SNVU783A October   2021  – February 2024 LM5158

 

  1.   1
  2.   LM5158EVM-BST Evaluation Module
  3.   Trademarks
  4. 1Features and Electrical Performance
    1. 1.1 Electrical Parameters
    2. 1.2 Configuration Points
  5. 2Application Schematic
  6. 3EVM Picture
  7. 4Test Setup and Procedure
    1. 4.1 Test Setup
    2. 4.2 Test Equipment
  8. 5Test Results
    1. 5.1 Efficiency Curve
    2. 5.2 Load Regulation Curve
    3. 5.3 Thermal Performance
    4. 5.4 Steady State Waveforms
    5. 5.5 Start-Up Waveforms
    6. 5.6 Load Transient Waveforms
    7. 5.7 AC Loop Response Curves
  9. 6Design Files
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
  10. 7Revision History

4.2 Test Equipment

  • Power Supply: The input voltage source (VIN) must be a variable supply capable of 0V to 10V and source at least 10A.
  • Multi-meters:
    • Voltmeter 1: Input voltage. Connect from VIN+ to VIN–.
    • Voltmeter 2: Output voltage. Connect from VOUT+ to GND.
    • Ammeter 1: Input current. Must be able to handle 10A. Shunt resistor can be used as needed.
    • Ammeter 2: Output current. Must be able to handle 2A. Shunt resistor can be used as needed.
  • Electronic Load: The load is constant resistance (CR) or constant current (CC) capable and safely handles 2A at 12V.
  • Oscilloscope: 20MHz bandwidth and AC coupling. Measure the output voltage ripple directly across an output capacitor with a short ground lead. TI does not recommend to use a long-leaded ground connection due to the possibility of noise being coupled into the signal. To measure other waveforms, adjust the oscilloscope as needed.