DRV8802PWPR

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DRV8802PWPR is a Motor Driver, Controller and Protection circuit that has been designed to control 3-phase brushless DC motors. It is specifically designed to provide high performance yet compact motor control, while also providing sufficient protection in the event of over-voltage or surge conditions. The device is powered by an integrated step-down converter with a regulated output voltage up to 17V at 2.5A. The device integrates a set of current sensing, over-current protection and over-temperature protection features to ensure robust and reliable operation of the motor.

The DRV8802PWPR can operate in both open loop (Back-EMF) mode or in closed loop (Hall-effect) mode. In the Back-EMF mode, the device takes an analog voltage reading of the motor’s output terminals and compares this to a user-defined reference voltage. If the voltage at the motor’s output terminal is greater than the reference voltage, the motor will be switched off. This is useful in situations where the motor is exposed to overvoltage or surge conditions. In the Hall-effect mode, the device incorporates a set of Hall-effect sensors to detect the magnetization of the motor’s rotor. If the rotor’s magnetization is detected to be outside a user-defined range, the motor will be switched off.

The DRV8802PWPR also offers a set of programmable outputs. There are four programmable outputs, each of which can be individually programmed to provide either a low or a high signal. The programmable outputs can be used to enable or disable the power supply to the motor, or to signal an external device of the motor’s status. The device can operate at frequencies up to 15 kHz and can detect motor direction for clockwise or counterclockwise rotation.

The DRV8802PWPR can also be used to monitor motor temperatures, with a temperature range from -40 to 125°C. The thermal protection threshold can be programmed to suit different applications and the device offers a thermal shutdown feature if the motor’s temperature exceeds the preset threshold. The DRV8802PWPR provides a set of diagnostic outputs that can be used to measure the current, temperature, and the position of the motor.

The DRV8802PWPR is an ideal choice for applications where space and energy efficiency is a priority. The device can be used to control a variety of motors, including DC brushless motors, stepper motors, and servo motors. It is particularly well suited to applications that require precise speed and torque control, such as robotics, CNC machining, or industrial automation.

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