DRV8881PEVM

DRV8881PEVM is an application board designed by Texas Instruments to evaluate the performance of its integrated circuit DRV8881. The DRV8881PEVM replicates the input and output connections of a typical application and provides access to the DRV8881’s control features. The board simplifies the evaluation of the DRV8881 by providing built-in connections for a drive circuit, 3.3V voltage regulator, 3-phase motor, and push-button, as well as other necessary components for a complete motor-control application.

The DRV8881PEVM evaluation module (EVM) board serves as a driver board for three-phase brushless dc (BLDC) motors, complete with a controller and clock driver. It is a high-performance motor control IC used to drive and control brushless DC motors. The integrated processor is supported with programmable logic, allowing the user to customize the motor control functions, such as commutation and run-time protection. The DRV8881PEVM provides a flexible and effective platform for the development of low-power BLDC motor control applications.

The working principle of the DRV8881PEVM is relatively simple. The block diagram below can be used to understand how the IC works. In short, the 6-MOSFET bridge (connected to the motor) and the support circuits (3.3V regulator and push-button) are connected to the microprocessor which is capable of reading analog and digital inputs and outputting control signals. The microcontroller reads input signals from the push-button or other input sources, and the 3.3V regulator provides a regulated voltage to the microcontroller as well as other components on the board.

The microcontroller then sends the appropriate signals to the DRV8881 IC, which in turn drives the MOSFET bridge. The MOSFET bridge is used to drive the motor in the desired direction or speed. The DRV8881PEVM has two modes of operation: open-loop mode and closed-loop mode. In open-loop mode, the microcontroller sends output signals to the DRV8881 for basic motor control. In closed-loop mode, the microcontroller reads input signals from the motor and adjusts its output signals accordingly.

The DRV8881PEVM is ideal for use in applications requiring easy evaluation and demonstration. It can be used to evaluate the performance of the DRV8881 IC in a wide variety of motor control applications. It is an excellent starting point for exploring and developing applications with motor control functions. It also features a comprehensive user guide, supporting software, and documentation, making for an easy and straightforward evaluation process.

In conclusion, the DRV8881PEVM is an effective evaluation board for demonstrating and evaluating the features and performance of the DRV8881 IC. It is useful for exploring applications with motor control functions, and it is a great starting point for developing low-power BLDC motor control applications. The DRV8881PEVM provides easy access to the DRV8881’s features and built-in control functions, making it an ideal solution for evaluation and demonstration purposes.