SNLU354 November   2024 TUSB2E221

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Getting Started
    2. 2.2 EVM Configuration
      1. 2.2.1 Power Modes
        1. 2.2.1.1 Self-Powered Configuration
        2. 2.2.1.2 Bus-Powered Configuration
        3. 2.2.1.3 External Power
      2. 2.2.2 Functional Modes
        1. 2.2.2.1 I2C-Enabled Repeater Mode
        2. 2.2.2.2 GPIO Repeater Mode
        3. 2.2.2.3 UART Mode
      3. 2.2.3 I/O and Interrupts
  8. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 Board Layout
    3. 3.3 Bill of Materials
  9. 4Additional Information
    1. 4.1 Trademarks
    2. 4.2 Related Documentation

2.2.1.1 Self-Powered Configuration

The TUSB2E221QFNEVM 5V power supply can be provided from a DC power supply provided by CUI, Digikey# 102-3584-N, or similar.

External Power Supply or Power Accessory Requirements:

  • Nominal output voltage: 5 VDC
  • Maximum output current: 3000mA
  • Efficiency Level CoC Tier 2

Before providing power to the EVM, make sure that 5V is not already being provided to the EVM through the USB bus. Configure the EVM jumpers as shown in Table 2-4 to disable bus-power and enable wall power.

Table 2-2 EVM Wall Power Configuration
Designator Installed Description
J3

Yes

 VBUS to J4 USB Port A connector
J2 Yes 5V Rail and DC Jack to VBUS
J10

Yes

 VBUS to J4 USB Port B connector
J14 Yes 3.3V LDO to 3.3V
J15 Yes 3.3V supply rail to 1.8V input
J16 Yes 1.8V LDO output to 1.8V supply rail
J17 Yes 1.8V supply rail to 1.8V IO

After configuring the EVM, plug the DC adapter into the DC jack at J1 on the EVM. This method of providing power is useful while the TUSB2E221 is configured as either a self-powered device or a host.