power to all its downstream ports when power is required to be on for any port. The power to the downstream ports is not switched off unless all ports are in a state that allows power to be removed. Also when a ganged hub senses an over-current event, power to all downstream ports will be switched off.
The TUSB8020B-Q1 downstream ports provide support for battery charging applications by providing USB Battery Charging 1.2 Charging Downstream Port (CDP) handshaking support. It also supports a Dedicated Charging Port (DCP) mode when the upstream port is not connected. The DCP mode supports the USB Battery Charging Specification and the Chinese Telecommunications Industry Standard YD/T 1591-2009. In addition, an automatic mode provides transparent support for BC 1.2 compliant devices and devices supporting Divider Mode charging solutions when the upstream port unconnected.
The TUSB8020B-Q1 provides terminal strap configuration for some features including battery charging support, and also provides customization though OTP ROM, I2C EEPROM or via an I2C/SMBus slave interface for PID, VID, and custom port and phy configurations. Custom string support is also available when using an I2C EEPROM or the I2C/SMBus slave interface.
The device is available in a 48-terminal HTQFP package and is designed for operation over the industrial temperature range of –40°C to 85°C.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TUSB8020B-Q1 Automotive Two-Port USB 3.0 Hub 数据表 | PDF | HTML | 2014-3-21 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
TUSB8020BEVM — TUSB8020BEVM：汽车类双端口 USB 3.0 集线器评估模块
TI TUSB8020BEVM 是面向单一器件的功能电路板设计，适用于 USB 3.0 集线器和 USB 2.0 集线器。此 EVM 可以在其 USB 端口上支持 SuperSpeed (SS) 和 USB 2.0（HS、FS 和 LS）运行。此 EVM 旨在用于评估系统兼容性、开发可选的 EEPROM 固件和验证互操作性。此 EVM 还可用作实现 TUSB8020B 的硬件参考设计。
PMP31344 — 具有 DisplayPort™ ALT 模式的汽车级 12V 输入、140W 双端口 USB 供电参考设计
此参考设计是一款汽车级 USB 扩展功率范围 (EPR) 系统，可为两个 USB Type-C® 端口同时提供电力供应与数字通信。连接 USB-C 电缆时，TPS26744E-Q1 会与插入式器件协商目标输出电压和最大电流。然后，该控制器会启用并正确驱动处理功率传输的降压/升压控制器 (LM251772)。
在通信方面，TPS26744E-Q1 可以与已连接的 USB 器件（例如手机或笔记本电脑）协商以选择 USB-DP 模式。随后通过 USB 多路复用器 (MUX)(TUSB564-Q1)、DP MUX (TS3DV642) 和平板显示器 (FPD) 链接串行器启用显示投屏功能。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HTQFP (PHP) | 48 | Ultra Librarian |
订购和质量
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