Allegro MicroSystems

A3982SLB-T

A3982SLB-T Description

The A3982SLB-T is a high-performance, bipolar stepper motor driver designed for general-purpose applications. Manufactured by Allegro MicroSystems, this IC offers a robust solution for driving bipolar stepper motors with a supply voltage range of 3V to 5.5V and a load voltage range of 8V to 35V. The A3982SLB-T features a half-bridge output configuration with a maximum output current of 2A, making it suitable for a variety of motor control applications. The device employs DMOS technology, providing high efficiency and reliability. Despite being marked as obsolete, the A3982SLB-T remains a viable option for legacy systems and specific applications where its unique features are advantageous.

A3982SLB-T Features

• Output Current: The A3982SLB-T supports a maximum output current of 2A, ensuring robust performance in demanding motor control applications.
• Output Configuration: The half-bridge configuration (4) allows for efficient control of bipolar stepper motors, providing precise control over motor speed and position.
• Step Resolution: The device offers step resolutions of 1 and 1/2, enabling fine control over motor movement and ensuring smooth operation.
• Supply Voltage: The wide supply voltage range of 3V to 5.5V makes the A3982SLB-T compatible with various power sources, enhancing its versatility.
• Load Voltage: With a load voltage range of 8V to 35V, the A3982SLB-T can drive motors with varying voltage requirements, making it suitable for a broad range of applications.
• Technology: Utilizing DMOS technology, the A3982SLB-T provides high efficiency and reliability, ensuring long-term performance.
• Compliance: The device is REACH unaffected and ROHS3 compliant, meeting stringent environmental and safety standards.
• Moisture Sensitivity Level (MSL): Rated at MSL 3 (168 hours), the A3982SLB-T is suitable for surface-mount applications and can withstand moderate moisture exposure.
• Mounting Type: The surface-mount package ensures easy integration into compact and space-constrained designs.
• Interface: The logic interface simplifies control and integration with microcontrollers and other digital systems.

A3982SLB-T Applications

The A3982SLB-T is ideal for general-purpose applications requiring precise control of bipolar stepper motors. Its wide voltage range and robust output current make it suitable for various industrial, automotive, and consumer electronics applications. Specific use cases include:

• Industrial Automation: The A3982SLB-T can drive stepper motors in CNC machines, robotic arms, and conveyor systems, providing precise control and reliable operation.
• Automotive: In automotive applications, the device can control stepper motors in seat adjustments, window mechanisms, and other electromechanical systems.
• Consumer Electronics: The A3982SLB-T is well-suited for applications such as printers, scanners, and other devices requiring precise motor control.
• Medical Equipment: The device can be used in medical devices such as infusion pumps, diagnostic equipment, and other systems requiring accurate and reliable motor control.

Conclusion of A3982SLB-T

The A3982SLB-T, manufactured by Allegro MicroSystems, is a versatile and reliable bipolar stepper motor driver. Despite being marked as obsolete, its unique features and robust performance make it an attractive option for specific applications. The device's wide voltage range, high output current, and precise step resolution ensure efficient and accurate motor control. Its compliance with environmental and safety standards further enhances its suitability for various industries. Whether used in industrial automation, automotive systems, consumer electronics, or medical equipment, the A3982SLB-T provides a dependable solution for precise motor control.