SLVUBV0A March   2020  – September 2020 TPS55288

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Performance Specification
    2. 1.2 Modification
      1. 1.2.1 Modification
  3. 2Connector, Test Point, and Jumper Descriptions
    1. 2.1 Connector and Test Point Descriptions
    2. 2.2 Jumper Configuration
      1. 2.2.1 JP1 (ENABLE)
      2. 2.2.2 JP2 and JP3 (External Feedback and Internal Feedback Selection)
      3. 2.2.3 JP4 (SYNC)
  4. 3Test Procedure
  5. 4Software User Interface
    1. 4.1 Install USB2ANY Explorer
    2. 4.2 GUI Installation
    3. 4.3 Interface Hardware Setup
    4. 4.4 User Interface Operation
    5. 4.5 Register Map Screen
  6. 5Schematic, Bill of Materials, and Board Layout
    1. 5.1 Schematic
    2. 5.2 Bill of Materials
    3. 5.3 Board Layout
  7.   Revision History

3 Test Procedure

Step 1: Set the power supply current limit to 10 A. Set the power supply to something around 12V. Turn off the power supply. Connect the positive output of the power supply to J1 and the negative output to J2.

Step 2: Connect the load to J3 for the positive connection and J4 for the negative connection.

Step 3: Turn on the power supply.

Step 4: Enable the IC with GUI. The default output voltage is 5 V.

Step 5: Set the output voltage to the target value on the GUI user interface page.

Step 6: Slowly increase the load while monitoring the output voltage between J3 and J4. It must remain in regulation when the load current is lower than 3 A.

Step 7: Slowly sweep the input voltage from 5 V to 20 V. The output voltage must remain in regulation when the load current is lower than the maximum load current specified in Table 2-1.

Step 8: Turn off the load, turn off the power supply. Then turn on the load to discharge the output capacitors.