A4984SETTR-T

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A4984SETTR-T

IC MTR DRVR BIPOLAR 3-5.5V 32QFN

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
MotorType-Stepper Bipolar
Function Driver - Fully Integrated, Control and Power Stage
OutputConfiguration Half Bridge (4)
Interface Logic
Technology DMOS
StepResolution 1, 1/2, 1/4, 1/8
Applications General Purpose
Current-Output 2A
Voltage-Supply 3V ~ 5.5V
Voltage-Load 8V ~ 35V
OperatingTemperature -20°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 32-VFQFN Exposed Pad

Overview

Description

The A4984SETTR-T is a microstepping motor driver designed by Allegro Microsystems. It's used primarily to control bipolar stepper motors, making it ideal for applications requiring precise and smooth motion control. The device operates with a supply voltage ranging from 8V to 35V and provides an output drive capacity of up to 35V and ±2A.
One of the key features of the A4984 is its ability to control the stepper motor in full, half, quarter, and sixteenth-step modes, which enhances motion precision and minimizes mechanical noise and vibration. It integrates a fixed off-time current regulator, which helps limit the current through the motor windings, preventing overheating and ensuring consistent performance.
The A4984 also includes built-in protection features such as over-temperature shutdown, under-voltage lockout, and crossover-current protection, ensuring reliable operation even in demanding conditions. Its compact design, typically available in an eTSSOP 20-pin package, makes it suitable for space-constrained applications such as 3D printers, CNC machines, and other automation equipment.

Features

The A4984SETTR-T is a microstepping motor driver IC designed for driving bipolar stepper motors. Key features include:
1. Microstepping: Supports full, half, quarter, and eighth-step modes for precise control of motor movements.
2. Current Control: Features a fixed off-time current regulation scheme, allowing adjustable current decay modes to optimize performance.
3. Low RDS(on): Provides low output on-resistance, which helps reduce power dissipation and improve efficiency.
4. Protection Features: Includes built-in protection against over-current, thermal shutdown, and under-voltage lockout to enhance reliability and prevent damage.
5. Input Logic: Compatible with 3.3V and 5V logic, making it versatile for integration into various systems.
6. Compact Package: Available in a surface-mount package, making it suitable for space-constrained applications.
7. Thermal Efficiency: Designed with a thermal shutdown circuit to protect against overheating, ensuring stable operation in demanding environments.
The A4984SETTR-T is commonly used in applications requiring precise stepper motor control, such as 3D printers, CNC machines, and other automated equipment.

Package

The A4984SETTR-T is a microstepping motor driver IC from Allegro MicroSystems. It comes in a surface-mount package type known as TSSOP (Thin Shrink Small Outline Package), specifically a 24-lead TSSOP with exposed thermal pad for better heat dissipation.

Pinout

The A4984SETTR-T is a microstepping motor driver IC produced by Allegro Microsystems. It is specifically designed to control bipolar stepper motors and features a total of 28 pins. The A4984 allows for driving stepper motors in full, half, quarter, and eighth-step modes, providing precise control over motor movement.
Key functions include:
1. Microstepping: Allows stepping in smaller increments for smoother motion and better positioning accuracy.
2. Current Control: Features adjustable current control to manage motor power consumption efficiently.
3. Protection Features: Includes thermal shutdown, under-voltage lockout, and crossover-current protection to enhance reliability and safety.
4. PWM Control: Uses a fixed off-time PWM current regulator for precise current management in the motor coils.
The A4984 is widely used in applications such as 3D printers, robotics, and other motion control systems, where precise control of a stepper motor is required.

Manufacturer

The A4984SETTR-T is manufactured by Allegro MicroSystems. Allegro MicroSystems is a company specializing in the development and production of high-performance power and sensor semiconductors. They focus on providing advanced solutions for motion control, energy-efficient systems, and automotive applications. Allegro's products are widely used in industries such as automotive, industrial, consumer electronics, and renewable energy. The company is known for its innovation in magnetic sensor ICs and power integrated circuits, which help in improving the performance and efficiency of electronic systems.

Application

The A4984SETTR-T is a microstepping motor driver designed for precise control of bipolar stepper motors. Key application areas include 3D printers, CNC machines, robotics, and automated manufacturing equipment. It is ideal for applications requiring fine control of motor movement and reduced vibration, such as in medical devices, surveillance cameras, and precision instrumentation. Its compact design and integrated features make it suitable for consumer electronics and small-scale motion control systems.

Equivalent

The A4984SETTR-T is a microstepping motor driver. Equivalent products include the TI DRV8825, Onsemi AMIS-30543, and Trinamic TMC2208. These drivers provide similar functionalities, such as microstepping, current control, and overcurrent protection. However, always check the datasheets for specific features and compatibility with your application.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

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