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A3959SLBTR-T
+NomenclatureIC MOTOR DRIVER 4.5V-5.5V 24SOIC
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FabricantAllegro microsystèmes
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Pièce fabricant #A3959SLBTR-T
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Fiche technique A3959SLBTR-T DataSheet
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Package 24-SOIC
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En stock6213
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| MotorType-ACDC | Brushed DC |
| Function | Driver - Fully Integrated, Control and Power Stage |
| OutputConfiguration | Half Bridge (2) |
| Interface | Parallel |
| Technology | DMOS |
| Applications | General Purpose |
| Current-Output | 3A |
| Voltage-Supply | 4.5V ~ 5.5V |
| Voltage-Load | 9.5V ~ 50V |
| OperatingTemperature | -20°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 24-SOIC (0.295, 7.50mm Width) |
Présentation
Description
The A3959SLBTR-T supports microstepping, allowing for finer control over the motor position and reducing noise and resonance issues compared to full or half-step modes. It operates over a wide voltage range and includes features like thermal shutdown, crossover-current protection, and undervoltage lockout, enhancing reliability and performance in demanding environments. The device is typically packaged in a small form factor suitable for surface-mount assembly, making it ideal for compact designs. Overall, the A3959SLBTR-T is a versatile and efficient solution for stepper motor control applications.
Equivalent
1. TI DRV8800/DRV8801 series from Texas Instruments.
2. ST L6208 from STMicroelectronics.
3. ON Semiconductor LV8548MC.
4. Toshiba TB6612FNG.
When choosing an equivalent, ensure it matches your specific voltage, current, and feature requirements.
Features
1. Microstepping Control: It provides microstepping capabilities, allowing for smoother and more precise motor operation compared to full or half-step drives.
2. Current Control: The device uses a constant current control technique, which helps maintain consistent motor performance across different conditions.
3. Bipolar Drive: Suitable for driving bipolar stepper motors, offering greater torque and efficiency.
4. Output Stages: It features dual full-bridge output stages, capable of handling the high currents needed for driving stepper motors.
5. Protection Features: Includes thermal shutdown, overcurrent protection, and crossover-current protection, enhancing reliability and safety.
6. Compact Package: The device is available in a compact surface-mount package, facilitating space-saving designs and ease of integration.
7. Wide Voltage Range: Compatible with a wide operating voltage range, making it flexible for various applications.
These features make the A3959SLBTR-T suitable for applications requiring precise motor control, such as in printers, scanners, and industrial automation systems.
Pinout
Here is a brief overview of the pin functions:
1. OUT1A and OUT1B: These are the outputs for Bridge 1.
2. SENSE1 and SENSE2: These pins are connected to ground through sense resistors to monitor the current through each bridge.
3. OUT2A and OUT2B: These are the outputs for Bridge 2.
4. VBB: This is the supply voltage pin for the device.
5. GND: Ground connection.
6. VDD: Logic supply voltage pin.
7. PHASE1 and PHASE2: These pins control the direction of the current through Bridge 1 and Bridge 2, respectively.
8. ENABLE: This pin enables or disables the outputs.
9. REF: This pin sets the reference voltage for the current control.
This setup allows the A3959SLBTR-T to efficiently control motor applications by adjusting the current flow and direction through its H-bridge configurations.
Manufacturer
Application
1. Robotics: Used for controlling stepper motors in robotic arms and platforms.
2. Printers: Facilitates precise control of print head movements.
3. CNC Machines: Essential for controlling motor-driven tools in computer numerical control machines.
4. 3D Printers: Manages the movement of extruders and build platforms.
5. Automated Conveyors: Drives motors in automated material handling systems.
6. Industrial Automation: Used in various automated machinery for precise motion control.
The device is valued for its built-in microstepping capabilities and current control features, making it suitable for applications requiring high precision and efficiency.