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

4.2.3 Thermal Results

The AMC-AMP-50A-EVM is rated for ±50A peak current and ±35A RMS. The temperature rating of the FR4 based PCB used is 180°C. Figure 4-6 and Figure 4-7 demonstrate EVM thermal performance at 35A and 50A respectively. If a system requires lower temperatures, consider adding forced air cooling as demonstrated in Figure 4-8. If further low temperatures are required, consider a larger shunt size for greater heat dissipation as demonstrated in Figure 4-9. Thermal performance additionally depends on final system design and environment.

Photos captured at 25°C ambient temperature and after applying specified current for 2 minutes.

AMC-AMP-50A-EVM Typical Thermal Results: AMC-AMP-50A-EVM at 35AFigure 4-6 Typical Thermal Results: AMC-AMP-50A-EVM at 35A
AMC-AMP-50A-EVM Worst-Case Thermal Results With Forced Air Cooling: AMC-AMP-50A-EVM at 50AFigure 4-8 Worst-Case Thermal Results With Forced Air Cooling: AMC-AMP-50A-EVM at 50A
AMC-AMP-50A-EVM Worst-Case Thermal Results: AMC-AMP-50A-EVM at 50AFigure 4-7 Worst-Case Thermal Results: AMC-AMP-50A-EVM at 50A
AMC-AMP-50A-EVM Worst-Case Thermal Results With Larger Shunt Resistor Package (Size 2725): AMC-AMP-50A-EVM at 50AFigure 4-9 Worst-Case Thermal Results With Larger Shunt Resistor Package (Size 2725): AMC-AMP-50A-EVM at 50A