SLVUD44A March   2025  – October 2025

 

  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 General Configurations
      1. 2.1.1 Physical Access
      2. 2.1.2 Test Equipment and Setup
        1. 2.1.2.1 Power supplies
        2. 2.1.2.2 Meters
        3. 2.1.2.3 Oscilloscope
        4. 2.1.2.4 USB-to-GPIO Interface Adapter
        5. 2.1.2.5 Loads
  8. 3Implementation Results
    1. 3.1 Test Setup and Procedures
      1. 3.1.1 Hot Plug
      2. 3.1.2 Start-up With Enable
      3. 3.1.3 Power Up Into Short
      4. 3.1.4 Undervoltage Lockout
      5. 3.1.5 Overvoltage Lockout
      6. 3.1.6 Overcurrent Event
      7. 3.1.7 Output Hot Short
      8. 3.1.8 Thermal Performance of TPS1685EVM
  9. 4Using the TPS1689EVM-GUI
    1. 4.1 Access the TPS1689EVM-GUI
    2. 4.2 Introduction to the TPS1689EVM-GUI
    3. 4.3 Establishing Communication Between the EVM and GUI
    4. 4.4 Quick Info
    5. 4.5 Configuration
    6. 4.6 Telemetry
    7. 4.7 Register Map Page
  10. 5Hardware Design Files
    1. 5.1 Schematic
    2. 5.2 PCB Drawings
    3. 5.3 Bill OfmAterials (BOM)
  11.   Trademarks
  12. 6Revision History

1.1 Introduction

The TPS1689EVM eFuse evaluation board allows reference circuit evaluation of Texas Instruments (TI) TPS1689 eFuse. The TPS1689 device is a 9-V to 80-V, 20-A stackable eFuse with a PMBus interface for accurate digital telemetry, control, configuration, and debugging. This device provides an accurate and fast load current monitor output, which helps in Intel PSYS and PROCHOT implementations. This eFuse supports parallel connection with multiple TPS1685 eFuses for higher current designs by actively synchronizing the device states and sharing the loads during start-up and steady-state. The TPS1689 eFuse has an integrated FET with ultra-low ON resistance of 3.65-mΩ, adjustable and robust overcurrent and short-circuits protections, fast overvoltage protection , adjustable output slew rate control for inrush current protection, and overtemperature protection to verify FET safe operating area (SOA). The TPS1689 eFuse also has an adjustable overcurrent transient blanking timer to support load transients, adjustable undervoltage protection, integrated FET health monitoring, and reporting, analog die temperature monitor output, dedicated fault and power good indication pins.

Note: TPS1689EVM-GUI provides access to the TPS1689 evaluation module GUI.
TPS1689EVM
CAUTION: Do not leave the EVM powered when unattended
WARNING: Signal traces, components, and component leads are located on the bottom of the circuit module. There can be exposed voltages, hot surfaces, or sharp edges as a result. When operating the board, do not reach under.
CAUTION: The communication interface is not isolated on the EVM. Make sure there is no ground potential between the computer and the EVM. Note that the computer is referenced to the ground potential of the EVM.