TUSB4020BI-Q1中文资料汽车类两端口高速 480Mbps USB 2.0 集线器数据手册TI规格书

描述 Description

The TUSB4020BI-Q1 is a two-port USB 2.0 hub. It provides USB high-speed/full-speed connections on the upstream port and provides high-speed, full-speed, or low-speed connections on the two downstream ports. When the upstream port is connected to an electrical environment that supports high-speed and full-speed/low-speed connections, high-speed and full-speed/low-speed USB connectivity is enabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full-speed/low-speed connections, high-speed connectivity are disabled on the downstream ports.

The TUSB4020BI-Q1 supports per port or ganged power switching and overcurrent protection.

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 overcurrent event, power to all downstream ports will be switched off.

特性 Features

• AEQ-Q100 Qualified for Automotive Applications
• Two-Port USB 2.0 Hub
• Multi-Transaction Translator (MTT) Hub: Two Transaction Translators
• Type C Compatible
• CDP Mode (Upstream Port Connected)
• DCP Mode Complies With Chinese Telecommunications Industry Standard YD/T 1591-2009
• Per Port or Ganged Power Switching and Overcurrent Notification Inputs
• VID and PID
• Manufacturer and Product Strings (Not by OTP ROM)
• Application Feature Selection Using Terminal Selection or EEPROM/ or I2C/SMBus Slave Interface
• Supports On-Board and In-System OTP/EEPROM Programming Through the USB 2.0 Upstream Port
• No Special Driver Requirements; Works Seamlessly on any Operating System With USB Stack Support
• 48-Pin HTQFP Package (PHP)