A3992SB-T

Product Overview

Category

A3992SB-T belongs to the category of integrated circuits (ICs).

Use

The A3992SB-T IC is commonly used in electronic devices for motor control applications.

Characteristics

• The A3992SB-T is a high-performance, dual full-bridge motor driver.
• It is designed to drive bipolar stepper motors or bidirectional DC motors.
• The IC operates at a wide voltage range, making it suitable for various applications.
• It offers built-in protection features such as thermal shutdown and overcurrent detection.
• The A3992SB-T has a compact size and low power consumption.

Package

The A3992SB-T is available in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of the A3992SB-T lies in its ability to provide efficient and precise motor control in a compact form factor.

Packaging/Quantity

The A3992SB-T is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Operating Voltage Range: 7V to 35V
• Output Current: Up to 1.5A per bridge
• Maximum Power Dissipation: 1.8W
• Thermal Shutdown Temperature: 165°C
• Overcurrent Detection Threshold: Adjustable
• Logic Input Voltage: 3.3V to 5V
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The A3992SB-T IC has the following pin configuration:

1. VBB - Bridge supply voltage
2. GND - Ground
3. IN1 - Logic input 1
4. IN2 - Logic input 2
5. OUT1A - Output 1A
6. OUT1B - Output 1B
7. OUT2A - Output 2A
8. OUT2B - Output 2B
9. VREF - Reference voltage for current control
10. REF - Current reference input
11. SLEEP - Sleep mode control
12. ENABLE - Enable/disable control

Functional Features

• Dual full-bridge motor driver
• Supports bipolar stepper motors and bidirectional DC motors
• Adjustable overcurrent detection threshold
• Built-in thermal shutdown protection
• Low power consumption in sleep mode
• Enable/disable control for power management

Advantages and Disadvantages

Advantages

• High-performance motor control
• Wide operating voltage range
• Compact size
• Built-in protection features
• Efficient power management

Disadvantages

• Limited output current capacity (up to 1.5A per bridge)
• Requires external current limiting circuitry for higher current applications

Working Principles

The A3992SB-T operates by receiving logic inputs (IN1 and IN2) to control the direction and speed of the motor. The IC utilizes a dual full-bridge configuration to drive the motor coils. By adjusting the reference voltage (VREF) and the current reference input (REF), the output current can be regulated. The IC also incorporates thermal shutdown protection to prevent overheating.

Detailed Application Field Plans

The A3992SB-T is widely used in various applications, including but not limited to:

1. Robotics: Controlling the movement of robotic arms and joints.
2. CNC Machines: Precise control of stepper motors in computer numerical control machines.
3. 3D Printers: Driving the stepper motors responsible for the X, Y, and Z-axis movements.
4. Automotive Systems: Motor control in automotive applications such as power windows and seat adjustments.
5. Industrial Automation: Controlling motors in conveyor systems, packaging machinery, and other industrial automation equipment.

Detailed and Complete Alternative Models

1. A4988: Similar dual full-bridge motor driver with higher output current capacity.
2. DRV8825: Dual H-bridge motor driver with adjustable current control and microstepping capability.
3. L298N: Dual full-bridge motor driver with higher voltage and current ratings.
4. TB6600: Stepper motor driver with higher current capacity and advanced control features.

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

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