SBAU489 June   2025 AMC23C15 , AMC3302

 

  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 Digital Interface
    4. 2.4 Power Requirements
      1. 2.4.1 AVDD Input
      2. 2.4.2 DVDD Input
    5. 2.5 Test Points
    6. 2.6 Lug Information
    7. 2.7 Best Design Practices
  9. 3Implementation Results
    1. 3.1 Evaluation Procedure
      1. 3.1.1 Equipment Setup
      2. 3.1.2 Test Procedure
      3. 3.1.3 Full Signal Chain Evaluation Procedure
    2. 3.2 Performance Data and Results
      1. 3.2.1 Shunt Selection Calculations
      2. 3.2.2 Filter Selection
      3. 3.2.3 Thermal Results
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Related Documentation

3.1.2 Test Procedure

Note: Verify that the outputs of the connected supplies are disabled before connecting or disconnecting equipment.
  1. Set the first 5V (±10%) source and limit the current to 50mA, as noted in Section 3.1.1. Connect the EVM voltage source to one of the DVDD connections, referenced to DGND. Turn on the power source and make sure there is no more current limit drawn than what is specified in the device data sheets. See Section 2.4.2 for more information. Leave unpowered for now.
  2. Set the second 2.5V−5V (±10%) source and limit the current to 50mA, as noted in Section 3.1.1. Connect the EVM voltage source to one of the AVDD connections, referenced to AGND. Turn on the power source and make sure there is no more current limit drawn than what is specified in the device data sheets. See Section 2.4.1 for more information. Leave unpowered for now.
  3. Set the signal generator to a 3.3V square wave at 20MHz frequency, as noted in Section 3.1.1. Connect the signal generator to test point CLKIN, referenced to DGND. Leave unpowered for now.
  4. Tie inputs INP and INN together and to AGND. Turn on both power supplies and signal generator. Use the oscilloscope or the DMM to verify that isolated power is present on both supplies.
  5. Measure test point DOUT, referenced to DGND, using either an oscilloscope or DMM. Make sure the output is 50% high or average to 1.65V. This setting confirms device functionality. Turn off power sources.
  6. Untie the inputs and connect the high current carrying cables to the positive and negative lugs, J2 (IN+) and J5 (IN−). For high-side measurement of the positive current, IN– sources to the electronic load. For the negative current, IN+ sources to the load. Set current bounds if supplies allow. Turn on all connected supplies.
  7. Apply the appropriate full-scale linear input signal: ±50A.
  8. Measure the AMC1306M05 digital output with the oscilloscope or the DMM.

    Verify that the digital output is at the value specified by the device data sheet.

    1. For a 50A input set the output to 90% high, or approximately 2.97V. Use test-point 3V3 referenced to test-point DGND and verify using the following equation:
      Equation 1. .         3 V 3 × 0 . 9
    2. For a -50A input set the output 10% high, or approximately 0.33V. Use test-point 3V3 referenced to test-point DGND and verify using the following equation:
      Equation 2. .         3 V 3 × 0 . 1