A3955SLB
Integrated Circuit for Motor ControlA3955SLB
Integrated Circuit for Motor Control
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Manufacturer Part # : A3955SLB
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Package/Case: SOP-16
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Brand: Allegro Microsystems
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Product Categories : Motor Drivers, Controllers
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Service & Packaging
Service & Packaging
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A3955SLB DataSheet
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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The A3955SLB 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.
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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.
- Versatile I/Os: It typically has a variety of input and output pins for interfacing with external devices.
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 | A3955SLB | 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.
FAQs
What is A3955SLB?
The A3955SLB is a full-bridge PWM motor driver IC designed by Allegro MicroSystems. It is primarily used for controlling the speed and direction of DC motors, stepper motors, and other motor applications.
How Does A3955SLB Work?
The A3955SLB works by receiving control signals to adjust the motor speed and direction. It incorporates a full-bridge architecture along with PWM (Pulse Width Modulation) control to drive the motor efficiently. The device can handle high-current applications, making it suitable for driving motors with varying load conditions.
How Many Pins does A3955SLB have and What are the Functions of the Pinout Configuration?
The A3955SLB is typically available in a 16-pin SOIC package. The pinout configuration includes:
- VBB: Bootstrap capacitor high-voltage supply pin.
- GND: Ground pin.
- PWM A, PWM B: PWM input pins for motor speed control.
- DIR A, DIR B: Direction control pins.
- OUT A, OUT B: Motor output pins.
- Sleep: Sleep mode control input.
What are the Pros and Cons of A3955SLB?
Pros:
- High Current Capability: Capable of driving motors with high current requirements.
- Full-Bridge Architecture: Enables bidirectional control of motors for various applications.
- PWM Control: Allows precise speed control of motors through pulse width modulation.
- Thermal Shutdown Protection: Includes thermal shutdown feature to prevent overheating.
Cons:
- External Components: May require external components such as bootstrap capacitors for optimal performance.
- Complexity: Understanding the full-bridge operation and control signals may require some technical knowledge.
- Cost: Higher cost compared to simpler motor driver solutions.
Are There Any Equivalents/Alternatives to A3955SLB for Recommendation?
- Alternatives to the A3955SLB include the L298N dual H-bridge motor driver and the DRV8825 stepper motor driver.
- The A3967 from Allegro MicroSystems is a similar motor driver IC worth considering as an alternative.
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