SLA7077MPRT

Product Overview

Category: Integrated Circuit (IC)

Use: Motor Driver

Characteristics: - High-performance motor driver IC - Designed for driving bipolar stepper motors - Suitable for various applications requiring precise motor control

Package: Multiwatt15 package

Essence: SLA7077MPRT is a motor driver IC that provides high-performance and precise control for bipolar stepper motors.

Packaging/Quantity: The SLA7077MPRT is typically sold in reels containing 250 units per reel.

Specifications

• Supply Voltage: 12V to 36V
• Output Current: Up to 2.5A per phase
• Maximum Power Dissipation: 25W
• Operating Temperature Range: -20°C to +85°C
• Logic Input Voltage: 3.3V to 5V
• Step Modes: Full, Half, Quarter, Eighth, Sixteenth

Detailed Pin Configuration

The SLA7077MPRT has the following pin configuration:

1. VCC - Power supply voltage input
2. GND - Ground reference
3. CP1 - Clockwise pulse input
4. CW/CCW - Direction control input
5. CP2 - Counterclockwise pulse input
6. PH1 - Phase output 1
7. PH2 - Phase output 2
8. VREF - Reference voltage for current control
9. MODE0 - Step mode selection input
10. MODE1 - Step mode selection input
11. RESET - Reset input
12. SLEEP - Sleep mode control input
13. ENABLE - Enable/disable control input
14. OUT1 - Output 1
15. OUT2 - Output 2

Functional Features

• Microstep resolution up to 1/16th of a step
• Built-in protection features such as thermal shutdown and overcurrent detection
• Low power consumption in standby mode
• High-speed pulse input up to 100kHz
• Adjustable motor current through the reference voltage (VREF) pin

Advantages and Disadvantages

Advantages: - Precise control of bipolar stepper motors - Multiple step modes for flexible motor control - Built-in protection features ensure safe operation - Compact and easy-to-use package

Disadvantages: - Limited to driving bipolar stepper motors only - Requires an external power supply

Working Principles

The SLA7077MPRT operates by receiving pulse signals from the CP1 and CP2 pins, which determine the direction and step size of the motor. The logic inputs CW/CCW, MODE0, and MODE1 control the direction and microstep resolution. The motor current is adjusted through the VREF pin, allowing precise control of the motor's torque.

Detailed Application Field Plans

The SLA7077MPRT is widely used in various applications that require precise control of bipolar stepper motors, including:

1. Robotics: Used in robotic arms and joints for precise positioning and movement.
2. CNC Machines: Enables accurate control of the cutting tools and movement in computer numerical control machines.
3. 3D Printers: Provides precise control of the print head movement for high-quality prints.
4. Automated Systems: Used in automated systems for accurate positioning and control of conveyor belts, assembly lines, etc.
5. Medical Equipment: Used in medical devices such as surgical robots and diagnostic equipment for precise movements.

Detailed and Complete Alternative Models

1. A4988 - Another popular motor driver IC with similar features and capabilities.
2. DRV8825 - Motor driver IC with higher current handling capacity and advanced features.
3. L298N - Dual H-bridge motor driver IC suitable for driving both DC and stepper motors.
4. TB6600 - Motor driver IC with higher current capacity and adjustable microstep resolution.

These alternative models provide similar functionality and can be used as alternatives to the SLA7077MPRT depending on specific requirements.

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