SLUUCU5 June   2024 TPS544C27

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
      1. 1.1.1 Before You Begin
    2. 1.2 Electrical Performance Specifications
    3. 1.3 Device Information
  8. 2Hardware
    1. 2.1 Test Equipment
      1. 2.1.1 Voltage Source
      2. 2.1.2 Oscilloscope
      3. 2.1.3 Multimeters
      4. 2.1.4 Output Load
      5. 2.1.5 Fan
      6. 2.1.6 USB-to-GPIO Interface Adapter:
      7. 2.1.7 Recommended Wire Gauge
    2. 2.2 List of Test Points, Jumpers, and Connectors
    3. 2.3 Efficiency Measurement Test Points
    4. 2.4 Control Loop Gain and Phase Measurement
    5. 2.5 External 5V bias to enhance efficiency
    6. 2.6 Input Current Measurement
  9. 3Software
    1. 3.1 Opening the PMBus Fusion GUI
    2. 3.2 Monitor Page
    3. 3.3 Status Page
  10. 4Performance Data and Typical Characteristics Curves
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layout
    3. 5.3 BOM
  12. 6Trademarks

2.6 Input Current Measurement

TPS544C27EVM default setting is that input current measurement feature is not used with IN_IN_P and I_IN_M shorted together then shorts to PVIN through J16 shunt on. To test I_IN_P and I_IN_M feature, remove the shunt from J16, connect pin1 of J2 (IIN) to pin2 of J1 (PVIN) with a short 10-AWG wires or better. Apply PVIN + to pin2 of J2 (IIN) and PGND to pin1 of J1. Thus the input current can be measured.