Device Information - Texas Instruments TUSB2E221EVM User Manual

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When the eUSB ports are connected to an eUSB device, as shown
configured as a peripheral repeater. In a self-powered configuration, an external 5V source is provided.
Figure 1-3. TUSB2E221EVM Bus-powered Peripheral Repeater Diagram
A 5V power source can also be provided by the USB bus. When VBUS is used to power the EVM,
VBUS is referred to a bus-powered application. An eUSB device is still attached to the eUSB port of the
TUSB2E221EVM, so the EVM must be configured as a peripheral repeater.

1.4 Device Information

The TUSB2E221EVM is designed to support the TUSB2E221 eUSB repeater in either eUSB host or peripheral
applications. Various headers are located on the EVM with prepopulated headers to support configuring the
TUSB2E221.
Two LDOs are also present on the TUSB2E221EVM to generate the 3.3V and 1.8V supplies to the TUSB2E221.
The TPS73633 steps down the 5V supply to 3.3V to provide power to the TUSB2E221 as well as the TPS73601.
The TPS73601 uses the 3.3V supply and steps down the voltage further to 1.8V again for the TUSB2E221
supply and the I/O input voltage used for configuration.
SNLU346 – MAY 2024
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Evaluation Module Overview
Figure 1-2, the TUSB2E221 must be
TUSB2E221 Evaluation Module 3