STMicroelectronics
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L6472H
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L6472H

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High voltage, high current motor driver - Designed for controlling stepper motors - Provides advanced motion control features

Package: Multiwatt15

Essence: The L6472H is a powerful motor driver IC that allows precise control of stepper motors in various applications.

Packaging/Quantity: The L6472H is available in a Multiwatt15 package and is typically sold in reels containing 250 units.

Specifications

  • Supply Voltage Range: 8V to 45V
  • Output Current: Up to 3.5A
  • Microstepping Resolution: Up to 1/128 step
  • Operating Temperature Range: -40°C to +150°C
  • Communication Interface: SPI

Detailed Pin Configuration

The L6472H has the following pin configuration:

  1. VCP - Charge Pump Capacitor
  2. CP1 - External Capacitor Connection
  3. CP2 - External Capacitor Connection
  4. GND - Ground
  5. VREF - Reference Voltage Output
  6. REF - Reference Voltage Input
  7. STCK - Step Clock Input
  8. DIR - Direction Input
  9. EN - Enable Input
  10. SW - Switching Node Output
  11. OUT1 - Half Bridge Output 1
  12. OUT2 - Half Bridge Output 2
  13. VM - Motor Supply Voltage
  14. VCC - Logic Supply Voltage
  15. NC - Not Connected

Functional Features

  • Advanced PWM current control
  • Stall detection and automatic torque adjustment
  • Overcurrent and thermal protection
  • Programmable microstepping resolution
  • SPI interface for easy communication with microcontrollers

Advantages and Disadvantages

Advantages: - High voltage and current capability - Precise motion control - Comprehensive protection features - Flexible microstepping resolution

Disadvantages: - Requires external components for operation - Limited to stepper motor applications

Working Principles

The L6472H operates by receiving control signals from a microcontroller through the SPI interface. It generates the necessary current waveforms to drive the stepper motor coils, allowing precise control of its position and speed. The advanced PWM current control ensures smooth and accurate motor movement. The driver also incorporates stall detection and automatic torque adjustment to prevent motor stalling and damage.

Detailed Application Field Plans

The L6472H is widely used in various applications that require precise control of stepper motors. Some common application fields include:

  1. Robotics: The L6472H enables precise positioning and movement control in robotic systems, such as robotic arms and automated machinery.
  2. 3D Printing: It provides accurate control over the stepper motors used in 3D printers, ensuring high-quality prints with fine details.
  3. CNC Machines: The driver allows precise control of stepper motors in computer numerical control (CNC) machines, enabling accurate cutting, milling, and engraving operations.
  4. Medical Equipment: The L6472H is utilized in medical devices that require precise motor control, such as surgical robots and diagnostic equipment.

Detailed and Complete Alternative Models

  1. DRV8825: A popular alternative motor driver IC with similar capabilities and features.
  2. A4988: Another commonly used motor driver IC suitable for stepper motor control.
  3. TB6600: A versatile motor driver module capable of driving various types of motors, including steppers.

These alternative models offer similar functionality to the L6472H and can be considered as alternatives based on specific requirements and compatibility.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של L6472H בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of L6472H in technical solutions:

  1. Q: What is L6472H? A: L6472H is a high-voltage stepper motor driver designed for motion control applications.

  2. Q: What voltage range does L6472H support? A: L6472H supports a wide voltage range from 8V to 45V, making it suitable for various motor types.

  3. Q: How many microstepping resolutions does L6472H offer? A: L6472H offers up to 128 microstepping resolutions, allowing for smoother and more precise motor movements.

  4. Q: Can L6472H handle high-current motors? A: Yes, L6472H can handle motors with peak currents up to 3.5A, making it suitable for driving high-power stepper motors.

  5. Q: Does L6472H have built-in protection features? A: Yes, L6472H includes several protection features such as overcurrent, thermal shutdown, and undervoltage lockout to ensure safe operation.

  6. Q: Can L6472H be controlled using a microcontroller? A: Yes, L6472H can be easily controlled using a microcontroller through its SPI interface, allowing for precise motor control.

  7. Q: Is L6472H compatible with different communication protocols? A: Yes, L6472H supports both SPI and step/direction interfaces, providing flexibility for integration into various systems.

  8. Q: Can L6472H operate in standalone mode? A: Yes, L6472H can operate in standalone mode without the need for an external microcontroller, thanks to its integrated motion engine.

  9. Q: Does L6472H have stall detection capabilities? A: Yes, L6472H includes a stall detection feature that can detect motor stalls and trigger appropriate actions to prevent damage.

  10. Q: What are some typical applications of L6472H? A: L6472H is commonly used in applications such as robotics, 3D printers, CNC machines, and industrial automation systems where precise motor control is required.

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