SLVUCH7A september   2022  – june 2023 TPS25990

 

  1.   1
  2.   TPS25990EVM: Evaluation Module for TPS25990 eFuse
  3.   Trademarks
  4. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 EVM Applications
  5. 2Description
  6. 3Schematic
  7. 4General Configurations
    1. 4.1 Physical Access
    2. 4.2 Test Equipment and Setup
      1. 4.2.1 Power supplies
      2. 4.2.2 Meters
      3. 4.2.3 Oscilloscope
      4. 4.2.4 USB-to-GPIO Interface Adapter
      5. 4.2.5 Loads
  8. 5Test Setup and Procedures
    1. 5.1  Hot Plug
    2. 5.2  Start-up with Enable
    3. 5.3  Current Limit Based Start-up Behavior
    4. 5.4  Power Up into Short
    5. 5.5  Overvoltage Lockout
    6. 5.6  Transient Overload Performance
    7. 5.7  Overcurrent Event
    8. 5.8  Provision to Apply Load Transient and Overcurrent Event Using an Onboard Switching Circuit
    9. 5.9  Output Hot Short
    10. 5.10 Quick Output Discharge (QOD)
    11. 5.11 Thermal Performance of TPS25990EVM
  9. 6Using the TPS25990EVM-GUI
    1. 6.1 Access the TPS25990EVM-GUI
    2. 6.2 Introduction to the TPS25990EVM-GUI
    3. 6.3 Establishing Communication Between the EVM and GUI
    4. 6.4 Quick Info
    5. 6.5 Configuration
    6. 6.6 Telemetry
    7. 6.7 Blackbox
    8. 6.8 Register Map Page
  10. 7EVAL Board Assembly Drawings and Layout Guidelines
    1. 7.1 PCB Drawings
  11. 8Bill Of Materials (BOM)
  12. 9Revision History

1 Introduction

The TPS25990EVM eFuse evaluation board allows reference circuit evaluation of Texas Instruments (TI) TPS25990 eFuse. The TPS25990 device is a 2.9-V to 16-V, 50-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 TPS25985 eFuses for higher current designs by actively synchronizing the device states and sharing the loads during start-up and steady-state. The TPS25990 eFuse has an integrated FET with ultra-low ON resistance of 0.8-mΩ, adjustable and robust overcurrent and short-circuits protections, fast overvoltage protection (fixed 16.7-V threshold in hardware and adjustable through PMBus), adjustable output slew rate control for inrush current protection, and overtemperature protection to verify FET safe operating area (SOA). The TPS25990 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, and uncommitted general purpose fast comparator.

Note: TPS25990EVM-GUI provides access to the TPS25990 evaluation module GUI.