SLVUCW7A September   2024  – April 2025 TPS1685

 

  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 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  Transient Overload Performance
      7. 3.1.7  Overcurrent Event
      8. 3.1.8  Output Hot Short
      9. 3.1.9  Quick Output Discharge (QOD)
      10. 3.1.10 Thermal Performance of TPS1685EVM
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Drawings
    3. 4.3 Bill of Materials (BOM)
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6Revision History

1.4 Device Information

The TPS1685EVM enables the evaluation of TPS16850x and TPS16851x eFuses from TPS1685 family. 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 4-1 and EVM test setup in Figure 3-1. 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 TPS1685 eFuses within the maximum absolute rating.

SW1 allows to do the input power cycle and SW2 enables the quick output discharge (QOD). Power Good (PG) and fault (FLTb1 and amp; FLTb2) indicators are provided by LED DG1, DR1, and DR2 respectively.

Table 1-3 TPS1685EVM eFuse Evaluation Board Options and Setting
EVM FunctionVin UVLO ThresholdVin OVLO Threshold

ITIMER

Output Slew Rate (dv/dt)

IMON

ILIM

ILIM2

VREF

Performance evaluation of TPS1685, 9V to 80V, 20A eFuse

40V

60V

Selectable - 3ms and 17ms

Selectable - 1V/ms, 0.5V/ms, and 0.1V/ms

Selectable - 25A, and 44A with VREF of 1VSelectable - 25A and 22A of active current sharing threshold with VREF of 1VSelectable - 25A and 22A of active current sharing threshold with VREF of 1VSelectable - 1V and 0.8V