Part Number: A3983SLPTR-T

Manufacturer: Allegro MicroSystems

Description: IC MTR DRV BIPOLR 3-5.5V 24TSSOP

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of A3983SLPTR-T

Datasheet  A3983SLPTR-T datasheet
Category Integrated Circuits (ICs)
Family PMIC – Motor Drivers, Controllers
Manufacturer Allegro MicroSystems, LLC
Packaging Tape & Reel (TR)
Part Status Active
Motor Type – Stepper Bipolar
Motor Type – AC, DC
Function Driver – Fully Integrated, Control and Power Stage
Output Configuration Half Bridge (4)
Interface Step/Direction
Technology DMOS
Step Resolution 1, 1/2, 1/4, 1/8
Applications General Purpose
Current – Output 2A
Voltage – Supply 3 V ~ 5.5 V
Voltage – Load 8 V ~ 35 V
Operating Temperature -20°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case 24-TSSOP (0.173″, 4.40mm Width) Exposed Pad
Supplier Device Package 24-TSSOP-EP

A3983SLPTR-T Introduction

The A3983SLPTR-T is a microstepping motor driver that is very flexible and easy to use. It is made to run bipolar stepper motors in different step modes. It works well in a wide range of motor control applications thanks to its high output drive capacity. The small and low-profile package option makes it easy to fit into designs with limited room. In this detailed guide, we’ll talk about the A3983SLPTR-T’s features, how it works, and what it can be used for. This will help you make the most of it in your motor control projects.

A3983SLPTR-T Operating Principles

The A3983SLPTR-T has a translator built in, which makes controlling motors much easier. By giving the STEP input a single pulse, the motor can be moved one microstep. The A3983SLPTR-T doesn’t need phase sequence tables or high-frequency control lines like other motor drivers, which need complicated setup. This makes it a good choice for situations where a complex computer can’t be used or is already being used too much.

The automatic control method for current decay is one of the most important parts of the A3983SLPTR-T. This control method changes the current decay mode (Slow or Mixed) based on how the phase currents of the motor change. When a step makes the current go up, the decay mode is changed to slow decay. On the other hand, the decay mode is set to Mixed if the step leads to a smaller current. With this clever current decay control, motor noise is reduced, step accuracy is improved, and power loss is kept to a minimum.

The A3983SLPTR-T has built-in synchronous rectification control circuits to improve power dissipation even more during pulse-width modulation (PWM) operation. This feature makes the motor driver work better overall and helps it get rid of power more efficiently. By making the most of how power is lost, the A3983SLPTR-T can handle higher current loads while generating less heat and running reliably.

In short, the A3983SLPTR-T’s built-in translator makes motor control easier, the automatic current decay control method reduces motor noise and improves step accuracy, and the internal synchronous rectification control circuitry improves power dissipation during PWM operation. Together, these features make it possible to control a motor in a wide range of situations in a way that is both quick and accurate.

A3983SLPTR-T Key Features and Specifications

The A3983SLPTR-T is a microstepping motor driver that can be used in a variety of ways. It has a number of important features and specifications that make it easy to handle motors. Here are its most important parts:

  • Output Drive Capacity: With an output drive capacity of up to 35V and 2A, the A3983SLPTR-T can power powerful stepper motors. This high drive capacity makes sure that the motor works well and reliably, even when the job is hard.
  • Compatibility with Step Modes: This motor driver works with full-, half-, quarter-, and eighth-step modes. This gives the user exact control over how the motor moves and lets them choose the right step mode based on how much resolution and torque they need.
  • Low-Profile 24-Pin TSSOP Package: The A3983SLPTR-T comes in a low-profile 24-pin TSSOP package, which has a small size that makes it easy to use in designs with limited room. Also, the package has an open thermal pad, which makes it easy for heat to escape and helps keep the motor running at the right temperature.

The A3983SLPTR-T can be used for a wide range of motor control applications because it has a high output drive capacity, is compatible with different step modes, and comes in a low-profile package. Robotics, automation systems, 3D printers, and CNC machines can all use this motor driver because it works reliably and quickly. This makes it a great choice for difficult motor control jobs.

A3983SLPTR-T Applications

The A3983SLPTR-T microstepping motor driver is used in many different systems and businesses. Here are some ways that it could be used:

● Robotics

The A3983SLPTR-T is a good choice for robot applications because it can control motors with high accuracy. This motor driver makes sure that robot arms, manipulators, and mobile robots move exactly where they are supposed to and run smoothly.

● CNC Machines

In computer numerical control (CNC) machines, the A3983SLPTR-T makes it possible to control stepper motors precisely so that cutting tools can be placed and moved accurately. Because it works with different step stages, the machining process can be controlled in many different ways.

● Automation Systems

The A3983SLPTR-T is a great choice for many automation systems, such as conveyor systems, automatic assembly lines, and industrial machinery. It gives reliable motor control for precise moves, making automated processes more efficient and productive.

● Simplified Control Setups

The A3983SLPTR-T is a good choice when a complex computer is not available or is already being used too much. It doesn’t need phase sequence tables or high-frequency control lines because it has built-in translation and a simple control interface. This makes it a great choice for easy-to-use control systems where a simple motor driver is needed.

By using the A3983SLPTR-T’s features in robotics, CNC machines, automation systems, and other related applications, engineers and designers can get precise motor control, higher productivity, and easier control setups. This motor driver is useful in many systems that need accurate and efficient motor control because it can be used in many ways and is reliable.


The A3983SLPTR-T microstepping motor driver has tools for motor control projects that are flexible and easy to use. It is a good choice for many uses because it has a high output drive capacity, flexible step modes, and easy operation. Its automatic current decay control reduces motor noise and improves precision, and its internal synchronous rectification control helps power get rid of it faster. The low-profile package makes it easy to install and gets rid of heat quickly. Consider getting the A3983SLPTR-T from ICRFQ, a top distributor of electronic parts in China, to see what it can do for your motor control ideas.

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