The Texas Instruments DRV8842PWPR is a highly-integrated stepper motor driver and controller designed for industrial and automotive applications. It is a single-supply, three-phase stepper motor driver with a wide input voltage range of 8V to 45V, making it suitable for a variety of applications.
Description:
The DRV8842PWPR is a monolithic device that combines a power driver, a microstep control generator, and a control interface in a single package. It features three half-bridge driver stages, each capable of driving two paralleled N-channel power MOSFETs. The device also includes an internal charge pump that generates the negative voltage required for the high-side drivers, eliminating the need for an external charge pump.
Features:
- High integration: The DRV8842PWPR integrates a power driver, microstep control generator, and control interface in a single package, reducing the number of external components required.
- Wide input voltage range: The device operates over a wide input voltage range of 8V to 45V, making it suitable for various applications.
- Microstep control: The DRV8842PWPR supports microstepping up to 1/256 step resolution, providing smooth and precise control of the motor.
- Advanced control interface: The device features a SPI-compatible serial interface, allowing for easy integration with microcontrollers and other digital systems.
- Internal charge pump: The internal charge pump eliminates the need for an external charge pump, simplifying the overall system design.
- Thermal protection: The DRV8842PWPR includes thermal shutdown and over-temperature warning features to protect the device and motor from damage due to overheating.
- Low standby current: The device has a low standby current of 1.5mA, making it suitable for battery-powered applications.
Applications:
- Industrial automation: The DRV8842PWPR can be used in a variety of industrial applications, such as robotics, CNC machines, and conveyor systems, where precise motor control is required.
- 3D printing: The device is well-suited for 3D printers, providing smooth and precise control of the print head movement.
- Medical equipment: The DRV8842PWPR can be used in medical equipment that requires precise motor control, such as diagnostic imaging systems and surgical robots.
- Office automation: The device can be used in office automation equipment, such as printers and scanners, to provide smooth and accurate movement control.
- Automotive applications: The DRV8842PWPR is suitable for automotive applications, such as power window control, mirror adjustment, and HVAC systems, where reliable and precise motor control is essential.
In summary, the Texas Instruments DRV8842PWPR is a highly-integrated stepper motor driver and controller that offers a wide input voltage range, microstep control, and advanced features, making it suitable for a variety of industrial, automotive, and consumer applications.