SLVUDS2 June   2026

 

  1.   1
  2.    Description
  3.   Get Started
  4.    Features
  5.    Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Overview
    2. 2.2 TPS7B780x-Q1
      1. 2.2.1 TPS7B780x-Q1 Jumpers
      2. 2.2.2 TPS7B780x-Q1 Interfaces
    3. 2.3 Pullup Regulator
      1. 2.3.1 Pullup Regulator Jumpers
    4. 2.4 USB-to-I2C Adapter
      1. 2.4.1 USB-to-I2C Adapter Jumpers
      2. 2.4.2 USB-to-I2C Adapter Interfaces
      3. 2.4.3 USB-to-I2C Adapter LEDs
      4. 2.4.4 USB-to-I2C Adapter BSL Pushbutton
    5. 2.5 Load Transient Circuit
      1. 2.5.1 Using the Load Transient Circuit
      2. 2.5.2 Load Transient Circuit Interfaces
    6. 2.6 EVM Setup
    7. 2.7 Test Points
    8. 2.8 Required Equipment for Basic Evaluation
  9. 3Software
    1. 3.1 Software Download
      1. 3.1.1 Live Software on dev.ti.com
      2. 3.1.2 Offline Software
        1. 3.1.2.1 Download From dev.ti.com
    2. 3.2 Home Tab
    3. 3.3 Quick Setup Tab
    4. 3.4 Monitor Tab - Dashboard Page
    5. 3.5 Monitor Tab - Configure Page
    6. 3.6 ADC Graph Tab
    7. 3.7 Registers Tab
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks

2.4.3 USB-to-I2C Adapter LEDs

Four status LEDs are present on the EVM. All four require USB power to be connected to function.

  • D4 (nERR): This red LED illuminates if the active-low error output from the TPS7B780x-Q1 is pulled low, indicating a fault condition
  • D5 (RDY): This green LED illuminates when the TPS7B780x-Q1 has powered up and is ready to communicate over I2C
  • D1 (USB Power): This green LED illuminates when the USB interface is connected and receiving 5V power
  • D2 (USB Error): This red LED indicates the status of the onboard USB interface as described in Table 2-3

Table 2-3 USB Error LED Mode of Operation
USB Error (D2) Status MSP430F5528 Mode of Operation
Off EVM is connected to the EVM GUI
Solid EVM is plugged into PC but is not ready for communication
4 rapid blinks EVM has just been plugged in and is initializing
Blinking in bursts of 4 blinks EVM is plugged into PC, not connected to EVM GUI
Steady blinking Connected to USB power