SPRUJ87 june   2023

 

  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
    5. 1.5 Important Usage Notes
  8. 2Hardware
    1. 2.1  Assembly Instructions
    2. 2.2  Power Requirements
    3. 2.3  Interfaces
    4. 2.4  LaunchPad Specific Features
    5. 2.5  Jumper Information
    6. 2.6  Mechanical
    7. 2.7  System Power
    8. 2.8  BLDC Motor Drive
    9. 2.9  Motor Current Feedback
    10. 2.10 Motor Position Encoder Feedback
  9. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials (BOM)
  10. 4Additional Information
    1. 4.1 Trademarks
    2. 4.2 Terminology
  11. 5References

1.4 Device Information

This BoosterPack is part of the LaunchPad development kit ecosysem for Sitara™ Microcontrollers Family of Arm® Cortex®-R based high performance microcontrollers. With advanced networking, real-time control, and signal processing accelerators these MCU meet the emerging and dynamic requirements for industrial and automotive applications.

This BoosterPack is intended to operate with the Sitara Microcontrollers - LaunchPad Evaluation Modules. TI provides device-specific Evaluation Module (EVM) designs to help kick-start product development. See the AM263x LaunchPad and AM243x LaunchPad for more information.

The following list highlights the primary devices used in the design of this BoosterPack evaluation kit.

  • DRV8316: 40-V max 8-A peak 3-phase motor driver with integrated current sensing. This device is used to provide the MCU with a motor drive bridge network to drive the attached 3-phase BLDC motors.
  • INA241A: -5-V to 110-V bidirectional ultraprecise current sense amplifier with enhanced PWM rejection. An array of INA241A are used as the shunt current sense amplifier to provide 3-phase current feedback from the DRV8316 motor driver.
  • AMC1035: Precision delta-sigma modulator with ±1-V bipolar input and 2.5-V reference output. An array of AMC1035 are used to provide a Sigma-Delta digital modulation for the current sense feedback.
  • LMK1C1108: 8-channel output LVCMOS 1.8-V buffer. Used to distribute Sigma-Delta clocks from the attached MCU to the array of AMC1035 modulators.
  • THVD1450D: 3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection. Multiple THVD1450 are used to provide RS-485 transceiver and line-driver capability for the 3.3V MCU absolute encoder interfaces.
  • LM74502: 3.2-V to 65-V industrial RPP controller with load disconnect and OVP. These devices are used to provide over-voltage and reverse-polarity protection to the motor and encoder distribution network.

Many other devices were used in the construction of this evaluation kit as well. Please see the BP-AM2BLDCSERVO Board Design Files for details.