SNLU346 May 2024 TUSB2E221
When VBUS is provided through the micro-USB connector, the TUSB2E221EVM does not require an external 5V supply. Make sure that 5V is not already being provided to the EVM through other sources by configuring the EVM headers as shown in Table 3-4.
Designator | Installed | Description |
---|---|---|
J1 | Yes | VBUS to J5 micro-USB Port A connector |
J3 | No | 5V Rail and DC Jack to VBUS |
J6 | Yes | VBUS to J10 micro-USB Port B connector |
J14 | Yes | 5V input to 3.3V LDO |
J15 | Yes | 1.8V supply rail to 1.8V IO rail |
J16 | Yes | 1.8V LDO output to 1.8V supply rail |
J17 | Yes | 3.3V supply rail to 1.8V LDO |
After configuring the EVM, plug the USB host into either the J1 or J6 micro-USB connector. Using this method to provide power is useful while the TUSB2E221 is configured as a bus-powered device.