Allegro MicroSystems

A4987SESTR-T

A4987SESTR-T Description

The A4987SESTR-T is a high-performance bipolar stepper motor driver IC designed for general-purpose applications. Manufactured by Allegro MicroSystems, this device offers robust performance and versatility, making it suitable for a wide range of motor control applications. The A4987SESTR-T features a half-bridge output configuration capable of delivering up to 1A of current, ensuring efficient and reliable motor control. It operates within a supply voltage range of 3V to 5.5V and can handle load voltages from 8V to 35V, providing flexibility in power supply options.

This IC is built using DMOS technology, which enhances its efficiency and thermal performance. The A4987SESTR-T supports various step resolutions, including 1, 1/2, and 1/4 steps, allowing for precise control over motor movement. Its parallel interface facilitates easy integration with microcontrollers and other control systems. The device is packaged in a 24QFN surface-mount package, making it suitable for compact designs and high-density PCB layouts.

The A4987SESTR-T is REACH unaffected and RoHS3 compliant, ensuring environmental sustainability and regulatory compliance. It also has a moisture sensitivity level (MSL) of 2, with a 1-year shelf life, making it suitable for various manufacturing environments. The product is currently active, indicating its availability and reliability for ongoing projects.

A4987SESTR-T Features

• Output Current Capability: Delivers up to 1A of current, suitable for driving small to medium-sized stepper motors.
• Half Bridge Configuration: The half-bridge output configuration ensures efficient power delivery and control.
• Wide Operating Voltage Range: Operates within a supply voltage range of 3V to 5.5V, with load voltages from 8V to 35V, providing flexibility in power supply options.
• DMOS Technology: Utilizes DMOS technology for enhanced efficiency and thermal performance.
• Step Resolution: Supports 1, 1/2, and 1/4 step resolutions, enabling precise motor control.
• Parallel Interface: Facilitates easy integration with microcontrollers and other control systems.
• Surface-Mount Package: Available in a 24QFN surface-mount package, ideal for compact and high-density PCB designs.
• Environmental Compliance: REACH unaffected and RoHS3 compliant, ensuring environmental sustainability and regulatory compliance.
• Moisture Sensitivity Level: MSL 2 with a 1-year shelf life, suitable for various manufacturing environments.
• Active Product Status: Currently active, ensuring availability and reliability for ongoing projects.

A4987SESTR-T Applications

The A4987SESTR-T is ideal for general-purpose applications requiring precise control of bipolar stepper motors. Its wide operating voltage range and high current capability make it suitable for a variety of industries, including:

• Consumer Electronics: Ideal for applications such as printers, scanners, and other devices requiring precise motor control.
• Industrial Automation: Suitable for use in robotic arms, conveyor systems, and other automated machinery.
• Medical Devices: Can be used in medical equipment such as diagnostic machines and laboratory automation systems.
• Office Automation: Perfect for applications in copiers, fax machines, and other office equipment.
• Telecommunications: Useful in telecommunication equipment requiring precise motor control for antenna positioning and other applications.

Conclusion of A4987SESTR-T

The A4987SESTR-T is a versatile and high-performance bipolar stepper motor driver IC that offers a range of features and benefits suitable for general-purpose applications. Its ability to deliver up to 1A of current, support for various step resolutions, and wide operating voltage range make it a reliable choice for precise motor control. The use of DMOS technology and its compact 24QFN surface-mount package further enhance its efficiency and integration capabilities. With its environmental compliance and active product status, the A4987SESTR-T is an excellent choice for designers and engineers looking for a robust and reliable motor driver solution.