SBAU473A January   2025  – February 2025 AMC1200 , AMC1200-Q1 , AMC1202 , AMC1300 , AMC1300B-Q1 , AMC1301 , AMC1301-Q1 , AMC1302 , AMC1302-Q1 , AMC1400 , AMC1400-Q1 , AMC21C12 , AMC22C11 , AMC22C11-Q1 , AMC22C12 , AMC22C12-Q1 , AMC23C10 , AMC23C11 , AMC23C12 , AMC23C12-Q1 , AMC23C14 , AMC23C15 , AMC23C15-Q1 , AMC3301 , AMC3301-Q1 , AMC3302 , AMC3302-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Hardware Overview
    2. 2.2 Assembly Instructions
    3. 2.3 Interfaces
      1. 2.3.1 Analog Input
      2. 2.3.2 Isolated Amplifier (AMC3302) Analog Output
      3. 2.3.3 Isolated Comparator (AMC23C15) Analog Output
    4. 2.4 Power Requirements
      1. 2.4.1 VDD2 Input
    5. 2.5 Test Points
    6. 2.6 Lug Information
  9. 3What to Do and What Not to Do
  10. 4Implementation Results
    1. 4.1 Evaluation Procedure
      1. 4.1.1 Equipment Setup
      2. 4.1.2 Test Procedure
      3. 4.1.3 Full Signal Chain Evaluation Procedure
    2. 4.2 Performance Data and Results
      1. 4.2.1 Shunt Selection Calculations
      2. 4.2.2 Filter Selection
      3. 4.2.3 Thermal Results
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Compliance Information
    1. 7.1 Compliance and Certifications
  14. 8Related Documentation
  15. 9Revision History

4.1.2 Test Procedure

Note: Verify that the outputs of the connected supplies are disabled before connecting or disconnecting equipment.

  1. Set the 5V (±10%) source and limit the current to 50mA as noted in Section 4.1.1. Connect the EVM voltage source to the VDD pin of the connector, referenced to GND2. Turn on the power source and make sure there is no more than the specified current limit in the device data sheet drawn.
  2. Tie inputs together and to HGND. Use the oscilloscope or the DMM to verify that isolated power is present on both supplies. Measure testpoint OUTP referenced GND and testpoint OUTN referenced to GND and verify the isolated voltage is at the common-mode output voltage (typical 1.44V). This confirms device functionality.
  3. Connect the oscilloscope or the DMM to the AMC3302 differential output.
  4. Connect the high current carrying cables to the positive and negative lugs, IN+ and IN-. For high-side measurement of positive current, IN– sources to the electronic load; for negative current, IN+ sources to the load. Set current bounds if supplies allow. Turn on all connected supplies.
  5. Apply the appropriate full-scale linear input signal: ±50A.
  6. Measure the AMC3302 differential output with the oscilloscope or the DMM.
    1. Verify that the differential output voltage swings between the specified range in the device data sheet: ±2.05V.