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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