SLVUCF1A September   2022  – October 2022 TPSM63610

 

  1.   Abstract
  2.   Trademarks
  3. 1High-Density EVM Description
    1. 1.1 Typical Applications
  4. 2Test Setup and Procedure
    1. 2.1 EVM Connections
    2. 2.2 EVM Setup
    3. 2.3 Test Equipment
    4. 2.4 Recommended Test Setup
      1. 2.4.1 Input Connections
      2. 2.4.2 Output Connections
    5. 2.5 Test Procedure
      1. 2.5.1 Line, Load Regulation and Efficiency
  5. 3Test Data and Performance Curves
    1. 3.1 Efficiency and Load Regulation Performance
    2. 3.2 Waveforms
    3. 3.3 Bode Plot
    4. 3.4 EMI Performance
  6. 4EVM Documentation
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
    3. 4.3 PCB Layout
    4. 4.4 Multi-Layer Stackup
  7. 5Device and Documentation Support
    1. 5.1 Device Support
      1. 5.1.1 Development Support
        1. 5.1.1.1 Custom Design With WEBENCH® Tools
    2. 5.2 Documentation Support
      1. 5.2.1 Related Documentation
  8. 6Revision History

2.5.1 Line, Load Regulation and Efficiency

  • Set up the EVM as described in Test Setup and Procedure.
  • Set load to constant resistance or constant current mode to sink 0 A.
  • Increase the input source voltage from 0 V to 24 V; use voltmeter 1 to measure the input voltage.
  • Increase the current limit of the input supply to 8 A.
  • Use voltmeter 2 to measure the output voltage, VOUT, and vary the load current from 0 A to 8 A DC; VOUT must remain within the load regulation specification.
  • Set the load current to 4 A (50% rated load) and vary the input source voltage from 6 V to 36 V; VOUT must remain within the line regulation specification.
  • Set the load current to 8 A (100% rated load) and measure the efficiency at typical input voltages (12 V, 24 V, and 36 V).
  • Decrease the load to 0 A. Decrease the input source voltage to 0 V.
CAUTION:

Extended operation at high output current can raise component temperatures above 55°C. To avoid risk of a burn injury, do not touch the components until they have cooled sufficiently after disconnecting power.