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Home  PMIC - Motor Drivers, Controllers  A3977KED Datasheets | PMIC - Motor Drivers, Controllers Bipolar Motor Driver DMOS Logic 44-PLCC (16.59x16.59)

Jan 5 2021

A3977KED Datasheets | PMIC - Motor Drivers, Controllers Bipolar Motor Driver DMOS Logic 44-PLCC (16.59x16.59)

Product Overview

Image:
A3977KED
Manufacturer Part#: A3977KED
Product Category: PMIC - Motor Drivers, Controllers
Stock: No
Manufacturer: Allegro MicroSystems
Description: Bipolar Motor Driver DMOS Logic 44-PLCC (16.59x16.59)
Datasheet: A3977
Package: 44-LCC (J-Lead)
Minimum: 1
Lead Time: 3(168 Hours)
Quantity: On Order
Send RFQ: Inquiry

A3977KED Images are for reference only.

A3977KED

CAD Models

Product Attributes

Package / Case: 44-LCC (J-Lead)
Function: Driver - Fully Integrated Control and Power Stage
Mfr: Allegro MicroSystems
Base Product Number: A3977
Supplier Device Package: 44-PLCC (16.59x16.59)
Applications: General Purpose
Technology: DMOS
Voltage - Supply: 3V ~ 5.5V
Interface: Logic
Current - Output: 2.5A
Motor Type - Stepper: Bipolar
Motor Type - AC DC: -
Output Configuration: Half Bridge (4)
Step Resolution: 1 1/2 1/4 1/8
Voltage - Load: 8V ~ 35V

Alternative Models

Part Compare Manufacturers Category Description
Mfr.Part#:A3977KED Compare: Current Part Manufacturers:Allegro MicroSystems Category:Motor Drivers Description: DMOS Stepper Motor Driver 5V 44Pin PLCC
Mfr.Part#:A3977SEDTR-T Compare: A3977KED VS A3977SEDTR-T Manufacturers:Allegro MicroSystems Category:Motor Drivers Description: ALLEGRO MICROSYSTEMS A3977SEDTR-T Motor Driver/Controller, Stepper, 3V to 5.5V supply, 35V/2.5A/2Outputs, LCC-44
Mfr.Part#:A3977SED Compare: A3977KED VS A3977SED Manufacturers:Allegro MicroSystems Category:Motor Drivers Description: DMOS Stepper Motor Driver 5V 44Pin PLCC
Mfr.Part#:A3977SED-T Compare: A3977KED VS A3977SED-T Manufacturers:Allegro MicroSystems Category:Motor Drivers Description: DMOS Stepper Motor Driver 5V 44Pin PLCC Tube

Descriptions

There is no relevant information available for this part yet.

FEATURES

MICROSTEPPING DMOS DRIVER WITH TRANSLATOR

The A3977xED and A3977xLP are complete microstepping motor drivers with built-in translator. They are designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes, with output drive capability of 35 V and ±2.5 A. The A3977 includes a fixed off-time current regulator that has the ability to operate in slow-, fast-, or mixed-decay modes. This currentdecay control scheme results in reduced audible motor noise, increased step accuracy, and reduced power dissipation.

The translator is the key to the easy implementation of the A3977. By simply inputting one pulse on the STEP input the motor will take one step (full, half, quarter, or eighth depending on two logic inputs). There are no phase-sequence tables, high-frequency control lines, or complex interfaces to program. The A3977 interface is an ideal fit for applications where a complex µP is unavailable or over-burdened.

FEATURES

■ ±2.5 A, 35 V Output Rating
■ Low rDS(on) Outputs, 0.45 Ω Source, 0.36 Ω Sink Typical
■ Automatic Current Decay Mode Detection/Selection
■ 3.0 V to 5.5 V Logic Supply Voltage Range
■ Mixed, Fast, and Slow Current Decay Modes
■ Home Output
■ Synchronous Rectification for Low Power Dissipation
■ Internal UVLO and Thermal Shutdown Circuitry
■ Crossover-Current Protection

Environmental & Export Classifications

Description Value
RoHS Status: RoHS non-compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected
ECCN: EAR99
HTSUS: 8542.39.0001

Documents & Media

Datasheets: A3977
HTML Datasheet: A3977

Product Manufacturer

Allegro MicroSystems is redefining the future of power and sensing technologies. From green energy to advanced mobility and motion control systems, their team is passionate about developing intelligent solutions that move the world forward and give our customers a competitive edge. With global engineering, manufacturing and support, Allegro is a trusted partner to both large enterprises and regional market leaders worldwide.

Distributors

Image PartNo Manufacturer Descriptions Stock Step Price
A3977KED A3977KED Allegro MicroSystems Bipolar Motor Driver DMOS Logic 44-PLCC (16.59x16.59) On Order

N/A

A3977KED A3977KED Allegro MicroSystems LLC Stepper Motor Controller, 2.5A, NMOS, PQCC44, BATWING, PLASTIC, LCC-44 On Order

N/A

Popularity by Region

  • 1. United States
    100
  • 2. Bhutan
    95
  • 3. Slovenia
    95
  • 4. South Korea
    94
  • 5. Sweden
    91
  • 6. Egypt
    90
  • 7. Brazil
    90
  • 8. United Kingdom
    82
  • 9. France
    82
  • 10. Mexico
    81
  • 11. China
    79
  • 12. Belarus
    77
  • 13. Switzerland
    77
  • 14. India
    77
  • 15. Australia
    77
  • 16. Turkey
    76
  • 17. Germany
    76
  • 18. Singapore
    76
  • 19. Japan
    75
  • 20. Netherlands
    75
  • 21. Saudi Arabia
    74
  • 22. Poland
    74
  • 23. Portugal
    74
  • 24. Russia
    73
  • 25. Colombia
    73
  • 26. Georgia
    72
  • 27. Philippines
    71
  • 28. Latvia
    70
  • 29. Vietnam
    69
  • 30. Taiwan
    65
  • 31. Hong Kong
    63

A3977KED Popularity by Region

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A3977KED
Bipolar Motor Driver DMOS Logic 44-PLCC (16.59x16.59)
  • Product Attributes
  • Descriptions
  • Features
  • CAD Models
Package / Case: 44-LCC (J-Lead)
Function: Driver - Fully Integrated Control and Power Stage
Mfr: Allegro MicroSystems
Base Product Number: A3977
Supplier Device Package: 44-PLCC (16.59x16.59)
Applications: General Purpose
Technology: DMOS
Voltage - Supply: 3V ~ 5.5V
Interface: Logic
Current - Output: 2.5A
Motor Type - Stepper: Bipolar
Motor Type - AC DC: -
Output Configuration: Half Bridge (4)
Step Resolution: 1 1/2 1/4 1/8
Voltage - Load: 8V ~ 35V

There is no relevant information available for this part yet.

FEATURES

MICROSTEPPING DMOS DRIVER WITH TRANSLATOR

The A3977xED and A3977xLP are complete microstepping motor drivers with built-in translator. They are designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes, with output drive capability of 35 V and ±2.5 A. The A3977 includes a fixed off-time current regulator that has the ability to operate in slow-, fast-, or mixed-decay modes. This currentdecay control scheme results in reduced audible motor noise, increased step accuracy, and reduced power dissipation.

The translator is the key to the easy implementation of the A3977. By simply inputting one pulse on the STEP input the motor will take one step (full, half, quarter, or eighth depending on two logic inputs). There are no phase-sequence tables, high-frequency control lines, or complex interfaces to program. The A3977 interface is an ideal fit for applications where a complex µP is unavailable or over-burdened.

FEATURES

■ ±2.5 A, 35 V Output Rating
■ Low rDS(on) Outputs, 0.45 Ω Source, 0.36 Ω Sink Typical
■ Automatic Current Decay Mode Detection/Selection
■ 3.0 V to 5.5 V Logic Supply Voltage Range
■ Mixed, Fast, and Slow Current Decay Modes
■ Home Output
■ Synchronous Rectification for Low Power Dissipation
■ Internal UVLO and Thermal Shutdown Circuitry
■ Crossover-Current Protection

There is no relevant information available for this part yet.