SNVU543A November   2016  – December 2016 LM5170 , LM5170-Q1

 

  1.   LM5170-Q1 EVM User Guide
    1.     Trademarks
    2. 1 Features and Electrical Performance
    3. 2 Setup
      1. 2.1 EVM Configurations
      2. 2.2 Bench Setup
      3. 2.3 Test Equipment
    4. 3 Test 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 the Onboard Analog Loop Control Circuit
      5. 3.5 Operating the EVM With External MCU or Other Digital Circuit
    5. 4 Test Data
      1. 4.1  Efficiency
      2. 4.2  Current Regulation and Monitoring
      3. 4.3  Typical Master Enable Power Up and Shutdown
      4. 4.4  Channel Enable and Disable
      5. 4.5  Dual-Channel Interleaving Operation
      6. 4.6  ISETA Tracking
      7. 4.7  Diode Emulation Preventing Negative Currents
      8. 4.8  Dynamic DIR Change
      9. 4.9  Step Load Response
      10. 4.10 OVP
      11. 4.11 Output Short Circuit
    6. 5 Design Files
      1. 5.1 Schematics
      2. 5.2 Bill of Materials
      3. 5.3 Board Layout
  2.   Revision History

2.3 Test Equipment

Power Supplies: HV-PS should be capable of 80V/20A, and LV-PS 40V/80A. To operate 2 EVMs in 4 phase configuration, the HV-PS and LV-PS capabilities should be doubled. Bench power supplies to generate UVLO, ISETA, DIR, and EN1 and EN2 signals should be capable of 5V/0.1A.

Electronic Loads: The HV-E-Load should be capable of 80V/20A, and LV-E-Load 40V/80A. To operate 2 EVMs in 4 phase configuration, the E-Loads’ capabilities should be doubled.

Meters: Because most current meters are rated only to 10 A, shunts are recommended to measure the current using a DVM.

Oscilloscope: An oscilloscope and 10x probes with at least 20-MHz bandwidth is required. Current probe capable of 50 A is required to monitor the inductor current via a wire loop inserted to the non-switching side of the inductor.