SLVU719B May   2012  – November 2021 TPS53819A

 

  1.   Trademarks
  2. 1 Description
    1. 1.1 Typical Applications
    2. 1.2 Features
  3. 2 Electrical Performance Specifications
  4. 3 Schematic
  5. 4 Test Setup
    1. 4.1 Test and Configuration Software
      1. 4.1.1 Description
      2. 4.1.2 Features
    2. 4.2 Test Equipment
    3. 4.3 Recommended Test Setup
      1. 4.3.1 Input Connections
      2. 4.3.2 Output Connections
      3. 4.3.3 Other Connections
    4. 4.4 List of Test Points
    5. 4.5 Jumper Configuration: Enable Selection
  6. 5 EVM Configuration Using the Fusion GUI
    1. 5.1 Configuration Procedure
    2. 5.2 Default Fusion GUI Screenshots and Description
  7. 6 Test Procedure
    1. 6.1 Line and Load Regulation and Efficiency Measurement Procedure
    2. 6.2 Control Loop Gain and Phase Measurement Procedure
    3. 6.3 Equipment Shutdown
  8. 7 Performance Data and Typical Characteristic Curves
    1. 7.1  Efficiency
    2. 7.2  Load Regulation
    3. 7.3  Line Regulation
    4. 7.4  fSW Versus Load
    5. 7.5  Bode Plot
    6. 7.6  Transient Response
    7. 7.7  Output Ripple
    8. 7.8  Switching Node
    9. 7.9  Turn-On Waveform
    10. 7.10 Turn-Off Waveform
    11. 7.11 Pre-bias Turn-On Waveform
    12. 7.12 Thermal Images
  9. 8 EVM Assembly Drawing and PCB layout
  10. 9 Bill of Materials
  11. 10Revision History

6.1 Line and Load Regulation and Efficiency Measurement Procedure

  1. Set up the EVM as described in Section 4 and Figure 4-3.
  2. Ensure the load is set to constant resistance mode and to sink 0 ADC.
  3. Ensure the jumper provided in the EVM shorts on J2 before VIN is applied.
  4. Increase VIN from 0 V to 12 V, using V1 to measure input voltage.
  5. Remove the jumper on J3 to enable the controller.
  6. Use V2 to measure VOUT voltage.
  7. Vary Load from 0 ADC to 25 ADC. VOUT should remain in load regulation.
  8. Vary VIN from 8 V to 14 V. VOUT should remain in line regulation.
  9. Put the jumper on J3 to disable the controller.
  10. Decrease the load to 0 A.
  11. Decrease VIN to 0 V.