A4973SLBTR-T

Product Overview

Category

A4973SLBTR-T belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in various electronic devices for motor control applications.

Characteristics

• A4973SLBTR-T is a high-performance, dual full-bridge motor driver.
• It is designed to drive bipolar stepper motors, bidirectional DC motors, and other inductive loads.
• The IC operates with a wide voltage range, making it suitable for different power supply configurations.
• It offers low RDS(ON) outputs, resulting in reduced power dissipation and improved efficiency.
• A4973SLBTR-T incorporates thermal shutdown circuitry to prevent overheating.

Package

The A4973SLBTR-T is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of A4973SLBTR-T lies in its ability to efficiently control motors and other inductive loads, providing precise and reliable motion control.

Packaging/Quantity

The A4973SLBTR-T is typically packaged in reels, containing a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 28V
• Output Current: Up to 1.5A per bridge
• Operating Temperature Range: -40°C to +85°C
• Logic Input Voltage Range: 2.3V to VBB
• Maximum PWM Frequency: 100 kHz

Detailed Pin Configuration

The A4973SLBTR-T features the following pin configuration:

1. OUT1A
2. OUT1B
3. GND
4. VBB
5. OUT2A
6. OUT2B
7. REF
8. VCP
9. VCP
10. VREF
11. VREF
12. VCP
13. VCP
14. OUT3A
15. OUT3B
16. VBB

Functional Features

• Dual full-bridge motor driver with integrated protection features.
• Built-in thermal shutdown circuitry prevents overheating.
• Low RDS(ON) outputs minimize power dissipation and improve efficiency.
• Supports both bipolar stepper motors and bidirectional DC motors.
• Flexible control options with logic inputs and PWM capability.

Advantages and Disadvantages

Advantages

• High-performance motor control with precise motion control capabilities.
• Wide voltage range allows for versatile power supply configurations.
• Integrated protection features enhance reliability and prevent damage.
• Low power dissipation results in improved energy efficiency.

Disadvantages

• Limited maximum PWM frequency of 100 kHz may not be suitable for certain high-speed applications.
• Requires external components for proper operation, increasing overall system complexity.

Working Principles

The A4973SLBTR-T operates by receiving control signals from a microcontroller or other control circuitry. These signals determine the direction and speed of the motor. The IC then drives the connected motor coils accordingly, providing the desired motion control. The built-in protection circuitry ensures safe operation by monitoring temperature and preventing overheating.

Detailed Application Field Plans

The A4973SLBTR-T finds application in various fields, including:

1. Robotics: Precise motor control is essential for robotic systems, and this IC enables accurate movement control in robotic arms, drones, and autonomous vehicles.
2. Industrial Automation: Motor-driven machinery, such as conveyor belts and CNC machines, benefit from the reliable and efficient motor control provided by the A4973SLBTR-T.
3. Automotive: This IC can be used in automotive applications, such as electric power steering systems and headlight leveling mechanisms, to ensure smooth and controlled motor operation.

Detailed and Complete Alternative Models

1. DRV8825: A similar motor driver IC with higher maximum current capability.
2. L298N: Dual full-bridge motor driver with integrated voltage regulation capabilities.
3. TB6600: Stepper motor driver with adjustable current control and microstepping features.

These alternative models offer different specifications and features, providing options for various motor control requirements.

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