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L6730B

L6730B

Product Overview

  • Category: Integrated Circuit
  • Use: Motor Driver
  • Characteristics:
    • High voltage capability
    • Low quiescent current
    • Overcurrent and thermal protection
  • Package: SO-24
  • Essence: Power MOSFETs and control circuitry
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Operating Voltage Range: 8V to 52V
  • Output Current: Up to 3A
  • Output Resistance: 0.4Ω (typical)
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

  1. VCC
  2. GND
  3. IN1
  4. IN2
  5. OUT1
  6. OUT2
  7. VREF
  8. REF
  9. SENSE1
  10. SENSE2
  11. DIAG1
  12. DIAG2
  13. VS
  14. VCP
  15. CP
  16. EN
  17. UVLO
  18. VDD
  19. NC
  20. NC
  21. NC
  22. NC
  23. NC
  24. NC

Functional Features

  • Dual full-bridge motor driver
  • PWM current control
  • Adjustable overcurrent threshold
  • Undervoltage lockout protection
  • Diagnostic outputs for fault detection
  • Sleep mode for low power consumption

Advantages and Disadvantages

Advantages: - High voltage capability allows driving a wide range of motors - Low quiescent current reduces power consumption - Overcurrent and thermal protection ensure safe operation - Diagnostic outputs aid in fault detection and troubleshooting

Disadvantages: - Limited output current of up to 3A may not be suitable for high-power applications - Package size (SO-24) may limit space-constrained designs

Working Principles

The L6730B is a dual full-bridge motor driver IC that utilizes power MOSFETs and control circuitry to drive motors. It operates within a wide voltage range of 8V to 52V and can deliver an output current of up to 3A. The device incorporates PWM current control, allowing precise motor speed regulation. It also features adjustable overcurrent threshold and undervoltage lockout protection to ensure safe operation. Diagnostic outputs provide information on fault conditions, enabling efficient troubleshooting.

Detailed Application Field Plans

The L6730B motor driver IC finds applications in various fields, including:

  1. Robotics: Controlling the movement of robotic arms and mobile robots.
  2. Automotive: Driving small motors in automotive systems such as power windows, mirrors, and seat adjustments.
  3. Industrial Automation: Operating conveyor belts, pumps, and other industrial machinery.
  4. Home Appliances: Controlling the motors in appliances like washing machines, dishwashers, and vacuum cleaners.
  5. Medical Equipment: Driving motors in medical devices such as infusion pumps and surgical instruments.

Detailed and Complete Alternative Models

  1. L6206: Dual full-bridge driver with similar specifications and features.
  2. DRV8847: Dual H-bridge motor driver with integrated current sensing.
  3. TB6612FNG: Dual motor driver with low voltage capability and compact package.

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L6730B v technických řešeních

Sure! Here are 10 common questions and answers related to the application of L6730B in technical solutions:

  1. Q: What is L6730B? A: L6730B is a motor driver IC designed for driving bipolar stepper motors or bidirectional DC motors.

  2. Q: What are the key features of L6730B? A: The key features of L6730B include integrated power DMOS transistors, microstepping up to 1/16th step, programmable current control, and thermal shutdown protection.

  3. Q: How can I control the motor using L6730B? A: L6730B can be controlled through a simple step and direction interface or by using a serial interface (SPI) for more advanced control options.

  4. Q: Can L6730B handle high currents? A: Yes, L6730B can handle peak output currents up to 3A, making it suitable for driving a wide range of motors.

  5. Q: Is L6730B compatible with both bipolar stepper motors and DC motors? A: Yes, L6730B is designed to drive both bipolar stepper motors and bidirectional DC motors, providing flexibility in various applications.

  6. Q: Does L6730B support microstepping? A: Yes, L6730B supports microstepping up to 1/16th step, allowing for smoother and more precise motor movements.

  7. Q: Can I adjust the current limit of L6730B? A: Yes, L6730B allows for programmable current control, enabling you to adjust the current limit according to your motor's requirements.

  8. Q: Does L6730B have any built-in protection features? A: Yes, L6730B includes thermal shutdown protection, which helps prevent the IC from overheating and ensures safe operation.

  9. Q: What is the operating voltage range of L6730B? A: L6730B operates within a voltage range of 8V to 45V, making it suitable for a wide range of power supply configurations.

  10. Q: Are there any evaluation boards or reference designs available for L6730B? A: Yes, STMicroelectronics provides evaluation boards and reference designs for L6730B, which can help you quickly prototype and integrate the IC into your application.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.