SNLU346 May   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

2.2.1.1 Self-Powered Configuration

The TUSB2E221EVM 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:

Nom Output Voltage: 5 VDC

Max 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 3-4 to disable bus-power and enable wall power.

Table 2-2 EVM Wall Power Configuration
Designator Installed Description
J1 No VBUS to J5 micro-USB Port A connector
J3 Yes 5V Rail and DC Jack to VBUS
J6 No 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 DC adapter into the DC jack at J2 on the EVM. Using this method to provide power is useful while the TUSB2E221 is configured as either a self-powered device or a host.