A3959SLBTR-T

Name: A3959SLBTR-T
Brand: Allegro MicroSystems
Rating: 4.5 (10 reviews)
Author: Lisleapex

Full Bridge Motor Driver with Pulse Width Modulation

7,334 Effective Inventory

A3959SLBTR-T

Effective Inventory7,334

Full Bridge Motor Driver with Pulse Width Modulation

Manufacturer Part # : A3959SLBTR-T
Package/Case: SOIC-24
Brand: Allegro MicroSystems
Product Categories : Motor Drivers, Controllers
Series : A3959

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A3959SLBTR-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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A3959SLBTR-T Details

The A3959SLBTR-T is a motor driver IC designed for controlling bipolar stepper motors from Allegro Microsystems, offering a full-bridge PWM motor driver with overcurrent protection. This device features a wide voltage range, adjustable current control, and thermal shutdown protection, making it suitable for use in stepper motor and brush DC motor applications.

Key Features

Full-Bridge PWM Motor Driver: Designed for controlling bipolar stepper motors with overcurrent protection.
Wide Voltage Range: Operates over a wide voltage range, making it suitable for various applications.
Adjustable Current Control: Allows for adjustable current control to optimize motor performance.
Thermal Shutdown Protection: Features thermal shutdown protection to prevent damage from overheating.

Applications

Motor Control Applications: Ideal for driving bipolar stepper motors in printers, scanners, and other automation equipment.
Battery-Powered Devices: Suitable for use in battery-powered devices where low power consumption is critical.

Where to Use

The A3959SLBTR-T is suitable for applications that require a reliable motor driver IC, such as stepper motor control and brush DC motor control. It is ideal for use in industrial automation equipment, printers, scanners, and other devices where precise motor control is necessary.

How to Use

Connect the A3959SLBTR-T to your motor circuit by wiring the input pins to the respective motor terminals. Ensure proper power supply connections to VCC and GND. Use the enable pins to control the motor driver IC, and refer to the datasheet for specific operating conditions and limitations.

Application Circuit

The application circuit for the A3959SLBTR-T illustrates how to connect the motor driver IC to a stepper motor. It includes connections for power supply, ground, and motor terminals, ensuring proper operation and reliable motor control.

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

Complementary

The A3959SLBTR-T can be complemented by other Allegro Microsystems motor driver ICs, such as the A3975 or A3985, which offer similar features and performance for different applications.

When selecting complementary products, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum current output of the A3959SLBTR-T?

A: The A3959SLBTR-T has a maximum current output of 2.5A per phase, making it suitable for controlling stepper motors and brush DC motors.

Q: Can the A3959SLBTR-T be used in battery-powered devices?

A: Yes, the A3959SLBTR-T is designed for use in battery-powered devices where low power consumption is critical. It features a low standby current and adjustable current control to optimize motor performance.

Specifications

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

Product Name	A3959SLBTR-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 A3959SLBTR-T PDF Download

FAQs

What is A3959SLBTR-T?

The A3959SLBTR-T is a full-bridge PWM microstepping motor driver designed by Allegro Microsystems. It is specifically designed for driving bipolar stepper motors in various applications, such as 3D printers, CNC machines, and robotic systems.

How Does A3959SLBTR-T Work?

The A3959SLBTR-T works by receiving step and direction signals from a microcontroller and generating the necessary drive signals to control the movement of a bipolar stepper motor. It uses a PWM current control scheme to regulate the current in each motor winding, enabling smooth and precise motor control.

How Many Pins does A3959SLBTR-T have and What are the Functions of the Pinout Configuration?

The A3959SLBTR-T is housed in a 24-lead SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

VBB: High-side driver supply voltage.
OUT1A, OUT1Y, OUT2A, OUT2Y: Motor output pins for driving the stepper motor windings.
PHASE1, PHASE2: Phase inputs for the motor winding control.
AMPLITUDE: Controls the motor current amplitude.
VREF, RAFFLEXT, RBFFLEXT: Current sense and feedback pins.
RESET, SLEEP, STEP, DIR: Control and interface pins for operation.

What are the Pros and Cons of A3959SLBTR-T?

Pros:

Microstepping Capability: Allows for smooth and precise motor movements.
High Current Drive: Capable of driving high-current bipolar stepper motors.
Integrated Protection Features: Includes thermal shutdown and overcurrent protection.
Compact Package: The 24-lead SOIC package is space-efficient for PCB designs.

Cons:

Complexity: Requires understanding of stepper motor control principles for optimal performance.
External Components: May require additional components such as diodes and capacitors for motor operation.

Are There Any Equivalents/Alternatives to A3959SLBTR-T for Recommendation?

Alternatives to the A3959SLBTR-T include the DRV8825 from Texas Instruments and the A4988 from Allegro Microsystems.
Comparable motor drivers are the L297 and L298 combination from STMicroelectronics.