A4970SLBTR-T

Name: A4970SLBTR-T
Brand: Allegro MicroSystems
Rating: 4.5 (10 reviews)
Author: Lisleapex

Lead-free brushless motor controller

6,829 Effective Inventory

A4970SLBTR-T

Effective Inventory6,829

Lead-free brushless motor controller

Manufacturer Part # : A4970SLBTR-T
Package/Case: SOICWide-24
Brand: Allegro MicroSystems
Product Categories : Motor Drivers, Controllers
Series : A4970

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Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

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Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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Maintain the goods in their original condition as received.

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A4970SLBTR-T DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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A4970SLBTR-T Details

The A4970SLBTR-T is a full-bridge PWM microstepping motor driver from Allegro Microsystems, designed for precise and efficient motor control in various applications. This driver offers a wide range of current control options and microstepping resolutions, making it ideal for robotics, 3D printers, and other motion control systems.

Pinout

1 (VREF): Reference Voltage Output
2 (VCP1): Charge Pump Capacitor Connection 1
3 (nCSO): Chip Select Output
4 (nCSA): Chip Select A Input
5 (nCSB): Chip Select B Input
6 (GND): Ground
7 (OUTA): Output A
8 (OUTB): Output B
9 (SR): Sleep/Reset
10 (VCP2): Charge Pump Capacitor Connection 2
11 (VS): Supply Voltage
12 (VCP3): Charge Pump Capacitor Connection 3
13 (VCP4): Charge Pump Capacitor Connection 4

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Microstepping Control: Allows for smooth and precise motor movements.
Full-Bridge Configuration: Supports bidirectional motor control.
Integrated Charge Pump: Simplifies external component requirements.
Programmable Current Control: Offers flexibility in motor current settings.
Fault Detection: Includes diagnostics for overtemperature and undervoltage conditions.

Application

Robotics: Ideal for controlling stepper motors in robotic systems.
3D Printers: Used for precise motion control in 3D printing applications.
CNC Machines: Suitable for motor control in computer numerical control machines.

Where to Use

The A4970SLBTR-T is suitable for applications requiring precise and efficient motor control, such as robotics, 3D printers, and CNC machines. It offers advanced features for smooth motion control and high accuracy.

How to Use

Connect the A4970SLBTR-T to your motor system by configuring the appropriate pins for microstepping resolution and current control. Ensure proper power supply connections and implement fault detection mechanisms for reliable operation. Refer to the datasheet for detailed usage instructions and setup guidelines.

Application Circuit

The application circuit diagram for the A4970SLBTR-T illustrates how to integrate the motor driver into your system for optimal performance. It includes connections for power supply, motor outputs, and control inputs, ensuring smooth and precise motor control.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

A4988: A comparable PWM microstepping motor driver with similar features and functionality.
DSPIC33EV256GM104: An alternative microcontroller for motor control applications.

Complementary

The A4970SLBTR-T can be complemented by the A4979SLBTR-T, offering higher current handling capabilities and additional fault protections for more demanding motor control applications.

When selecting complementary components, ensure compatibility and performance alignment with your specific system requirements.

Frequently Asked Questions

Q: What is the maximum microstepping resolution supported by the A4970SLBTR-T?

A: The A4970SLBTR-T supports microstepping resolutions up to 1/16 steps. Refer to the datasheet for detailed configuration options and step modes.

Q: Can the A4970SLBTR-T be used in battery-powered devices?

A: Yes, the A4970SLBTR-T is designed for low-power operation and can be used in battery-powered applications with appropriate power management considerations.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Name	A4970SLBTR-T	Product Type !	Motor Driver IC
Manufacturer	Allegro Microsystems	Motor Type	Stepper Motor or DC Motor
Number of Motor Outputs	2	Supply Voltage	5V to 50V
Package Type	Surface-Mount SOIC-16	Operating Temperature Range !	-40°C to 85°C

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification A4970SLBTR-T PDF Download

FAQs

What is A4970SLBTR-T?

The A4970SLBTR-T is a dual full-bridge PWM microstepping motor driver designed by Allegro Microsystems. It is used for driving bipolar stepper motors in applications such as 3D printers, CNC machines, robotics, and precision motion control systems.

How Does A4970SLBTR-T Work?

The A4970SLBTR-T works by converting low-power digital signals from a microcontroller or motion control system into high-power currents required to drive the stepper motor windings. It provides microstepping capability for smoother and more precise motor control, allowing for finer position and speed adjustments.

How Many Pins does A4970SLBTR-T have and What are the Functions of the Pinout Configuration?

The A4970SLBTR-T is housed in a 24-pin QSOP (Quarter Size Outline Package) package. The pinout configuration includes:

VBB1, VBB2: Bootstrap voltage supply pins for the high-side power MOSFETs.
OUT1A, OUT1B, OUT2A, OUT2B: Output pins for the stepper motor windings.
RESET, ENABLE: Control input pins for reset and enable functions.
CP1, CP2: Charge pump input pins for bootstrap capacitor charge pump.
VREF1, VREF2: Reference voltage input pins for the internal PWM current control.
1A, 1B, 2A, 2B: Logic level inputs for controlling the motor current and microstepping settings.

What are the Pros and Cons of A4970SLBTR-T?

Pros:

Microstepping Capability: Provides smooth and precise motor control for applications requiring fine motion adjustments.
High Power Output: Capable of driving bipolar stepper motors with high-power currents.
Thermal Shutdown and Overcurrent Protection: Includes protection features to safeguard the driver and motor from faults or overloads.
Compact Package: The 24-pin QSOP package offers a space-efficient solution for motor driver applications.

Cons:

External Components: May require additional external components such as capacitors and resistors for optimal motor control.
Complexity: Requires understanding of stepper motor control and power electronics for proper integration and operation.

Are There Any Equivalents/Alternatives to A4970SLBTR-T for Recommendation?

The DRV8825 from Texas Instruments is a similar microstepping motor driver with additional features such as adjustable current control.
Alternatives to the A4970SLBTR-T include the A4988 from Allegro Microsystems and the TB6600 from Toshiba.