SLVU392A July   2010  – January 2022 TPS53125

 

  1.   Trademarks
  2. 1Description
    1. 1.1 Applications
    2. 1.2 Features
  3. 2TPS53125EVM-599 Electrical Performance Specifications
  4. 3TPS53125EVM-599 Schematic
  5. 4Connector and Test Point Descriptions
    1. 4.1 Enable Jumpers/Switches – SW1 and SW2
    2. 4.2 Test Point Descriptions
      1. 4.2.1 Input Voltage Monitoring – TPS and TP9
      2. 4.2.2 Channel 1 Output Voltage Monitoring – TP4 and TP8 or CN1
      3. 4.2.3 Channel 2 Output Voltage Monitoring – TP6 and TP7 or CN2
      4. 4.2.4 Soft-Start Voltage Monitoring – TP1, TP2, and TP3
      5. 4.2.5 Switching Node Monitoring – TP3, TP5, and TP11
      6. 4.2.6 5-V Regulator Output Monitoring – TP3 and TP10
  6. 5Test Setup
    1. 5.1 Equipment
      1. 5.1.1 Voltage Source
      2. 5.1.2 Meters
      3. 5.1.3 Loads
      4. 5.1.4 Oscilloscope and Probe
      5. 5.1.5 Recommended Wire Gauge
      6. 5.1.6 Other Test Equipment
    2. 5.2 Equipment Setup
      1. 5.2.1 Test Procedure
      2. 5.2.2 Test Setup Diagram
    3. 5.3 Start-Up/Shutdown Procedures
    4. 5.4 Output Ripple Voltage Measurement Procedure
    5. 5.5 Equipment Shutdown
  7. 6TPS53125EVM-599 Test Data
    1. 6.1 Efficiency
    2. 6.2 Line and Load Regulation
    3. 6.3 Output Voltage Ripple and Switching Node Waveforms
    4. 6.4 Switch Node
  8. 7TPS53125EVM-599 Assembly Drawings and Layout
  9. 8TPS53125EVM-599 Bill of Materials
  10. 9Revision History

5.3 Start-Up/Shutdown Procedures

Perform the start-up and shutdown procedures in the following manner.

  1. Increase VIN from 0 V to 12 VDC.
  2. Vary LOAD1 from 0 A–4 ADC.
  3. Vary LOAD2 from 0 A–4 ADC.
  4. Vary VIN from 8 VDC to 22 VDC.
  5. Decrease VIN to 0 VDC.
  6. Decrease LOAD1 to 0 A.
  7. Decrease LOAD2 to 0 A.