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

2.1 Hardware Overview

Figure 2-1 shows the hardware labels for this EVM.

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

The AMC-MOD-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 R8 to sense ±50A applications.

Note: This EVM is an example high current-sensing design. Further designs are modified per system requirements. Considerations are listed below.

1. Lugs

Current-carrying cable board connectors. Copper planes under the lugs help dissipate heat.

2. Via Stitch

Via stitching provides aeration to dissipate heat further.

3. Isabellenhütte BVN-M-R001

1mΩ, ±1% tolerance shunt resistor for accurate current sensing. The PCB is not designed for more than ±70A.If an alternate current-sensing range is desired, consider alternate shunt resistor values.

4. AMC1306M05 Input Test Points

AMC1306M05 differential analog input test points.

5. High-Side Power Supply

High-side power-supply connectors: terminal block J2 or test point connections.

6. TLV709A01DBVR

Low-dropout (LDO) for stable and constant high-side power supply.

7. Low-Side Power Supply

Low-side power-supply connectors: terminal block J5 or test point connections.

8. AMC1306M05

Isolated, reinforced delta-sigma current-sensing modulator with external clock and ±50mV input. If an integrated DC/DC converter is desired, consider the AMC3306M05, isolated current-sensing modulator.

9. TPS73633DBVR

Low-dropout (LDO) for stable and constant high-side power supply.

10. LED

LED on to indicate device powered.

11. AMC1306M05 Digital Output and Clock Input Test Points

AMC1306M05 digital output (DOUT) and external clock input (CLKIN) test points.

12. AMC1306M05 Low-Side Header Connectors

Header connections for the AMC1306M05 low-side pins.

13. C2000 Control Card Connector

C2000 microcontroller control card connector for digital output analysis and clock generation.