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

3.4 Operating the EVM With External MCU or Other Digital Circuit

  1. Onboard analog voltage loop control circuit must be disconnected.
  2. Use J17 header to interface the external MCU or other control circuit.
  3. Follow the power-up and power-down sequence for buck mode or boost mode operation.

Signals required from an MCU or other digital control circuit include UVLO, EN1/EN2, DIR, ISETA or ISETD. Contact TI for info on operating the EVM with the MSPM0 Launchpad or C2000 MCU.