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A3953SLB
PDSO16 Stepper Motor Controller, 1.3A, BIPolar, SOIC-16A3953SLB
PDSO16 Stepper Motor Controller, 1.3A, BIPolar, SOIC-16
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A3953SLB DataSheet
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Details
The A3953SLB is a motor driver IC designed for controlling and driving the operation of a motor. It is specifically designed for use with brushed DC (direct current) motors, which are commonly used in a wide range of applications.
Key Features
- Brushed DC Motor Driver: This IC is designed to drive brushed DC motors, which are widely used for their simplicity and versatility.
- PWM Control: It uses pulse-width modulation (PWM) for controlling the speed and direction of the motor.
- Current Sensing: Some versions of this IC include current sensing for accurate control of motor current.
- Protection Features: It may include protection features such as overcurrent and overtemperature protection.
- Dual Motor Outputs: Some versions of this IC are designed to control two brushed DC motors simultaneously.
Application
- Electric fans, pumps, and blowers for precise speed control.
- Automotive applications for controlling systems such as windshield wipers and power windows.
- Robotics for controlling the motion of robot wheels and actuators.
- Appliances for controlling the operation of various components, such as fans and motors.
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Product Name | A3953SLB | Product Type ! | Motor Driver IC |
| Manufacturer | Allegro Microsystems | Motor Type | Stepper Motor or DC Motor |
| Number of Motor Outputs | 2 | Supply Voltage | 5V to 30V |
| Package Type | Surface-Mount SOIC-16 | Operating Temperature Range ! | -40°C to 85°C |
Specification Comparison
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.
FAQs
What is A3953SLB?
The A3953SLB is a full-bridge PWM motor driver integrated circuit designed by Allegro MicroSystems. It is designed to drive DC motors with high efficiency and reliability, making it suitable for automotive, industrial, and consumer applications.
How Does A3953SLB Work?
The A3953SLB works by utilizing a full-bridge PWM architecture to control the speed and direction of DC motors. It incorporates internal power MOSFETs to drive the motor with high efficiency and low power dissipation. The device features thermal shutdown and overcurrent protection to ensure robust motor control.
How Many Pins does A3953SLB have and What are the Functions of the Pinout Configuration?
The A3953SLB is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- VBB: Bootstrap capacitor supply pin.
- VCP, V1, V2, V3: Motor power supply and output pins.
- IN1, IN2, IN3, IN4: Logic input pins for motor control.
- PGND: Power ground pin.
- FGND: Signal ground pin.
- RC: External timing resistor/capacitor pin for PWM frequency control.
- VREF: Voltage reference output for current regulation.
What are the Pros and Cons of A3953SLB?
Pros:
- Integrated Power MOSFETs: Eliminates the need for external MOSFETs, simplifying the motor driver design.
- Thermal Shutdown and Overcurrent Protection: Enhances reliability and safety in motor control applications.
- Wide Operating Voltage Range: Compatible with a wide range of motor voltage requirements.
- Internal PWM Control: Supports pulse-width modulation for precise motor speed control.
- Robust and Reliable: Built-in protection features ensure stable motor operation under various conditions.
Cons:
- Heat Dissipation: May require additional heat sinking in high-power motor applications.
- Complexity: Full-bridge motor drivers may have a steeper learning curve for inexperienced designers.
- External Components: Some applications may require additional external components such as capacitors and resistors for optimal performance.
Are There Any Equivalents/Alternatives to A3953SLB for Recommendation?
- The DRV8873 from Texas Instruments is a similar full-bridge motor driver with advanced features.
- Alternatives to the A3953SLB include the L298N from STMicroelectronics and the TB6612FNG from Toshiba.
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