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SparkFun Brushless Motor Driver - 3-Phase (TMC6300)

The SparkFun 3-Phase Brushless Motor Driver, featuring the TMC6300 from ADI + Trinamic, is a powerful and easy-to-use three-phase motor driver that was designed to control our Brushless Gimbal Motor. It can be used to control any 3-phase BLDC or PMSM motor with up to 2A (1.4ARMS) of total drive current. Separate high-side and low-side control of the three half-bridges allows for incredible control of each phase of the motor commutation. The driver also provides temperature and short circuit protections, and a diagnostic output to indicate system faults. With a 1.8V regulated power output and an operating voltage down to 2V, the TMC6300 is suitable for low-power microcontroller and battery-powered designs (min. two AA/NiMh cells, or one to two Li-Ion cells).

Our board layout has been designed with the LEDs and labels facing up, IC down. This allows the thermal pad on the board to be accessed if cooling is required. Additionally, the breakout pins are specially aligned to fit perfectly onto a breadboard and hold the headers more perpendicular to facilitate assembly.

Controlling 3-phase motors is not trivial and this board requires six PWM signals to fully control one motor. We've found the Arduino Simple Field Oriented Control library to work well with the board; however, there are some hardware limitations such as supported microcontrollers for 6PWM Mode. With additional considerations, for integrating position sensors into the feedback control loop.

Get Started with the SparkFun TMC6300 Brushless Motor Driver Guide

Breakout Board

  • TMC6300 Motor Driver IC
  • Inputs:
    • VS/GND - Power (2-11V)
    • VCP - Charge Pump (for capacitor)
    • VIO - I/O Logic Level/Standby Control
    • High-side and Low-side MOSFET pairs
      • UH/UL (PWM Input)
      • VH/VL (PWM Input)
      • WH/WL (PWM Input)
  • Outputs:
    • SEN - Current sense
    • DIAG - Diagnostic
    • Power Output from the three half-bridges
      • U/V/W (Motor Phase)

TMC6300 Features

  • Voltage Range: 2-11V
    • Max current: 2A (1.4ARMS)
    • Operating current: 7mA
    • Standby current: <50nA
  • I/O Connections:
    • 3 Half-bridges
      • Input: High-side and Low-side MOSFET pairs
        • Low RDSON (HS + LS): 170mΩ
      • Output: Motor drive phase
    • Current sense
    • Diagnostic indicator
    • Regulated 1.8V power
    • Charge pump
  • Protection:
    • Thermal shutdown: 150°C
    • Short circuit shutdown

Tags

SparkFun Brushless Motor Driver - 3-Phase (TMC6300) Product Help and Resources

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

1 Soldering

Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Core Skill: Robotics

This skill concerns mechanical and robotics knowledge. You may need to know how mechanical parts interact, how motors work, or how to use motor drivers and controllers.

4 Robotics

Skill Level: Experienced - Your experiences should include working with stepper motors and feedback system. You may need to understand how encoders and more complex control systems work.
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Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

3 Programming

Skill Level: Competent - The toolchain for programming is a bit more complex and will examples may not be explicitly provided for you. You will be required to have a fundamental knowledge of programming and be required to provide your own code. You may need to modify existing libraries or code to work with your specific hardware. Sensor and hardware interfaces will be SPI or I2C.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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