SLVUD44A March   2025  – October 2025 TPS1689

 

  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

Features

TPS1689EVM comes with one TPS16890 eFuse and one TPS16851 eFuse connected in parallel to evaluate a 54V (typical) and 40A (steady-state) design. General TPS1689EVM eFuse evaluation board features include:

  • 40V to 54V (typical) operation
  • 25A and 44A programmable circuit breaker threshold using on-board jumpers
  • Adjustable reference voltage (VIREF) for overcurrent, short-circuit protection, and active current sharing blocks through VIREF (32h) register
  • Adjustable output voltage slew rate control both in hardware and firmware
  • Adjustable transient current blanking timer in firmware through OC_TIMER (14h) register
  • Adjustable active current sharing threshold using on-board jumpers
  • TVS diode for input and Schottky diode for output transient protections
  • LED status for power good and fault indications
  • Options to engage the power cycle and the quick output discharge (QOD) using EN/UVLO pin
  • PMBus interface with the TPS1689EVM-GUI using the USB-TO-GPIO2 USB interface adapter evaluation module
  • Option to interface an external EEPROM with TPS1689 for indefinite configuration of the eFuse and Blackbox fault recording