SLUUCQ1 March   2023 TPS546D24S

 

  1.   Stacking TPS546D24S Two-Phase Evaluation Module
  2.   Trademarks
  3. 1 Description
    1. 1.1 Before You Begin
    2. 1.2 Typical Applications
    3. 1.3 Features
  4. 2 Electrical Performance Specifications
  5. 3 Schematic
  6. 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
      1. 4.2.1 Voltage Source
      2. 4.2.2 Multimeters
      3. 4.2.3 Output Load:
      4. 4.2.4 Oscilloscope
      5. 4.2.5 Fan:
      6. 4.2.6 USB-to-GPIO Interface Adapter:
      7. 4.2.7 Recommended Wire Gauge
    3. 4.3 Tip and Barrel Measurement
    4. 4.4 List of Test Points, Jumpers, and Connectors
    5. 4.5 Evaluating Single Phase Operation
    6. 4.6 Evaluating Split Rail Input
    7. 4.7 Configuring EVM to Overdrive VDD5
  7. 5 EVM Configuration Using the Fusion GUI
    1. 5.1 Configuration Procedure
  8. 6 Test Procedure
    1. 6.1 Line and Load Regulation and Efficiency Measurement Procedure
    2. 6.2 Efficiency Measurement Test Points
    3. 6.3 Control Loop Gain and Phase Measurement Procedure
  9. 7 Performance Data and Typical Characteristic Curves
    1. 7.1  Efficiency
    2. 7.2  Load and Line Regulation (Measured Between TP22 and TP25)
    3. 7.3  Transient Response
    4. 7.4  Control Loop Bode Plot
    5. 7.5  Output Ripple
    6. 7.6  Power MOSFET Drain-Source Voltage
    7. 7.7  Control On
    8. 7.8  Control Off
    9. 7.9  Control On With Pre-biased Output
    10. 7.10 Current Sharing Between Two Phases
    11. 7.11 Thermal Image
  10. 8 EVM Assembly Drawing and PCB Layout
  11. 9 Bill of Materials
  12. 10Using the Fusion GUI
    1. 10.1  Opening the Fusion GUI
    2. 10.2  General Settings
    3. 10.3  Changing ON_OFF_CONFIG
    4. 10.4  Pop-up for Some Commands While Conversion is Enabled
    5. 10.5  SMBALERT# Mask
    6. 10.6  Device Info
    7. 10.7  Phase Commands
    8. 10.8  All Config
    9. 10.9  Pin Strapping
    10. 10.10 Monitor
    11. 10.11 Status

1 Description

The TPS546D24SEVM-2PH is a two-phase buck design using two stacked TPS546D24S devices. The TPS546D24SEVM-2PH is designed for a nominal 12-V bus and to produce a regulated 0.8-V output at up to 80 A of load current. The TPS546D24SEVM-2PH is designed to demonstrate stacking operation of the TPS546D24S in a two-phase, low-output voltage application while providing a number of test points to evaluate the performance of the devices. The TPS546D24SEVM-2PH can be modified to single-phase buck converters by changing the components assembled. See Tip and Barrel Measurement for more information on single-phase configuration.