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A3977SED The Allegro Microsystems A3977SED is a bipolar motor driver IC designed for general-purpose applications. It operates from 8V to 35V and handles up to 2.5A.
Mfr Part #:

A3977SED

Available from 4 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro Microsystems A3977SED is a bipolar motor driver IC designed for general-purpose applications. It operates from 8V to 35V and handles up to 2.5A.
✓ Total Stock: 4,902 pcs
$ Price Range: $2.25

A3977SED Available from 4 distributors

✓ Authorised
✓ Non-Authorised
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

A3977SED Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Function
Interface
Lead Style
Motor Type
Mounting Type
Operating Temperature
Output Configuration
SVHC Present
Step Resolution
Supplier Device Package
Technology
Voltage
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A3977SED Description

Short technical summary and product information.

The Allegro Microsystems A3977SED is an integrated motor driver IC featuring a fully integrated control and power stage. This DMOS technology device is designed for bipolar stepper motors and supports step resolutions of 1, 1/2, 1/4, and 1/8.

 

It operates within a voltage range of 8V to 35V and can deliver a continuous current of 2.5A. The IC is suitable for general-purpose applications and operates at temperatures between -20°C and 150°C (TJ). The interface is logic-level compatible.

 

The A3977SED is supplied in a 44-PLCC (J-Lead) surface mount package. Its output configuration includes four half-bridge drivers. The device is RoHS3 compliant, has an MSL of 1, and is REACH unaffected, though these compliance statuses are unverified.

A3977SED Quick Information

Product Type: Motor Driver IC
Canonical Name: A3977SED Motor Driver IC
Subcategory: Integrated Circuit

A3977SED Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

A3977SED Estimated Pricing

Qty Low High
1+ $2.25 $2.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

A3977SED Features

  • Integrated control and power stage.
  • Operates from 8V to 35V supply.
  • Handles 2.5A continuous current.
  • Supports bipolar stepper motors.
  • Surface mount 44-PLCC package.

A3977SED Applications

  • General-purpose bipolar stepper motor control.
  • Suitable for 3D printer motion systems.
  • Used in CNC machine axis drives.
  • Ideal for robotic actuator positioning.
  • Applicable in automated assembly equipment.

A3977SED FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the A3977SED?

The A3977SED operates from 8V to 35V.

What is the maximum current rating of the A3977SED?

The A3977SED is rated for 2.5A.

What package does the A3977SED come in?

The A3977SED is available in a 44-PLCC package.

What is the operating temperature range of the A3977SED?

The A3977SED operates from -20°C to 150°C junction temperature.

What step resolutions does the A3977SED support?

The A3977SED supports step resolutions of 1, 1/2, 1/4, and 1/8.

What type of motor is the A3977SED designed for?

The A3977SED is designed for bipolar stepper motors.

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