A4973SLBTR-T

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A4973SLBTR-T

IC MTR DRV BIPOLAR 3-5.5V 16SOIC

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規格

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
MotorType-Stepper Bipolar
MotorType-ACDC Brushed DC
Function Driver - Fully Integrated, Control and Power Stage
OutputConfiguration Half Bridge (2)
Interface Parallel
Technology Power MOSFET
Applications General Purpose
Current-Output 1.5A
Voltage-Supply 3V ~ 5.5V
Voltage-Load 5V ~ 50V
OperatingTemperature -20°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 16-PowerSOIC (0.295, 7.50mm Width)

概述

Description

The A4973SLBTR-T is a specific part number for an integrated circuit (IC) from Allegro MicroSystems, typically used in motor driver applications. It is a full-bridge motor driver designed to control DC motors by providing the necessary current and direction control. The IC can often handle a wide range of voltages and current levels, making it versatile for various automotive and industrial applications. It usually features built-in protection mechanisms such as thermal shutdown, overcurrent protection, and under-voltage lockout to ensure reliability and safety. The A4973SLBTR-T is typically used in conjunction with microcontrollers or motor control systems that provide the necessary signals to dictate motor operation. Its compact form factor and robust design make it suitable for space-constrained applications requiring efficient motor control solutions.

Features

The A4973SLBTR-T is a microstepping motor driver IC designed for precise control of stepper motors. Key features include:
1. Microstepping Capability: This driver supports up to 16 microsteps per full step, allowing for smooth and precise motor control.
2. PWM Current Control: It employs Pulse Width Modulation (PWM) for controlling motor current, ensuring efficient performance with reduced heat generation.
3. Adjustable Reference Voltage: The device offers an adjustable reference voltage for setting the desired output current, providing flexibility in various applications.
4. Built-in Protection: It includes built-in protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout to ensure reliable operation.
5. Compact Package: The device is available in a compact package, suitable for space-constrained applications.
6. Wide Voltage Range: It supports a wide operating voltage range, enhancing its versatility in different applications.
7. Low RDS(on): The low on-resistance of the output drivers minimizes power loss, improving overall efficiency.
These features make the A4973SLBTR-T suitable for applications in printers, scanners, and other devices requiring precise motor control.

Package

The A4973SLBTR-T is a motor driver IC, and it typically comes in an SOIC (Small Outline Integrated Circuit) package. Specifically, it uses a surface-mount package type, which is suitable for automatic assembly and offers space-saving benefits on printed circuit boards.

Pinout

The A4973SLBTR-T is a full-bridge motor driver IC manufactured by Allegro MicroSystems. It is designed to drive brushless DC motors and stepper motors. The IC typically comes in a 24-pin SOIC package.
The main functions of the A4973SLBTR-T include:
1. Full-Bridge Output: It features full H-bridge outputs, suitable for driving bipolar stepper motors or two DC motors.
2. PWM Control: The IC supports pulse width modulation (PWM) for speed control.
3. Current Control: It includes built-in current sensing and control circuitry to manage the current through the motors.
4. Protection Features: The device incorporates thermal shutdown, undervoltage lockout, and cross-conduction protection.
5. Microstepping: It allows for microstepping control of stepper motors by varying the current through the coils.
The A4973SLBTR-T is typically used in applications such as robotics, automation, and other systems requiring precise motor control.

Manufacturer

The A4973SLBTR-T is manufactured by Allegro MicroSystems. Allegro MicroSystems is a company that specializes in developing, manufacturing, and marketing high-performance power and sensing semiconductor integrated circuits. Their products are used in a wide range of applications, including automotive, industrial, consumer, and energy-efficient systems. Allegro is known for its expertise in motor driver ICs, magnetic sensors, and power management solutions, making it a significant player in the semiconductor industry.

Application

The A4973SLBTR-T is a motor driver IC commonly used in various applications such as controlling stepper motors in printers, scanners, and industrial automation equipment. It is also utilized in robotics and other motion control systems where precise motor operation is required. The IC's ability to handle bipolar stepper motors makes it suitable for applications needing efficient speed and direction control.

Equivalent

The Allegro A4973SLBTR-T is a DMOS full-bridge motor driver IC. Equivalent products include the Texas Instruments DRV8833, ON Semiconductor LV8548MC, and STMicroelectronics L298. These alternatives offer similar functionalities such as dual H-bridge configurations for motor control, but specific features and performance can vary, so it's important to review their datasheets to ensure compatibility with your application.

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