SparkFun

SparkFun Brushless Motor Driver - 3-Phase (TMC6300)

Name: SparkFun Brushless Motor Driver - 3-Phase (TMC6300)
Brand: SparkFun
SKU: SF-ROB-21867
Price: 36.3 AUD
Availability: InStock

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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 de...

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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

Features:

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): 170m&ohm;
  - Output: Motor drive phase
- Current sense
- Diagnostic indicator
- Regulated 1.8V power
- Charge pump
Protection:
- Thermal shutdown: 150°C
- Short circuit shutdown

Documents:

Schematic
Eagle Files
Board Dimensions
Hookup Guide
Datasheet (TMC6300)
Simple FOC Arduino Library:
- Documentation
  - Installation
  - Code Overview
GitHub Hardware Repo

Jargon buster

Plain-language definitions for the technical terms used above.

breakout: A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
commutation: Commutation is the process of switching power through the motor coils at the right time to keep the motor turning. In brushless motors this is handled electronically, so the quality of commutation affects smoothness, noise, efficiency, and control at different speeds.
GND: GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
Headers: Rows of connector contacts on a fixed pitch (commonly 2.54 mm) used to link a board to a breadboard, jumper wires, or another board. They come as male pin headers and female socket headers; when a module ships with pre-soldered headers it can be used straight away, whereas bare pads require soldering the pins yourself.
microcontroller: A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
motor driver: An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
PWM: Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.