A4970SLBTR-T

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A4970SLBTR-T

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IC MOTOR DRIVER BIPOLAR 24SOIC

  • HerstellerAllegro MicroSystems

  • Herstellerteil #A4970SLBTR-T

  • Auf Lager8554

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7*24 Stunden-Servicegarantie

90-Tage Kundendienstgarantie

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Spezifikationen

Attribut Wert
Part Status Active
Base Product Number A4970
Motor Type - Stepper Bipolar
Motor Type - AC, DC Brushed DC
Function Driver - Fully Integrated, Control and Power Stage
Output Configuration Half Bridge (4)
Interface On/Off
Technology DMOS
Applications General Purpose
Current - Output 750mA
Voltage - Supply 4.75V ~ 5.25V
Voltage - Load 7.45V ~ 45V
Operating Temperature -20°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package 24-SOIC (0.295", 7.50mm Width)
Supplier Device Package 24-SOIC
Packaging Cut Tape (CT), Tape & Reel (TR)

Übersicht

Description

The A4970SLBTR-T is a microstepping motor driver from Allegro Microsystems designed for precision control of bipolar stepper motors. It features a compact package suitable for applications requiring efficient space utilization. This driver operates from a supply voltage of 8 to 35 volts and can deliver up to 1.5 A per phase, making it suitable for various robotics and automation projects.
Key features include programmable current control, built-in thermal shutdown, and overcurrent protection, ensuring safe operation. The device supports full, half, quarter, and eighth stepping modes, allowing for smooth and quiet motion at low speeds. Additionally, it has an integrated decay mode control for optimal performance.
The A4970SLBTR-T is ideal for applications in 3D printers, CNC machines, and wearable devices where precise motor control and efficiency are critical. Its versatility and robustness make it a popular choice among engineers and developers in the field of motion control.

Equivalent

The A4970SLBTR-T is a bipolar stepper motor driver. Equivalent products include the A4988, DRV8825, and the TMC2208. These drivers also provide control for bipolar stepper motors, featuring microstepping capabilities and similar voltage/current ratings. Always check specific electrical characteristics and features to ensure compatibility for your application.

Features

The A4970SLBTR-T is a dual H-bridge motor driver specifically designed for driving bipolar stepper motors or DC motors. Key features include:
1. Voltage Range: Operates from 8 V to 35 V, allowing compatibility with various motor types.
2. Output Current: Capable of handling up to 1.5 A continuous output per channel with proper thermal management.
3. Microstepping Capability: Supports full-step to microstepping modes, enhancing precision in motor control.
4. Integrated Protection: Features include thermal shutdown, over-current protection, and under-voltage lockout to ensure safe operation.
5. Control Interface: Simple step and direction inputs for ease of integration with microcontrollers or PLCs.
6. High Efficiency: Designed for low PWM switching losses, improving thermal performance and reducing power consumption.
7. Compact Package: Offered in a small, surface-mount package, suitable for space-constrained applications.
Overall, the A4970SLBTR-T is ideal for robotics, automation, and various applications requiring precise motor control.

Pinout

The A4970SLBTR-T is a microstepping motor driver IC with a pin count of 16. It is designed for controlling bipolar stepper motors. The key functions of its pins include:
1. VM - Motor power supply input.
2. GND - Ground connection.
3. VREF - Reference voltage for controlling current.
4. DIR - Direction control input.
5. STEP - Step signal input for motor stepping.
6. ENABLE - Enables or disables the driver.
7. MS1, MS2 - Microstepping selection inputs (for setting the step resolution).
8. SLEEP - Puts the device into a low-power sleep mode.
9. FAULT - Indicates fault conditions.
10. NFAULT - Active low output for fault signaling.
The A4970SLBTR-T also includes built-in protection features such as overcurrent and thermal shutdown, making it suitable for various applications in motion control.

Manufacturer

The A4970SLBTR-T is manufactured by Allegro Microsystems. Allegro is a technology company that specializes in designing and manufacturing high-performance power and sensing solutions. Founded in 1990 and headquartered in Worcester, Massachusetts, Allegro focuses on automotive, industrial, and consumer markets. They are known for their innovation in semiconductor technologies, including integrated circuits for motor drivers, magnetic sensors, and power management solutions. The company emphasizes high-quality products that drive efficiency and performance in various applications, particularly in the automotive sector, where their components are integral to electric and hybrid vehicle technologies. Allegro Microsystems operates globally, serving a diverse range of industries through their advanced product offerings.

Application

The A4970SLBTR-T is a microstepping motor driver primarily used in applications such as 3D printers, CNC machines, and robotic systems. It provides control for bipolar stepper motors, allowing for precise movement and positioning. Its features include adjustable current control, built-in thermal protection, and low-power sleep modes, making it suitable for automated and low-power applications. Additionally, it can be employed in industrial automation, home automation systems, and other environments requiring accurate motion control.

Package

The A4970SLBTR-T is packaged in a 14-pin TSSOP (Thin Shrink Small Outline Package) format. This compact package type is designed for efficient thermal and electrical performance in applications like motor control and driver circuits.

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