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DRV8824RHDR
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DRV8824RHDR

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High current capability - Microstepping capability - Low power consumption - Thermal shutdown protection - Overcurrent protection - Step and direction control interface

Package: QFN-28

Essence: The DRV8824RHDR is a motor driver IC designed to drive bipolar stepper motors. It provides high current capability, microstepping capability, and various protection features.

Packaging/Quantity: The DRV8824RHDR is available in a QFN-28 package. It is typically sold in reels or tubes containing multiple units.

Specifications

  • Supply Voltage: 8.2V to 45V
  • Output Current: Up to 2.5A per phase
  • Microstepping Resolution: Up to 1/32 step
  • Logic Voltage: 3.3V or 5V
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The DRV8824RHDR has a total of 28 pins. Here is a detailed pin configuration:

  1. VREF: Reference voltage for motor current control.
  2. GND: Ground reference for the IC.
  3. VMOT: Motor supply voltage.
  4. VCP: Charge pump output for gate drive voltage.
  5. CP1: External capacitor connection for charge pump.
  6. CP2: External capacitor connection for charge pump.
  7. CP3: External capacitor connection for charge pump.
  8. CP4: External capacitor connection for charge pump.
  9. CP5: External capacitor connection for charge pump.
  10. CP6: External capacitor connection for charge pump.
  11. CP7: External capacitor connection for charge pump.
  12. CP8: External capacitor connection for charge pump.
  13. CP9: External capacitor connection for charge pump.
  14. CP10: External capacitor connection for charge pump.
  15. CP11: External capacitor connection for charge pump.
  16. CP12: External capacitor connection for charge pump.
  17. CP13: External capacitor connection for charge pump.
  18. CP14: External capacitor connection for charge pump.
  19. CP15: External capacitor connection for charge pump.
  20. CP16: External capacitor connection for charge pump.
  21. CP17: External capacitor connection for charge pump.
  22. CP18: External capacitor connection for charge pump.
  23. CP19: External capacitor connection for charge pump.
  24. CP20: External capacitor connection for charge pump.
  25. CP21: External capacitor connection for charge pump.
  26. CP22: External capacitor connection for charge pump.
  27. CP23: External capacitor connection for charge pump.
  28. CP24: External capacitor connection for charge pump.

Functional Features

  • Step and direction control interface for easy integration with microcontrollers or other control systems.
  • Adjustable motor current through the VREF pin.
  • Built-in protection features such as thermal shutdown and overcurrent protection.
  • Microstepping capability allows for smoother and more precise motor movements.
  • Low power consumption for energy-efficient operation.

Advantages and Disadvantages

Advantages: - High current capability enables driving of powerful stepper motors. - Microstepping capability provides smoother and quieter motor operation. - Protection features ensure safe operation and prevent damage to the IC and motor. - Low power consumption helps in reducing overall system power requirements.

Disadvantages: - Limited maximum supply voltage range may not be suitable for certain applications. - QFN package may require specialized soldering techniques.

Working Principles

The DRV8824RHDR operates by receiving step and direction signals from a control system, such as a microcontroller. It generates the necessary drive signals to control the stepper motor. The microstepping capability allows for finer motor position control by dividing each full step into smaller microsteps.

The VREF pin is used to set the desired motor current. By adjusting the voltage at this pin, the motor current can be controlled. The IC also incorporates protection features such as thermal shutdown and overcurrent protection to prevent damage to the motor and IC in case of faults or excessive load.

Detailed Application Field Plans

The DRV8824RHDR is commonly used in various applications that require precise control of bipolar stepper motors. Some of the application fields include:

  1. 3D printers: The DRV8824RHDR enables accurate positioning and smooth movement of the printer's print head.
  2. CNC machines: It provides precise control of the machine's axes, allowing for intricate machining operations.
  3. Robotics: The motor driver ensures precise movement control in robotic systems, enhancing their functionality.
  4. Automated equipment: The DRV8824RHDR is used in various automated systems where precise motion control is required, such as conveyor belts and assembly lines.

Detailed and Complete Alternative Models

  1. A4988:

Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät DRV8824RHDR :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of DRV8824RHDR in technical solutions:

  1. Q: What is the DRV8824RHDR? A: The DRV8824RHDR is a stepper motor driver IC designed for controlling bipolar stepper motors in various applications.

  2. Q: What is the maximum voltage rating of the DRV8824RHDR? A: The DRV8824RHDR has a maximum voltage rating of 45V, making it suitable for a wide range of stepper motor applications.

  3. Q: How much current can the DRV8824RHDR deliver to the stepper motor? A: The DRV8824RHDR can deliver up to 2.5A of current to the stepper motor, allowing it to drive high-torque motors effectively.

  4. Q: Can the DRV8824RHDR operate in microstepping mode? A: Yes, the DRV8824RHDR supports microstepping modes ranging from full-step to 1/32-step, providing smoother and more precise motor control.

  5. Q: Is the DRV8824RHDR compatible with both 3.3V and 5V logic levels? A: Yes, the DRV8824RHDR is compatible with both 3.3V and 5V logic levels, making it easy to interface with various microcontrollers and control systems.

  6. Q: Does the DRV8824RHDR have built-in protection features? A: Yes, the DRV8824RHDR includes thermal shutdown, overcurrent protection, and undervoltage lockout features to protect the driver and motor from damage.

  7. Q: Can the DRV8824RHDR be used in applications requiring high-speed motor control? A: Yes, the DRV8824RHDR is capable of high-speed motor control, with a maximum step pulse frequency of 250kHz.

  8. Q: What is the recommended heat sink for the DRV8824RHDR? A: The DRV8824RHDR requires an external heat sink to dissipate heat effectively. The size and type of heat sink depend on the specific application and thermal requirements.

  9. Q: Can the DRV8824RHDR be used in battery-powered applications? A: Yes, the DRV8824RHDR has a low-power sleep mode and can operate at lower voltages, making it suitable for battery-powered applications.

  10. Q: Are there any application examples or reference designs available for the DRV8824RHDR? A: Yes, Texas Instruments provides application notes and reference designs that showcase the implementation of the DRV8824RHDR in various technical solutions. These resources can help guide the design process and provide valuable insights.

Please note that these answers are general and may vary depending on the specific requirements and use cases. It's always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.