TMC4670-EVAL

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Evaluation and demonstration boards and kits are essential for designers to understand the basic concept and operation of components, as well as to evaluate component possibilities and identify potential applications. The TMC4670-EVAL evaluation board provides a comprehensive set of functionality to help designers and application engineers explore this highly integrated motor control solution.

The TMC4670-EVAL is a complete three-phase motor control and power supply solution that provides simple evaluation for bi-directional BLDC- or stepper motors and their applications. The evaluation board ensures the required operation of the TMC4670, including the necessary power-flows and field supply control. In addition, the integrated motor stage, consisting of three bipolar brushless H-bridges, as well as the analog current sensing system, allow for a fast evaluation of the TMC4670.

The TMC4670-EVAL primarily serves as an evaluation platform, but it can also serves as a demonstration board for developers to show the performance of the TMC4670 in various motor control applications. The evaluation board supports both BLDC and stepper motors and features a wide variety of additional capabilities for a comprehensive evaluation of the TMC4670.

The working principle of the TMC4670-EVAL follows that of the TMC4670. The TMC4670 is a fully integrated three-phase motor controller IC that can be used to control a variety of brushed and brushless DC motors, stepper motors or even three-phase AC induction motors. The TMC4670 uses a technique called Field Oriented Control (FOC), which allows for smooth and efficient operation of the motor. It also provides an integrated current sensing system, allowing for closed loop control of the motor’s speed and torque.

The TMC4670-EVAL features various peripherals and functionality for evaluation and demonstration purposes. The board includes an NRF24L01 wireless transceiver, three bipolar brushless H-bridges,an analog current sensing system, a low-pass filter for the output current sensing, an optional optocoupler for sensorless motor operation, a linear voltage regulator, as well as an integrated bootloader, allowing for firmware updates over the wireless connection.

The TMC4670-EVAL also provides a range of various other useful features. The board supports various communication protocols, such as USB, UART, SPI and I2C, allowing for easy connection to PCs or microcontrollers. An onboard SWD connector and debug headers further assist in the debugging and programming processes. Integrated LED indicators provide convenient visual feedback regarding the status of the board and the system.

All in all, the TMC4670-EVAL is an ideal tool for both evaluation and demonstration purposes. The board is easy to set up and use, and contains a wide array of features and advantages. By providing a comprehensive set of functionality, the evaluation board ensures the required operation of the TMC4670, and enables designers and application engineers to explore the highly integrated motor control solution.

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