SLVUD40 November   2024 TPS25984B

 

  1.   1
  2.   TPS25984BEVM: Evaluation Module for TPS25984B 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  Output Hot Short
    9. 5.9  Quick Output Discharge (QOD)
    10. 5.10 Thermal Performance of TPS25984BEVM
  9. 6EVAL Board Assembly Drawings and Layout Guidelines
    1. 6.1 PCB Drawings
  10. 7Bill of Materials (BOM)

2 Description

The TPS25984BEVM enables the evaluation of TPS25984B0 eFuses from TPS25984B family. This EVM has two (2) TPS25984B0 eFuses connected in parallel. The input power is applied across the connectors T1 and T3, while T2 and T3 provide the output connection for the EVM; refer to the schematic in Figure 3-1 and EVM test setup in Figure 5-1. TVS diodes D1 and D2 provide the input protection from transient overvoltages. Schottky diodes D3 and D4 protect the output by clamping the negative voltage excursion at the OUT pins of TPS25984B eFuses within the minimum absolute rating.

SW1 allows to do power cycle and SW2 enables the quick output discharge (QOD). Power Good (PG) and fault (FLTb and FLTb2) indicators are provided by LED DG1, DR1, and DR2 respectively.

Table 2-1 TPS25984BEVM eFuse Evaluation Board Options and Setting
EVM FunctionVIN UVLO ThresholdVIN OVLO ThresholdOutput Slew Rate (dv/dt)IMONILIMILIM2IREF
Performance evaluation of TPS25984B, 4.5V to 16V, 55A (RMS) eFuse5V16.7VSelectable - 1.2V/ms, 1.8V/ms, and 12V/msSelectable - 110A and 75A for VIMON of 1VSelectable - 29A and 20A of inrush current limit and 55A and 38A of steady state current limit threshold with VREF of 1VSelectable - 1V and 0.5V