A3977SLPTR

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A3977SLPTR

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IC MTR DRV BIPOLR 3-5.5V 28TSSOP

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Spezifikationen

Attribut Wert
PartStatus Obsolete
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 2.5A
Voltage-Supply 3V ~ 5.5V
Voltage-Load 8V ~ 35V
OperatingTemperature -20°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 28-TSSOP (0.173", 4.40mm Width) Exposed Pad
SupplierDevicePackage 28-TSSOP-EP
BaseProductNumber A3977

Übersicht

Description

A3977SLPTR is a linear stepper motor driver IC designed by Allegro Microsystems, specifically tailored for driving bipolar stepper motors. It incorporates advanced features to enhance performance, including microstepping capability, which allows for smoother and more precise motor control. The A3977SLPTR supports a wide supply voltage range and provides built-in current regulation, enabling efficient operation while minimizing heat generation.
Key features include adjustable current control, overcurrent protection, and thermal shutdown, ensuring reliability during operation. The device can operate in various modes, such as full-step, half-step, and microstepping, making it versatile for different applications. It is commonly used in robotics, CNC machines, and various automation systems due to its ability to provide precise control over motor movements.
The A3977SLPTR is available in a compact package, facilitating easy integration into electronic designs, and is suitable for applications requiring high performance and efficiency in motor control.

Equivalent

The A3977SLPTR is a stepper motor driver from Allegro Microsystems. Equivalent products include the DRV8825 from Texas Instruments, the A4988 from Allegro, and the L298N from STMicroelectronics. Each alternative has different specifications and features, so it's essential to review the datasheets for compatibility based on voltage, current ratings, and control methods.

Features

The A3977SLPTR is a high-performance bipolar stepper motor driver designed for efficient control of stepper motors in various applications. Key features include:
1. Voltage Range: Operates from 8 V to 35 V, making it suitable for a variety of stepper motors.
2. Current Control: Features adjustable current control with a maximum output of 2 A per phase, allowing for precise motor control.
3. Microstepping: Supports up to 16 microsteps per step, enabling smoother operation and reduced vibration.
4. Integrated Protection: Includes built-in thermal shutdown, overcurrent protection, and undervoltage lockout, enhancing reliability and safety.
5. Simple Interface: Easy-to-use control interface with step and direction inputs.
6. Compact Package: Available in a small, surface-mounted package, facilitating space-constrained designs.
Overall, the A3977SLPTR provides a robust solution for driving stepper motors in robotics, automation, and other precision applications.

Pinout

The A3977SLPTR is a bipolar stepper motor driver IC with a 16-pin TSSOP (Thin Shrink Small Outline Package) configuration. It is designed to drive bipolar stepper motors with microstepping capability.
Pin Count: 16 pins
Key Functions:
1. VM (Power Supply): Connects to the motor supply voltage.
2. GND: Ground reference.
3. NFAULT: Fault indicator output.
4. RESET: Resets the internal logic.
5. STEP: Input for clock pulses to control motor steps.
6. DIR: Direction control input.
7. M0, M1, M2: Microstepping resolution control pins.
8. RMS (Current Control): Sets the motor driver current limit.
9. SLEEP: Low-power mode control.
10. PWM: Controls PWM frequency for motor operation.
11. CSP/CSN: Current sense pins.
This IC facilitates smooth and efficient motor control, making it suitable for various applications, including robotics and CNC machinery.

Manufacturer

The A3977SLPTR is manufactured by Allegro Microsystems, LLC. Allegro is a semiconductor company that specializes in designing and manufacturing high-performance analog and mixed-signal integrated circuits. Their products are primarily used in automotive, industrial, and consumer applications, focusing on power management, motor control, and sensor interfaces. With a strong emphasis on innovation and quality, Allegro serves a diverse range of markets, providing solutions that enhance efficiency and performance in electronic systems.

Application

The A3977SLPTR is a versatile microstepping motor driver designed for controlling bipolar stepper motors. Its application areas include robotics, CNC machinery, 3D printers, and automation systems. It supports precise movement and positioning, making it ideal for devices requiring fine control, such as medical equipment and manufacturing tools. Additionally, it is used in automotive applications for power seats and throttle control, as well as in consumer electronics for printers and scanners. The driver integrates current control and thermal protection features, enhancing performance and reliability across these applications.

Package

The A3977SLPTR is packaged in a 28-pin TSSOP (Thin Shrink Small Outline Package) format.

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