SNVU843A April   2023  – November 2023

 

  1.   1
  2.   LM5171 Evaluation Module
  3.   Trademarks
  4. 1Features and Electrical Performance
  5. 2Setup
    1. 2.1 EVM Configurations
    2. 2.2 Bench Setup
    3. 2.3 Test Equipment
    4. 2.4 Jumper Settings for Typical Operation Modes
      1. 2.4.1 Buck Mode with Voltage Regulation
      2. 2.4.2 Boost Mode with Voltage Regulation
      3. 2.4.3 Buck Mode with Current Regulation
      4. 2.4.4 Boost Mode with Current Regulation
      5. 2.4.5 2-EVM Daisy-Chain for 3 or 4-Phase Operation
  6. 3Test Procedure
    1. 3.1 Buck Mode Power-Up and Power-Down Sequence
    2. 3.2 Boost Mode Power-Up and Power-Down Sequence
    3. 3.3 Bidirectional Operation Power-Up and Power-Down Sequence
    4. 3.4 Operating the EVM With External MCU or Other Digital Circuit
  7. 4Test Data
    1. 4.1 Efficiency
    2. 4.2 Step Load Response
    3. 4.3 Dual-Channel Interleaving Operation
    4. 4.4 Typical Start Up and Shutdown
    5. 4.5 DEM and FPWM
    6. 4.6 Mode transition between DEM and FPWM
    7. 4.7 ISET Tracking
    8. 4.8 Pre-charge
    9. 4.9 Protections
  8. 5Design Files
    1. 5.1 Schematics
    2. 5.2 Bill of Materials
    3. 5.3 Board Layout
  9. 6Revision History

3.2 Boost Mode Power-Up and Power-Down Sequence

For Boost Mode with Voltage Regulation,

  1. Refer to Boost Mode with Voltage Regulation for proper jumper settings.
  2. Set HV-E-Load to CC mode. Turn on the LV-PS power supply and HV-E-Load.
  3. Perform the test.
  4. After the tests are done, and turn off the LV-PS and HV-E-Load.

For Boost Mode with Current Regulation,

  1. Refer to Buck Mode with Current Regulation for proper jumper settings.
  2. Set HV-E-Load to CV mode. Turn on the LV-PS power supply and HV-E-Load.
  3. Apply an analog voltage gradually rising from 1 V to 2.2 V at J17-pin 11 or J18-pin 11 (ISETA), or a PWM signal at J17-pin 13 or J18-pin 13.
  4. Perform the test.
  5. After the tests are done, set ISETA to 1 V, and turn off the LV-PS and HV-E-Load.