SLVUDN0 November   2025

 

  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
      1. 1.4.1 MSPM0G3507
      2. 1.4.2 AM62L
  8. 2Hardware
    1. 2.1 Additional Images
    2. 2.2 Power Requirements
    3. 2.3 Setup
    4. 2.4 Connector, Pin Header, and Jumper Settings
    5. 2.5 Interfaces
      1. 2.5.1 RS-485
      2. 2.5.2 RS-232
      3. 2.5.3 CAN
    6. 2.6 Debug Information - XDS110 Debug Probe
      1. 2.6.1 Application (or Back Channel) UART
      2. 2.6.2 Using an External Debug Probe Instead of the Onboard XDS110
    7. 2.7 Assembly Instructions
  9. 3Implementation Results
    1. 3.1 Performance Data and Results
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Related Documentation
    1. 6.1 Supplemental Content
  13. 7Revision History

1.1 Introduction

The AM62L-EVSE-DEV-EVM is part of the TI-EVSE development platform for AM62L and represents a universal charging controller for AC and DC charging stations with open-source software stack. The complete platform consists of three separate parts, the TMDS62LEVM, AM62L-EVSE-DEV-EVM, and the optional TIDA-010239 .

The TMDS62LEVM, serving as the main CPU, running the EVerest Open Source Software charging stack on Linux® is handling the digital communication with the EV. In addition to that, the EVM supports Ethernet and Wireless Connectivity for communications with the backend or a charge point management system, respectively. If required, the EVM can be used to support a display for HMI as well.

The AM62L-EVSE-DEV-EVM acts as the front-end controller based on the MSPM0 microcontroller. The design controls the analog handshakes with the EV as well as safety functions like locking the charging plug and monitoring the temperature of the high-voltage contacts inside. The MSP communicates through Universal Asynchronous Receiver Transmitter (UART), a serial communication protocol with the AM62L.

Add the TIDA-010239 to include an AC charger. This reference design completes the platform with an isolated AC to DC power supply with backup power in case of a grid outage. The TIDA-010239 contains the high-voltage contractor and a driver to connect the electric vehicle to the grid. Additionally, the TIDA-010239 detects if the relay is welded.

The primary function of the charging controller is to connect all the systems required for charging together, and handling the communication between these systems and the electric vehicle. The communication with an EV is always done with an analog handshake. The exact requirements vary between the different charging standards. The AM62L-EVSE-DEV-EVM offers circuitry to support the following standards Combined Charging System 1 and 2 (CCS1 CCS2), North American Charging Standard (NACS), Guobiao/Tuijian (GB/T), and Charge de Move (CHAdeMO).

In addition to the analog handshake, a second, high-level communication is required for DC-charging. In this case, not the onboard charger (OBC) of the EV, but the EVSE serves as the charger and needs to detect which voltage level and current limit is required to safely charge the EV battery. The standard ISO15118, which is used for CCS1, CCS2, and NACS, specifies Powerline Communication through a HomePlug Green PHY (HPGP) as physical layer, while GB/T and CHAdeMO use the CAN for this kind of communication. Therefore, the AM62L-EVSE-DEV-EVM includes an HPGP and a dedicated CAN transceiver. Both elements are connected to the AM62L, as the processor handles the digital communication.

Additional safety functions which are required by the charging standards are either included on the AM62L-EVSE-DEV-EVM, or can be added by external TIDA reference designs. The onboard safety functions include temperature monitoring of the contacts in the charging cable and circuitry to control a motorized locking mechanism, designed to prevent removal of the cable during the charging cycle. The AM62L-EVSE-DEV-EVM also includes connections for an external residual current detection (RCD) device, given by the TIDA-010237. To be able to connect further devices for testing, like a safety switch, or to control status LEDs, the AM62L-EVSE-DEV-EVM supports two digital inputs (24V tolerant), one analog input (0V–12V) and three digital outputs (low-side switch).

To enable communication with peripherals like energy meters and power modules, the AM62L-EVSE-DEV-EVM supports transceivers for RS-485, RS-232, and CAN.