A3988SEVTR-T

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A3988SEVTR-T

IC MTR DRVR BIPOLAR 3-5.5V 36QFN

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Thông số kỹ thuật

Part Status Not For New Designs
Base Product Number A3988
Motor Type - Stepper Bipolar
Motor Type - AC, DC Brushed DC
Function Driver - Fully Integrated, Control and Power Stage
Output Configuration Half Bridge (8)
Interface Parallel
Technology DMOS
Step Resolution 1, 1/2, 1/4
Applications General Purpose
Current - Output 1.2A
Voltage - Supply 3V ~ 5.5V
Voltage - Load 8V ~ 36V
Operating Temperature -20°C ~ 85°C (TA)
Mounting Type Surface Mount
Package 36-VFQFN Exposed Pad
Supplier Device Package 36-QFN (6x6)
Packaging Cut Tape (CT), Tape & Reel (TR)

Tổng quan

Description

The A3988SEVTR-T is a stepper motor driver IC developed by Allegro Microsystems. It's designed to control bipolar stepper motors in full, half, quarter, and eighth-step modes, making it versatile for various precision motor control applications. The driver incorporates a built-in translator for easy operation, requiring only step and direction signals to manage motor movement.
Key features of the A3988SEVTR-T include adjustable current control through a potentiometer or external voltage and the ability to handle motor voltages from 8 to 35 volts. It also includes microstepping capabilities to enhance motion smoothness and increase positional accuracy. Protection features such as thermal shutdown, under-voltage lockout, and cross-current protection enhance its reliability and safety during operation.
This IC is commonly used in applications like 3D printers, CNC machines, and robotics, where precise motor control is crucial. Its compact design and efficiency make it suitable for embedded applications where space and power consumption are critical factors.

Features

The A3988SEVTR-T is a microstepping motor driver designed for precision control of stepper motors. Key features include:
1. Microstepping Control: It supports up to 16 microsteps per full step, allowing for smooth and precise motor control.
2. Output Drive Capacity: The driver can deliver up to 35V and ±2A output current, making it suitable for a wide range of stepper motors.
3. Built-in Translator: The device has an internal translator for easy operation, reducing the need for complex microcontroller interface programming.
4. Current Control: It includes adjustable current control through a reference voltage, allowing for flexibility in motor operation and power management.
5. Protection Features: The A3988SEVTR-T comes with various protection mechanisms, including overcurrent protection, thermal shutdown, and under-voltage lockout.
6. Low Quiescent Current: It features low power consumption in standby mode, which is beneficial for battery-powered applications.
7. Compact Package: The device is available in a compact package, making it suitable for applications with space constraints.
These features make the A3988SEVTR-T an ideal choice for applications requiring efficient and precise stepper motor control.

Package

The A3988SEVTR-T is a motor driver IC manufactured by Allegro MicroSystems. It typically comes in a 28-lead TSSOP (Thin Shrink Small Outline Package) with an exposed pad for enhanced thermal dissipation.

Pinout

The A3988SEVTR-T is a stepper motor driver IC from Allegro MicroSystems. It features a 24-pin package. The primary function of the A3988 is to control bipolar stepper motors by providing microstepping capabilities. The device offers features like current control, overcurrent protection, and thermal shutdown. Its microstepping capabilities allow for smooth operation and enhanced precision. This IC is designed to drive two H-bridges with the necessary logic to control a stepper motor efficiently.

Manufacturer

The A3988SEVTR-T is manufactured by Allegro MicroSystems. Allegro MicroSystems is a company known for designing, developing, and manufacturing high-performance power and sensing semiconductor solutions. They specialize in providing innovative solutions for motion control, energy-efficient systems, and automotive applications. The company is recognized for their expertise in integrating mixed-signal ICs and advanced technologies to meet the needs of various industries, including automotive, industrial, and consumer electronics.

Application

The A3988SEVTR-T is a microstepping motor driver designed for precision control of stepper motors. Its key application areas include 3D printers, CNC machines, and robotics, where precise motor control is essential. Additionally, it can be used in automated manufacturing equipment, surveillance cameras, and any application requiring smooth and accurate stepper motor movement. Its ability to handle microstepping provides for finer control and quieter operation, making it suitable for high-precision tasks.

Equivalent

The A3988SEVTR-T is a microstepping motor driver IC from Allegro Microsystems. Equivalent products include:
1. DRV8825 from Texas Instruments
2. A4988 from Allegro Microsystems
3. TB67S128FTG from Toshiba
4. M5451 from STMicroelectronics
These alternatives offer similar functionality in driving stepper motors with varying degrees of microstepping, current control, and protection features. Always check the datasheets for compatibility with your specific application requirements.

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