DRV8800PWP

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Power management integrated circuits (PMICs) of the motor drivers and controllers category are highly useful in delivering the appropriate operating voltage, current, and power to various electrical applications, including commercial and industrial uses. The DRV8800PWP by Texas Instruments (TI) is one such device and is a powerful and unique PMIC for motor drivers and controllers. It is be able to provide two separate, independent and adjustable current output configurations for two-phase, bipolar stepper motors or four-phase, unipolar stepper motors.

The integrated device includes a fully integrated half bridge power stage with current sensing and provides a wide range of features such as adjustable current limits, output voltage dynamics, and thermal shutdown capability. The current sensing allows for the device to detect any fault conditions and shut down the power stage to center/hold the motor axis. The DRV8800PWP also offers short circuit protection and power loss protection, and is extremely small, with dimensions measured at only 3mm by 3 mm and a height of 0.9mm.

The five pins of the DRV8800PWP incorporate a ground connection, two set up pins (SUN and SIN) and two output pins (VIN and VSENS). These inputs are all connected to the internal logic and timed to match the device’s output current. The VIN and VSENS pins toggle in sync with each other and regulate the output current by allowing it to pass through the device accordingly. The SUN and SIN pins are connected to the power stage and allows the user to select the preferred output configuration.

In terms of typical applications, the DRV8800PWP is ideal for use in motor stepping applications, as it can be driven directly by PWM and I2C settings as well as through a hardware-enabled constant current mode. It can also be used in multi-axis systems, such as CNC machines, which need flexibility in terms of controlling the power of the axis motors. It’s also suitable for portable applications due to its extremely low power consumption, and its built-in voltage sensing ability.

In conclusion, the DRV8800PWP provides a high performance, fully integrated device for two-phase, bipolar stepper motors and four-phase, unipolar stepper motors. It features adjustable current limits, output voltage dynamics and thermal shut down capability. It’s also energy efficient, making it highly suitable for portable applications, and its ground connection, two set up pins and two output pins make for easy setup and use.

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