A3977SEDTR-T - Allegro MicroSystems

Manufacturer Part Number

A3977SEDTR-T

Manufacturer

allegro-microsystems

Introduction

Power Management IC for Bipolar Stepper Motors

Product Features and Performance

Fully integrated driver for bipolar stepper motors

Half-bridge output configuration

Interface logic compatible

DMOS technology driven

Multiple step resolution settings: full, half, quarter, and eighth steps

Suitable for general-purpose stepper motor applications

Product Advantages

High current output capability up to 2.5A

Wide voltage supply range from 3V to 5.5V

Operates across a broad voltage load range of 8V to 35V

Can withstand high operating temperatures ranging from -20°C to 150°C

Key Technical Parameters

Motor Type - Stepper: Bipolar

Output Configuration: Half Bridge (4)

Interface: Logic

Step Resolution: 1, 1/2, 1/4, 1/8

Current - Output: 2.5A

Voltage - Supply: 3V ~ 5.5V

Voltage - Load: 8V ~ 35V

Operating Temperature: -20°C ~ 150°C (TJ)

Quality and Safety Features

High-temperature durability

Integrated power stages for reliability

Compatibility

Surface mount configuration

44-LCC (J-Lead) package

Application Areas

General-purpose stepper motor control applications

Product Lifecycle

Obsolete status

Availability of replacements or upgrades should be checked with the manufacturer or vendors

Several Key Reasons to Choose This Product

Suitable for applications requiring a high level of integration to reduce complexity

High-temperature endurance for demanding environments

Capable of driving a wide range of bipolar stepper motors

Compact surface mount package for space-constrained applications

Flexible step resolution catering to various precision requirements