Allegro MicroSystems

A3984SLP-T

A3984SLP-T Description

The A3984SLP-T is a high-performance integrated circuit (IC) designed for driving bipolar stepper motors, manufactured by Allegro MicroSystems. This IC is part of the Power Management (PMIC) category and is housed in a 24-TSSOP package. It operates within a supply voltage range of 3V to 5.5V and can handle a load voltage of 8V to 35V. The A3984SLP-T is designed to deliver an output current of 2A and features a half-bridge configuration with four outputs. It supports various step resolutions, including 1, 1/2, 1/4, and 1/16, making it highly versatile for different motor control applications. The device is fabricated using DMOS technology, which enhances its efficiency and performance. Despite being marked as obsolete, the A3984SLP-T remains a robust solution for general-purpose applications, particularly in environments where surface-mount technology is preferred.

A3984SLP-T Features

The A3984SLP-T offers several unique features that set it apart from similar models in the market:

• High Current Capability: With a maximum output current of 2A, the A3984SLP-T can drive larger stepper motors with ease, ensuring reliable operation even under demanding conditions.
• Flexible Step Resolutions: The IC supports multiple step resolutions (1, 1/2, 1/4, and 1/16), providing fine control over motor movement and reducing audible noise and vibration.
• Wide Operating Voltage Range: The A3984SLP-T operates efficiently within a supply voltage range of 3V to 5.5V and can handle load voltages from 8V to 35V, making it suitable for a variety of power supply configurations.
• Half-Bridge Configuration: The half-bridge output configuration with four outputs allows for efficient and precise control of bipolar stepper motors.
• DMOS Technology: The use of DMOS technology ensures high efficiency and low power consumption, contributing to the overall performance and reliability of the IC.
• Surface-Mount Packaging: The 24-TSSOP package is ideal for surface-mount applications, enabling compact and reliable integration into modern electronic systems.
• Compliance and Safety: The A3984SLP-T is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, making it suitable for unlimited storage periods.

A3984SLP-T Applications

The A3984SLP-T is well-suited for a range of general-purpose applications where precise control of bipolar stepper motors is required. Specific use cases include:

• Office Automation Equipment: Ideal for driving stepper motors in printers, scanners, and other office automation devices where precise positioning is crucial.
• Industrial Automation: Suitable for controlling stepper motors in various industrial applications, such as CNC machines, robotic arms, and conveyor systems.
• Medical Equipment: Can be used in medical devices that require precise motor control, such as laboratory analyzers and diagnostic equipment.
• Consumer Electronics: Applicable in consumer electronics like digital cameras, where stepper motors are used for lens control and other mechanical functions.

Conclusion of A3984SLP-T

The A3984SLP-T by Allegro MicroSystems is a versatile and efficient IC designed for driving bipolar stepper motors. Its high current capability, flexible step resolutions, and wide operating voltage range make it suitable for a variety of applications. The use of DMOS technology and surface-mount packaging further enhance its performance and integration capabilities. Despite being marked as obsolete, the A3984SLP-T remains a reliable choice for general-purpose motor control applications, offering significant advantages over similar models in terms of efficiency, flexibility, and compliance with environmental standards.