A3955 (5)
Allegro MicroSystemsThe A3955 is available from Allegro MicroSystems at Xecor. Designed for driving bipolar stepper motors with fully integrated control and power stages, the A3955 offers flexible step resolution (1, 1/2, 1/4, 1/8), a wide voltage range (4.5V ~ 50V), and a robust output current of 1.5A. Available in a 16-PowerDIP package, it is ideal for general-purpose applications requiring precise motor control. Whether used in industrial automation, robotics, or consumer electronics, this series ensures reliable performance and efficiency for demanding applications. Xecor is an authorized distributor for Allegro MicroSystems. Please view our extensive selection of the A3955 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| A3955SB-T | Full-Bridge PWM | DIP-16 | 6,156 | |
| A3955SB | Stepper motor controller | PDIP Bat | 7,975 | |
| A3955SLB | Compact 16-pin Motor Driver in a Small Outline Integrated Circuit Package | SOP-16 | 7,385 | |
| A3955SLB-T | MS-013AA compliant for easy integration | 16-PowerSOIC | 7,944 | |
| A3955SLBTR-T | Lead Free Plastic | SOIC-16 | 9,353 |
Key Featrues
Integrated Driver Functionality: The A3955 motor driver integrates both control and power stages, simplifying the design process and reducing the need for external components. This integration enhances system reliability and efficiency, making it ideal for compact and cost-sensitive applications.
Versatile Step Resolution: With step resolutions of 1, 1/2, 1/4, and 1/8, the A3955 offers precise control over motor movements. This flexibility allows for smoother operation and finer positioning, making it suitable for applications requiring high accuracy, such as robotics and automation.
Wide Voltage Range: The driver supports a load voltage range of 4.5V to 50V and a supply voltage range of 4.5V to 5.5V. This broad range ensures compatibility with various motor types and power sources, enhancing its versatility across different use cases.
High Current Output: Capable of delivering up to 1.5A of output current, the A3955 can drive larger motors or multiple motors simultaneously. This capability improves performance in high-power applications, such as industrial machinery or heavy-duty automation systems.
Robust Operating Temperature Range: With an operating temperature range of -20°C to 150°C (TJ), the A3955 is designed to withstand harsh environments. This durability ensures reliable performance in extreme conditions, making it suitable for automotive, industrial, and outdoor applications.
Versatile Step Resolution: With step resolutions of 1, 1/2, 1/4, and 1/8, the A3955 offers precise control over motor movements. This flexibility allows for smoother operation and finer positioning, making it suitable for applications requiring high accuracy, such as robotics and automation.
Wide Voltage Range: The driver supports a load voltage range of 4.5V to 50V and a supply voltage range of 4.5V to 5.5V. This broad range ensures compatibility with various motor types and power sources, enhancing its versatility across different use cases.
High Current Output: Capable of delivering up to 1.5A of output current, the A3955 can drive larger motors or multiple motors simultaneously. This capability improves performance in high-power applications, such as industrial machinery or heavy-duty automation systems.
Robust Operating Temperature Range: With an operating temperature range of -20°C to 150°C (TJ), the A3955 is designed to withstand harsh environments. This durability ensures reliable performance in extreme conditions, making it suitable for automotive, industrial, and outdoor applications.
Applications
Precision Stepper Motor Control: The A3955 is ideal for controlling bipolar stepper motors in applications requiring precise positioning, such as 3D printers, CNC machines, and robotic arms. Its ability to support multiple step resolutions (1, 1/2, 1/4, 1/8) ensures smooth and accurate motion control, making it suitable for high-precision industrial automation systems.
Automotive Actuator Systems: The A3955 can be used in automotive applications to drive actuators for mirror adjustment, seat positioning, or throttle control. Its robust design and wide operating temperature range (-20°C to 150°C) make it reliable for use in harsh automotive environments, ensuring consistent performance under varying conditions.
Medical Equipment Positioning: The A3955 is well-suited for driving stepper motors in medical devices such as infusion pumps, imaging systems, and surgical robots. Its fully integrated driver and control stage simplify system design, while its ability to handle high current (up to 1.5A) ensures reliable operation in critical healthcare applications.
Consumer Electronics: The A3955 can be used in consumer electronics for applications like camera lens focusing, automated shutters, or small robotic toys. Its compact 16-DIP package and low-voltage operation (4.5V to 5.5V) make it an excellent choice for portable and battery-powered devices, providing efficient and precise motor control in a small form factor.
Automotive Actuator Systems: The A3955 can be used in automotive applications to drive actuators for mirror adjustment, seat positioning, or throttle control. Its robust design and wide operating temperature range (-20°C to 150°C) make it reliable for use in harsh automotive environments, ensuring consistent performance under varying conditions.
Medical Equipment Positioning: The A3955 is well-suited for driving stepper motors in medical devices such as infusion pumps, imaging systems, and surgical robots. Its fully integrated driver and control stage simplify system design, while its ability to handle high current (up to 1.5A) ensures reliable operation in critical healthcare applications.
Consumer Electronics: The A3955 can be used in consumer electronics for applications like camera lens focusing, automated shutters, or small robotic toys. Its compact 16-DIP package and low-voltage operation (4.5V to 5.5V) make it an excellent choice for portable and battery-powered devices, providing efficient and precise motor control in a small form factor.
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