SLVUCH6A July   2023  – November 2023 TPS25984

 

  1.   1
  2.   TPS25984EVM: Evaluation Module for TPS25984 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
      1. 4.2.1 Power Supplies
      2. 4.2.2 Meters
      3. 4.2.3 Oscilloscope
      4. 4.2.4 Loads
  8. 5Test Setup and Procedures
    1. 5.1  Hot Plug
    2. 5.2  Start-Up With Enable
    3. 5.3  Difference Between Current Limit and DVDT Based Start-Up Mechanisms
    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 TPS25984EVM
  9. 6EVAL Board Assembly Drawings and Layout Guidelines
    1. 6.1 PCB Drawings
  10. 7Bill of Materials (BOM)
  11. 8Revision History

3 Schematic

2 illustrates the EVM schematic.

GUID-20221108-SS0I-0Q44-QX7D-ZX84XRPTJCQ5-low.svg Figure 3-1 TPS25984EVM eFuse Evaluation Board Schematic (Page 1)
GUID-20221108-SS0I-DL5P-6CVS-ZHWPD2VHC34Q-low.svg Figure 3-2 TPS25984EVM eFuse Evaluation Board Schematic (Page 2)
Note:
  • To evaluate the performance of one TPS25984 eFuse at lower currents (< 55 A), RZ5, RZ6, RZ7, RZ8, and RZ9 resistors need to be depopulated. Also R11 and R12 resistors must be populated to disable the secondary eFuse.
  • The ground connections for the various components around the TPS25984 eFuses must be wired directly to each other and the GND pins of respective eFuses. This must be followed by connecting them to the system ground at one point, as implemented using RZ1 and RZ4 resistors in the EVM schematic. Do not connect the various component grounds through the high current system ground line.