SLUU535A September   2011  – January 2022 TPS40400

 

  1. 1 Introduction
  2. 2 Description
    1. 2.1 Typical Applications
    2. 2.2 Features
  3. 3 Electrical Performance Specifications
  4. 4 Schematic
  5. 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
      1. 5.2.1 Voltage Source
      2. 5.2.2 Multimeters
      3. 5.2.3 Output Load
      4. 5.2.4 Oscilloscope
      5. 5.2.5 Fan
      6. 5.2.6 Recommended Wire Gauge
    3. 5.3 Recommended Test Setup
    4. 5.4 USB Interface Adapter and Cable
      1. 5.4.1 Input Connections
      2. 5.4.2 Output Connections
      3. 5.4.3 Jumper Connections, JP1 and JP2
      4. 5.4.4 Jumper Configurations
  6. 6 EVM Configuration Using the Fusion GUI
    1. 6.1 Configuration Procedure
    2. 6.2 Fusion GUI Screenshots
  7. 7 Test Procedure
    1. 7.1 Line/Load Regulation and Efficiency Measurement Procedure
    2. 7.2 Control Loop Gain and Phase Measurement Procedure
    3. 7.3 List of Test Points
    4. 7.4 Equipment Shutdown
  8. 8 Performance Data and Typical Characteristic Curves
    1. 8.1  Efficiency
    2. 8.2  Load Regulation
    3. 8.3  Load Transients 1
    4. 8.4  Load Transient 2
    5. 8.5  Load Transient 3
    6. 8.6  Input and Output Ripple
    7. 8.7  Switch Node and HDRV
    8. 8.8  VIN Turn On
    9. 8.9  Enable ON / OFF
    10. 8.10 Turn ON with 92% (1.1V) Pre-bias
    11. 8.11 TPS40400EVM-351 Bode Plot (20-A output)
  9. 9 EVM Assembly Drawing and PCB Layout
  10. 10List of Materials
  11. 11Revision History

5.1.1 Description

Fusion Digital Power Designer is the Graphical User Interface (GUI) used to configure and monitor the Texas Instrument's TPS40400 power controller on this Evaluation Module (EVM). The application uses the PMBus protocol to communicate with the controller over serial bus by way of a TI USB adapter (see Figure 5-3).