TUSB8044AI datasheet(47/63 Pages) TI1

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TUSB8044A

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SLLSF92 – FEBRUARY 2019

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9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

9.1 Application Information

The TUSB8044A is a four-port USB 3.2 x1 Gen1 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 port. The TUSB8044A can be used in any application that needs

additional USB compliant ports. For example, a specific notebook may only have two downstream USB ports. By

using the TUSB8044A, the notebook can increase the downstream port count to five.

9.2 Typical Application

9.2.1 Discrete USB Hub Product

A common application for the TUSB8044A is as a self powered standalone USB Type-C docking product. The

product is powered by an external 5V DC Power adapter. In this application, using a USB Type-C captive cable

the TUSB8044A upstream port is plugged into a USB Host controller. The downstream ports of the TUSB8044A

are exposed to users for connecting USB hard drives, cameras, flash drives, and so forth. There is also a

DisplayPort receptacle for connected an external DisplayPort monitor.

Figure 36. Discrete USB Hub Product

TUSB8044AI 数据表(PDF) 47 Page - Texas Instruments