SLUUB60B May   2015  – August 2021 TPS544B25 , TPS544C25

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Description
    1. 2.1 Typical End-User Applications
    2. 2.2 EVM Features
  4. 3 EVM Electrical Performance Specifications
  5. 4 Schematic
  6. 5 Test Setup
    1. 5.1 Test and Configuration Software
      1. 5.1.1 Description
      2. 5.1.2 Features
    2. 5.2 Test Equipment
    3. 5.3 The PWR-681EVM
    4. 5.4 List of Test Points, Jumpers ans Switch
  7. 6 EVM Configuration Using the Fusion GUI
    1. 6.1 Configuration Procedure
  8. 7 Test Procedure
    1. 7.1 Line/Load Regulation Measurement Procedure
    2. 7.2 Efficiency
    3. 7.3 Bode Plot Measurement Procedure
    4. 7.4 Equipment Shutdown
  9. 8 Performance Data and Typical Characteristic Curves
    1. 8.1  Efficiency
    2. 8.2  Load Regulation
    3. 8.3  Line Regulation
    4. 8.4  Transient Response
    5. 8.5  Output Ripple
    6. 8.6  Control On
    7. 8.7  Control Off
    8. 8.8  Overcurrent Protection
    9. 8.9  Control Loop Bode Plot
    10. 8.10 Thermal Image
  10. 9 Fusion GUI
  11. 10EVM Assembly Drawing and PCB Layout
  12. 11List of Materials
  13. 12Revision History

7.1 Line/Load Regulation Measurement Procedure

  1. Ensure that the electronic load is set to draw 0 ADC.
  2. Increase VIN from 0 V to 12 V using the digital multimeter to measure input voltage.
  3. Use the other digital multimeter to measure output voltage VOUT at TP4 and TP5.
    Table 7-1 List of Test Points for Line/Load Measurements
    TEST POINTNODE NAMEDESCRIPTION
    JP1VINMeasurement point for VIN +VE (remove the jumper, LED will not light)
    TP10GNDMeasurement point for VIN –VE
    TP4V_sense +Measurement point for VOUT +VE
    TP5V_sense -Measurement point for VOUT –VE
  4. Vary the load from 0 ADC to maximum rated output ADC (TPS544B25 = 20 A, TPS544C25 = 30 A) . VOUT must remain in regulation as defined in Table 3-1.
  5. Vary VIN from 4.5 V to 18 V. VOUT must remain in regulation as defined in Table 3-1.
  6. Decrease the load to 0 A.
  7. Decrease VIN to 0 V or turn off the supply.