L6258E

Product Overview

• Category: Integrated Circuit (IC)
• Use: Motor Driver
• Characteristics: High voltage, high current, bipolar stepper motor driver
• Package: Multiwatt15
• Essence: The L6258E is a versatile motor driver IC designed to drive bipolar stepper motors with high precision and efficiency.
• Packaging/Quantity: Available in tape and reel packaging, with 50 units per reel.

Specifications

• Supply Voltage: 7V to 46V
• Output Current: Up to 2.8A per phase
• Output Voltage: Up to 40V
• Logic Inputs: Compatible with 3.3V and 5V logic levels
• Operating Temperature Range: -40°C to +150°C
• Protection Features: Thermal shutdown, overcurrent protection, undervoltage lockout

Detailed Pin Configuration

The L6258E has a total of 15 pins, which are assigned specific functions:

1. VREF: Reference voltage for the internal current control circuitry.
2. GND: Ground reference for the IC.
3. OUT1: Output terminal for phase 1 of the stepper motor.
4. OUT2: Output terminal for phase 2 of the stepper motor.
5. OUT3: Output terminal for phase 3 of the stepper motor.
6. OUT4: Output terminal for phase 4 of the stepper motor.
7. VCC: Positive supply voltage input.
8. SLP: Sleep mode control input.
9. RST: Reset input.
10. EN: Enable input.
11. DIR: Direction control input.
12. CLK: Clock input for step pulse generation.
13. MS1: Microstep resolution selection input 1.
14. MS2: Microstep resolution selection input 2.
15. MS3: Microstep resolution selection input 3.

Functional Features

• Microstepping: The L6258E supports microstepping up to 1/16th of a step, allowing for smoother and more precise motor control.
• Current Control: The IC incorporates a chopper circuit that enables adjustable current control for optimal motor performance.
• Protection Mechanisms: Built-in thermal shutdown, overcurrent protection, and undervoltage lockout features ensure safe operation and prevent damage to the IC and motor.
• High Voltage and Current Capability: The L6258E can handle high voltage and current levels, making it suitable for driving demanding stepper motors.

Advantages and Disadvantages

Advantages: - High precision motor control - Versatile microstepping options - Robust protection features - Wide operating temperature range - Suitable for high voltage and current applications

Disadvantages: - Requires external components for full functionality - Limited to bipolar stepper motor control

Working Principles

The L6258E operates by receiving control signals from an external microcontroller or driver circuit. These signals determine the direction and step size of the motor movement. The IC generates the necessary drive signals to control the stepper motor coils, enabling precise positioning and rotation.

Detailed Application Field Plans

The L6258E is commonly used in various applications that require accurate control of bipolar stepper motors. Some typical application fields include:

1. Robotics: The IC is utilized in robotic systems for controlling the movement of robot arms, joints, and other motorized components.
2. CNC Machines: It finds application in computer numerical control (CNC) machines for precise positioning of cutting tools, spindles, and other motor-driven parts.
3. 3D Printers: The L6258E is employed in 3D printers to control the movement of the print head and build platform, ensuring accurate layer deposition.
4. Automated Equipment: It is used in automated equipment such as conveyor systems, pick-and-place machines, and industrial automation systems for precise motor control.

Detailed and Complete Alternative Models

1. L6208: Similar bipolar stepper motor driver IC with lower voltage and current ratings.
2. DRV8825: Stepper motor driver IC with higher microstepping resolution and integrated current sensing.
3. A4988: Cost-effective stepper motor driver IC suitable for low to medium power applications.

These alternative models offer different features and specifications, allowing users to choose the most suitable option based on their specific requirements.

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