• A3977SLP-T 28-TSSOP Exposed Pad
A3977SLP-T 28-TSSOP Exposed Pad

A3977SLP-T

Surface mount device TSSOP28

Inventory:7,681

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Overview of A3977SLP-T

The A3977SLP-T is a microstepping driver IC designed for controlling bipolar stepper motors.This IC offers precise current control and smooth motion profiles,making it ideal for applications requiring precise positioning and motion control.

Pinout

(Note:The pin configuration below is a general representation.Refer to the specific datasheet for precise details.)

  • GND:Ground connection
  • VBB:Boot capacitor high-side supply
  • VCP:Charge pump capacitor

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the A3977SLP-T IC for a visual representation.

Key Features

  • Microstepping Driver:The A3977SLP-T provides microstepping capabilities for smooth and precise motor control.
  • Precise Current Control:Offers accurate current control for optimal performance and power efficiency.
  • Thermal Shutdown Protection:Includes thermal shutdown circuitry to prevent overheating and ensure device safety.
  • Low RDS(ON):Features low on-resistance for efficient power conversion and minimal power losses.
  • Full, Half, and Microstep Modes:Supports multiple stepping modes for flexibility in motion control applications.

Note:For detailed technical specifications,please refer to the A3977SLP-T datasheet.

Application

  • 3D Printers:Suitable for precise control of stepper motors in 3D printing applications.
  • CNC Machines:Ideal for controlling motion in CNC machines and automated systems.
  • Robotics:Used in robotics for accurate positioning and movement tasks.

Functionality

The A3977SLP-T is a microstepping driver IC that enables precise control and smooth operation of bipolar stepper motors.Its advanced features make it a reliable choice for applications requiring accurate motion control.

Usage Guide

  • Power Supply:Connect VBB (Pin 2) to the high-side supply voltage and GND (Pin 1) to ground.
  • Motor Connections:Connect the phase outputs (nA, nB) to the stepper motor windings.
  • Control Inputs:Set the motor direction using nDIR and step the motor using nSTEP.

Frequently Asked Questions

Q:Can the A3977SLP-T drive high-current stepper motors?
A:The A3977SLP-T is designed to drive bipolar stepper motors with up to a certain current rating.For higher current motors,consider using external drivers or higher-rated ICs.

Q:Does the A3977SLP-T support daisy-chaining multiple motor controllers?
A:Yes,the A3977SLP-T can be cascaded or daisy-chained to control multiple stepper motors independently.

Equivalent

For similar functionalities,consider these alternatives to the A3977SLP-T:

  • DSPIC33CK256MP506:This is a digital signal controller from Microchip offering advanced motor control features for stepper motor applications.
  • TMC2208:This is a stepper motor driver IC from Trinamic with silent operation and advanced features for motion control applications.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Packaging Tube Part Status Obsolete
Motor Type - Stepper Bipolar Function Driver - Fully Integrated, Control and Power Stage
Output Configuration Half Bridge (4) Interface Logic
Technology DMOS Step Resolution 1, 1/2, 1/4, 1/8
Applications General Purpose Current - Output 2.5A
Voltage - Supply 3V ~ 5.5V Voltage - Load 8V ~ 35V
Operating Temperature -20°C ~ 150°C (TJ) Mounting Type Surface Mount
Package / Case 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Supplier Device Package 28-TSSOP-EP
Base Product Number A3977

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