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

2.1 Hardware Overview

AMC-AMP-50A-EVM AMC-AMP-50A-EVM Hardware LabelsFigure 2-1 AMC-AMP-50A-EVM Hardware Labels

The AMC-AMP-50A-EVM has many hardware features, allowing the user to access and assess the EVM from many points in the signal chain. The default configuration is one 1mΩ shunt populated at R18 to sense ±50A applications.

Note:

This EVM is an example high current-sensing design and further designs can be modified per system requirements. Considerations included in definition table.

    1. LugsCurrent carrying cable board connectors. Copper planes under lugs help dissipate heat.
    2. Via StitchVia stitching provides aeration to dissipate heat further.
    4. AMC3302 InputAMC3302 differential analog input.
    5. AMC23C15 InputAMC23C15 analog input.
    6. AMC3302

    Isolated current-sensing amplifier with integrated DC/DC converter. If smaller footprint desired or if high-side supply is available in the application such as from a gate driver or additional transformer winding, consider the AMC1302, isolated current-sensing amplifier.

    8. LEDLED on to indicate device powered.
    9. Low-Side Power SupplyLow-side power supply connectors: terminal block J6 or test point connections.
    10. TLV9002Operational amplifier for differential to single-ended conversion.
    11. AMC3302 OutputsAMC3302 differential and single-ended outputs.
    12. AMC23C15 OutputsAMC23C15 analog outputs.