Allegro MicroSystems

A4984SESTR-T

A4984SESTR-T Description

The A4984SESTR-T is a high-performance, bipolar stepper motor driver designed for general-purpose applications. Manufactured by Allegro MicroSystems, this IC offers robust power management capabilities and is ideal for driving bipolar stepper motors with a supply voltage range of 3V to 5.5V. The A4984SESTR-T is housed in a 24-pin QFN package, making it suitable for surface-mount applications. It features a half-bridge output configuration with a maximum current output of 2A, ensuring efficient power delivery to the motor.

A4984SESTR-T Features

• Output Current: The A4984SESTR-T supports a maximum output current of 2A, providing ample power for driving stepper motors.
• Output Configuration: The half-bridge configuration (4) allows for efficient control of bipolar stepper motors, ensuring smooth and precise motor operation.
• Step Resolution: This IC offers a range of step resolutions, including 1, 1/2, 1/4, and 1/8, providing flexibility in motor control and enabling precise positioning.
• Supply Voltage: The wide supply voltage range of 3V to 5.5V ensures compatibility with various power sources, making it versatile for different applications.
• Load Voltage: The A4984SESTR-T can handle load voltages from 8V to 35V, providing robustness against voltage fluctuations.
• Technology: Utilizing DMOS technology, the A4984SESTR-T offers high efficiency and low power loss.
• Compliance and Safety: The A4984SESTR-T is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance.
• Moisture Sensitivity Level: With an MSL of 2 (1 Year), the IC is protected against moisture, ensuring reliability in various environmental conditions.
• Interface: The logic interface simplifies integration with control systems, making it easy to implement in various applications.
• Packaging: The tape & reel (TR) packaging format facilitates efficient handling and assembly in manufacturing processes.

A4984SESTR-T Applications

The A4984SESTR-T is designed for general-purpose applications where precise control of bipolar stepper motors is required. Some specific use cases include:

• Consumer Electronics: Ideal for driving stepper motors in devices such as printers, scanners, and other consumer electronics that require precise positioning.
• Industrial Automation: Suitable for applications in industrial automation, such as CNC machines, robotic arms, and conveyor systems, where accurate motor control is crucial.
• Medical Devices: Can be used in medical equipment like diagnostic machines and laboratory automation, where reliability and precision are paramount.
• Office Equipment: Applicable in office automation devices such as copiers and fax machines, ensuring smooth and precise operation.

Conclusion of A4984SESTR-T

The A4984SESTR-T from Allegro MicroSystems is a versatile and reliable bipolar stepper motor driver, offering a range of features that make it suitable for a wide array of applications. Its robust design, wide supply voltage range, and multiple step resolutions provide flexibility and precision in motor control. The A4984SESTR-T stands out for its compliance with environmental and safety standards, making it an ideal choice for engineers and designers looking for a high-performance motor driver. Whether in consumer electronics, industrial automation, medical devices, or office equipment, the A4984SESTR-T ensures efficient and reliable motor operation.