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HomeProductsIntegrated Circuits (ICs)PMIC - Motor Drivers, ControllersA3977SED-T
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A3977SED-T - Allegro MicroSystems

Manufacturer Part Number
A3977SED-T
Manufacturer
Allegro MicroSystems
Allelco Part Number
32D-A3977SED-T
ECAD Model
Parts Description
IC MTR DRVR BIPOLR 3-5.5V 44PLCC
Detailed Description
Package
44-LCC (J-Lead)
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
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Specifications

A3977SED-T Tech Specifications
Allegro MicroSystems - A3977SED-T technical specifications, attributes, parameters and parts with similar specifications to Allegro MicroSystems - A3977SED-T

Product Attribute Attribute Value  
Manufacturer Allegro MicroSystems  
Voltage - Supply 3V ~ 5.5V  
Voltage - Load 8V ~ 35V  
Technology DMOS  
Supplier Device Package 44-PLCC (16.59x16.59)  
Step Resolution 1, 1/2, 1/4, 1/8  
Series -  
Package / Case 44-LCC (J-Lead)  
Package Tube  
Output Configuration Half Bridge (4)  
Product Attribute Attribute Value  
Operating Temperature -20°C ~ 150°C (TJ)  
Mounting Type Surface Mount  
Motor Type - Stepper Bipolar  
Motor Type - AC, DC -  
Interface Logic  
Function Driver - Fully Integrated, Control and Power Stage  
Current - Output 2.5A  
Base Product Number A3977  
Applications General Purpose  

Parts Introduction

Manufacturer Part Number

A3977SED-T

Manufacturer

Allegro Microsystems

Introduction

The A3977SED-T is a stepper motor driver with integrated control and power stages.

Product Features and Performance

Fully integrated driver for bipolar stepper motors

Half Bridge (4) output configuration

DMOS technology for efficient power control

Supports multiple step resolutions: full, 1/2, 1/4, 1/8 steps

Product Advantages

Enables precise motor control

High-temperature operational range

Compact 44-LCC surface-mount packaging

Key Technical Parameters

5A output current capability

3V to 5.5V supply voltage range

8V to 35V motor load voltage

Up to 150°C operating temperature

Quality and Safety Features

Built-in thermal shutdown features

Overcurrent protection

Compatibility

Suitable for a variety of bipolar stepper motors

Logic interface for ease of control connectivity

Application Areas

General purpose stepper motor applications across various industries such as automation, robotics, and printers

Product Lifecycle

Obsolete status

Potential for limited availability

Consider looking for replacements or upgrades

Several Key Reasons to Choose This Product

High integration for space and cost savings

Performance tailored for robust stepper motor control

Allegro Microsystems' reputation for reliable, high-quality power management components

Ability to operate in demanding environmental conditions

Parts with Similar Specifications

The three parts on the right have similar specifications to Allegro MicroSystems A3977SED-T

Product Attribute A3977SED-T A3979SLPTR-T A3977KED-T A3977KEDTR-T
Part Number A3977SED-T A3979SLPTR-T A3977KED-T A3977KEDTR-T
Manufacturer Allegro MicroSystems Allegro MicroSystems Allegro MicroSystems Allegro MicroSystems
Interface Logic Logic Logic Logic
Series - - - -
Function Driver - Fully Integrated, Control and Power Stage Driver - Fully Integrated, Control and Power Stage Driver - Fully Integrated, Control and Power Stage Driver - Fully Integrated, Control and Power Stage
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Operating Temperature -20°C ~ 150°C (TJ) -20°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ)
Voltage - Supply 3V ~ 5.5V 3V ~ 5.5V 3V ~ 5.5V 3V ~ 5.5V
Voltage - Load 8V ~ 35V 8V ~ 35V 8V ~ 35V 8V ~ 35V
Base Product Number A3977 A3979 A3977 A3977
Motor Type - AC, DC - - - -
Applications General Purpose General Purpose General Purpose General Purpose
Output Configuration Half Bridge (4) Half Bridge (4) Half Bridge (4) Half Bridge (4)
Package Tube Tape & Reel (TR) Tube Tape & Reel (TR)
Step Resolution 1, 1/2, 1/4, 1/8 1, 1/2, 1/4, 1/16 1, 1/2, 1/4, 1/8 1, 1/2, 1/4, 1/8
Supplier Device Package 44-PLCC (16.59x16.59) 28-TSSOP-EP 44-PLCC (16.59x16.59) 44-PLCC (16.59x16.59)
Technology DMOS DMOS DMOS DMOS
Motor Type - Stepper Bipolar Bipolar Bipolar Bipolar
Package / Case 44-LCC (J-Lead) 28-TSSOP (0.173', 4.40mm Width) Exposed Pad 44-LCC (J-Lead) 44-LCC (J-Lead)
Current - Output 2.5A 2.5A 2.5A 2.5A

A3977SED-T Datasheet PDF

Download A3977SED-T pdf datasheets and Allegro MicroSystems documentation for A3977SED-T - Allegro MicroSystems.

PCN Packaging
Tape Change 27/Jan/2023.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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A3977SED-T Image

A3977SED-T

Allegro MicroSystems
32D-A3977SED-T

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