A3979SLPTR-T - Allegro MicroSystems

Manufacturer Part Number

A3979SLPTR-T

Manufacturer

Allegro MicroSystems

Introduction

A3979 is a fully integrated stepper motor driver with built-in control and power stages. It is designed to operate bipolar stepper motors in a wide range of applications.

Product Features and Performance

Integrated control and power stages

Supports bipolar stepper motors

Wide operating voltage range of 8V to 35V

Continuous output current up to 2.5A

Step resolutions of 1, 1/2, 1/4, and 1/16 steps

Microstepping with programmable step resolutions

Internal PWM and current regulation

Thermal shutdown protection

Overcurrent, overvoltage and undervoltage protection

Product Advantages

Fully integrated design reduces component count and simplifies system integration

Wide voltage and current capabilities support a variety of stepper motor applications

Programmable microstepping provides smooth motor operation

Robust protection features ensure reliable and safe operation

Key Technical Parameters

Supply Voltage: 3V to 5.5V

Output Current: 2.5A

Operating Temperature: -20°C to 150°C

Step Resolutions: 1, 1/2, 1/4, 1/16

Motor Type: Bipolar Stepper

Quality and Safety Features

RoHS3 compliant

Thermal shutdown protection

Overcurrent, overvoltage and undervoltage protection

Compatibility

Suitable for a wide range of bipolar stepper motors

Application Areas

General purpose stepper motor applications

Industrial automation

Motion control systems

Robotics

Medical equipment

Instrumentation

Product Lifecycle

The A3979 is an active product and is not nearing discontinuation.

Replacement or upgrade options may be available from Allegro MicroSystems or other manufacturers.

Key Reasons to Choose This Product

Fully integrated design simplifies system implementation

Wide voltage and current capabilities support a variety of stepper motor applications

Programmable microstepping provides smooth and precise motor control

Robust protection features ensure reliable and safe operation

Suitable for a wide range of industrial and general purpose stepper motor applications