A3981KLPTR-T

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A3981KLPTR-T

+BOM

IC MTR DRV BIPOLR 3-5.5V 28TSSOP

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Specifications

Attribute Value
Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
MotorType-Stepper Bipolar
Function Driver - Fully Integrated, Control and Power Stage
OutputConfiguration Half Bridge (4)
Interface SPI, Step/Direction
Technology DMOS
StepResolution 1, 1/2, 1/4, 1/16
Applications Automotive
Current-Output 1.4A
Voltage-Supply 3V ~ 5.5V
Voltage-Load 7V ~ 28V
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 28-TSSOP (0.173, 4.40mm Width) Exposed Pad

Overview

Description

The A3981KLPTR-T is a motor driver integrated circuit (IC) designed for precise control of stepper motors and DC motors in various applications. Manufactured by Allegro MicroSystems, this device is part of the A3981 family, known for its high-performance and efficient motor control capabilities. The IC features a built-in translator for easy implementation of full, half, quarter, and eighth-step microstepping, allowing for smooth and precise motor movement.
Key features of the A3981KLPTR-T include a wide operating voltage range, adjustable current control, and built-in protection mechanisms such as thermal shutdown, under-voltage lockout, and overcurrent protection. These safety features ensure reliable operation and enhance the longevity of the device and the motor it controls.
This IC is particularly suitable for applications like 3D printers, robotics, and industrial automation, where precise motor control is crucial. Its compact design and efficient performance make it an ideal choice for both hobbyists and professionals seeking a reliable motor driver solution.

Equivalent

The A3981KLPTR-T is a microstepping motor driver IC from Allegro MicroSystems. Equivalent products may include:
1. DRV8825 from Texas Instruments
2. L6470 from STMicroelectronics
3. TB6600 from Toshiba
4. TMC2208 from Trinamic
These alternatives offer similar functionalities, but compatibility depends on specific design requirements such as voltage, current ratings, and other features. Always check the datasheets and application notes for exact specifications and ensure they meet your project needs.

Features

The A3981KLPTR-T is a microstepping motor driver designed for bipolar stepper motors. Key features include:
1. Microstepping Control: Offers precise control with up to 16 microsteps per step, improving motor smoothness and position accuracy.
2. Current Control: Advanced current control through a fixed off-time, pulse-width modulation (PWM) technique, which helps in minimizing power loss and improving efficiency.
3. Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout to safeguard the device and connected components.
4. Low RDS(on): Features low on-resistance, enhancing thermal efficiency and reducing power dissipation.
5. Adjustable Settings: Configurable settings for step modes and current levels to suit different application needs.
6. Operating Voltage: Supports a wide voltage range, making it versatile for various applications.
7. Compact Package: Available in a compact package suitable for space-constrained applications.
These features make it suitable for various applications such as 3D printers, robotics, and CNC machines, where precise motor control is crucial.

Pinout

The A3981KLPTR-T is a motor driver IC developed by Allegro MicroSystems. It is designed primarily for driving bipolar stepper motors in full, half, quarter, and eighth-step modes. This IC is typically packaged in a 28-pin TSSOP (Thin Shrink Small Outline Package) with an exposed thermal pad to enhance heat dissipation.
Key functions of the A3981 include:
1. Microstepping: Offers up to 1/8th microstepping for precise control of stepper motors.
2. Current Control: Features a built-in current control mechanism, allowing dynamic adjustment of the output current to optimize motor performance.
3. Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout to ensure reliable operation and prevent damage.
4. PWM Control: Utilizes a pulse-width modulation (PWM) technique for current regulation, improving efficiency.
The A3981 also provides a simple interface for control and is designed to minimize external components, simplifying the design process for applications requiring motor control.

Manufacturer

The A3981KLPTR-T is manufactured by Allegro MicroSystems. Allegro MicroSystems is a company that specializes in developing and manufacturing high-performance power and sensing semiconductor solutions. Their products are used in a variety of applications, including automotive, industrial, consumer, and energy-efficient systems. Allegro is known for its expertise in magnetic sensor integrated circuits (ICs) and power ICs, which are critical components in motion control and energy management applications. The company is based in the United States and operates globally, serving a wide range of customers in different industries.

Application

The A3981KLPTR-T is a microstepping motor driver designed for precision control of bipolar stepper motors. Its primary application areas include:
1. Industrial Automation: Used in CNC machines, robotics, and automated assembly systems for precise motor control.
2. 3D Printing: Provides accurate step control for printer head movements, ensuring high-quality prints.
3. Medical Equipment: Utilized in devices requiring precise motor actuation, such as pumps and imaging systems.
4. Consumer Electronics: Applied in devices like cameras for lens positioning.
5. Office Equipment: Used in printers and scanners for accurate paper handling and carriage positioning.
These applications benefit from its features such as microstepping, voltage regulation, and thermal protection.

Package

The A3981KLPTR-T is a microstepping motor driver IC in a TSSOP (Thin Shrink Small Outline Package) with an exposed thermal pad for enhanced heat dissipation. This package type is efficient for space-constrained applications and improves thermal management for the IC.

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