規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| MotorType-Stepper | Bipolar |
| Function | Driver - Fully Integrated, Control and Power Stage |
| OutputConfiguration | Half Bridge (2) |
| Interface | Parallel |
| Technology | Power MOSFET |
| StepResolution | 1, 1/2, 1/4, 1/8 |
| Applications | General Purpose |
| Current-Output | 1.5A |
| Voltage-Supply | 4.5V ~ 5.5V |
| Voltage-Load | 5V ~ 50V |
| OperatingTemperature | -20°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-PowerSOIC (0.295, 7.50mm Width) |
概述
Description
The A4975SLBTR-T is a microstepping motor driver IC developed by Allegro MicroSystems. It is designed for driving bipolar stepper motors and offers precise control with microstepping capabilities. This IC integrates a fixed off-time pulse-width modulation (PWM) current control scheme, which allows for reduced power dissipation in the motor and enhanced performance.
The device can handle output currents up to 2.5 A and operates within a supply voltage range of 8 V to 50 V. It features built-in protection mechanisms, including thermal shutdown, undervoltage lockout, and crossover-current protection, ensuring safe and reliable operation.
The A4975SLBTR-T supports full, half, quarter, and eighth-step microstepping, providing smooth motion control for applications requiring high-precision movement. Its compact design is suited for various applications, such as printers, automated machinery, and other equipment utilizing stepper motors.
Overall, the A4975SLBTR-T is a versatile and efficient solution for developers seeking to implement precise motor control in their projects.
The device can handle output currents up to 2.5 A and operates within a supply voltage range of 8 V to 50 V. It features built-in protection mechanisms, including thermal shutdown, undervoltage lockout, and crossover-current protection, ensuring safe and reliable operation.
The A4975SLBTR-T supports full, half, quarter, and eighth-step microstepping, providing smooth motion control for applications requiring high-precision movement. Its compact design is suited for various applications, such as printers, automated machinery, and other equipment utilizing stepper motors.
Overall, the A4975SLBTR-T is a versatile and efficient solution for developers seeking to implement precise motor control in their projects.
Equivalent
The A4975SLBTR-T is a dual full-bridge motor driver. Equivalent products may include:
1. Texas Instruments DRV8825: A stepper motor driver with similar capabilities.
2. STMicroelectronics L298N: A dual full-bridge motor driver often used for similar applications.
3. Toshiba TB6612FNG: Another motor driver IC supporting dual H-bridge operation.
It's essential to compare specific electrical characteristics and pin configurations to ensure compatibility.
1. Texas Instruments DRV8825: A stepper motor driver with similar capabilities.
2. STMicroelectronics L298N: A dual full-bridge motor driver often used for similar applications.
3. Toshiba TB6612FNG: Another motor driver IC supporting dual H-bridge operation.
It's essential to compare specific electrical characteristics and pin configurations to ensure compatibility.
Features
The A4975SLBTR-T is a motor driver IC designed to control bipolar stepper motors. Key features include:
1. Dual Full-Bridge Output: It provides two full-bridge outputs, enabling it to drive a single bipolar stepper motor.
2. Microstepping Capability: The IC supports microstepping, allowing for smoother motor operation and precise control.
3. Current Control: It features internal fixed off-time PWM current control, which helps in maintaining consistent torque and minimizing power loss.
4. Protection Features: The A4975SLBTR-T includes thermal shutdown, under-voltage lockout, and crossover-current protection to enhance reliability and prevent damage.
5. Wide Voltage Range: It operates over a wide voltage range, typically from 7.5V to 50V, making it versatile for various applications.
6. Compact Package: It is available in a compact surface-mountable package, suitable for PCB designs where space is a constraint.
These features make the A4975SLBTR-T suitable for applications requiring efficient and reliable motor control, such as in printers, scanners, and other automated equipment.
1. Dual Full-Bridge Output: It provides two full-bridge outputs, enabling it to drive a single bipolar stepper motor.
2. Microstepping Capability: The IC supports microstepping, allowing for smoother motor operation and precise control.
3. Current Control: It features internal fixed off-time PWM current control, which helps in maintaining consistent torque and minimizing power loss.
4. Protection Features: The A4975SLBTR-T includes thermal shutdown, under-voltage lockout, and crossover-current protection to enhance reliability and prevent damage.
5. Wide Voltage Range: It operates over a wide voltage range, typically from 7.5V to 50V, making it versatile for various applications.
6. Compact Package: It is available in a compact surface-mountable package, suitable for PCB designs where space is a constraint.
These features make the A4975SLBTR-T suitable for applications requiring efficient and reliable motor control, such as in printers, scanners, and other automated equipment.
Pinout
The A4975SLBTR-T is a full-bridge motor driver IC designed by Allegro Microsystems. It is typically used for controlling DC motors and stepper motors. The device is housed in a 24-lead SOIC (Small Outline Integrated Circuit) package with an exposed thermal pad for improved heat dissipation.
Key features and pin functions include:
- Pin Count: 24 pins
- Functionality: The A4975SLBTR-T provides a complete microstepping motor driver with built-in translator for easy operation. It simplifies motor control by converting step and direction inputs into phase outputs.
Some key pins include:
- Logic Inputs: For controlling the operation modes of the motor, such as direction and stepping.
- Phase Outputs: These are connected to the motor coils for driving the motor.
- Current Sense: Pins used to monitor and control the current through the motor windings.
- VBB and GND: Power supply and ground connections.
- Thermal Pad: Exposed pad on the underside for heat dissipation, should be connected to a suitable heat sink.
This concise information should give you a basic understanding of the A4975SLBTR-T's pin count and functionality. For detailed pin descriptions and electrical characteristics, refer to the official datasheet.
Key features and pin functions include:
- Pin Count: 24 pins
- Functionality: The A4975SLBTR-T provides a complete microstepping motor driver with built-in translator for easy operation. It simplifies motor control by converting step and direction inputs into phase outputs.
Some key pins include:
- Logic Inputs: For controlling the operation modes of the motor, such as direction and stepping.
- Phase Outputs: These are connected to the motor coils for driving the motor.
- Current Sense: Pins used to monitor and control the current through the motor windings.
- VBB and GND: Power supply and ground connections.
- Thermal Pad: Exposed pad on the underside for heat dissipation, should be connected to a suitable heat sink.
This concise information should give you a basic understanding of the A4975SLBTR-T's pin count and functionality. For detailed pin descriptions and electrical characteristics, refer to the official datasheet.
Manufacturer
The A4975SLBTR-T is manufactured by Allegro MicroSystems. Allegro MicroSystems is a company that specializes in designing, developing, and manufacturing high-performance power and sensing semiconductor solutions. They focus on providing advanced technology for systems such as automotive, industrial, and consumer applications. Allegro is known for its expertise in motor driver ICs, magnetic sensors, and other power management solutions, making it a significant player in the semiconductor industry.
Application
The A4975SLBTR-T is a motor driver IC designed for controlling bipolar stepper motors. Its application areas include:
1. Industrial Automation: Used in CNC machines, robotics, and conveyor systems for precise motor control.
2. Office Equipment: Utilized in printers and copiers for accurate paper movement and positioning.
3. Consumer Electronics: Applied in devices like 3D printers and cameras for controlled movement.
4. Medical Equipment: Used in equipment requiring precise motor operations, such as imaging devices.
5. Automotive Systems: Implemented in systems like adaptive headlights and HVAC control for precise positioning and movement.
The A4975SLBTR-T offers features like microstepping capabilities and over-current protection, making it suitable for applications requiring precision and reliability.
1. Industrial Automation: Used in CNC machines, robotics, and conveyor systems for precise motor control.
2. Office Equipment: Utilized in printers and copiers for accurate paper movement and positioning.
3. Consumer Electronics: Applied in devices like 3D printers and cameras for controlled movement.
4. Medical Equipment: Used in equipment requiring precise motor operations, such as imaging devices.
5. Automotive Systems: Implemented in systems like adaptive headlights and HVAC control for precise positioning and movement.
The A4975SLBTR-T offers features like microstepping capabilities and over-current protection, making it suitable for applications requiring precision and reliability.
Package
The A4975SLBTR-T is a motor driver IC manufactured by Allegro MicroSystems. It typically comes in an SOIC (Small Outline Integrated Circuit) package, specifically a 24-lead SOIC surface-mount package.
