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DRV8818PWPR
+NomenclatureIC MTR DRV BIPLR 3-5.5V 28HTSSOP
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FabricantTexas Instruments
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Pièce fabricant #DRV8818PWPR
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Package HTSSOP-28
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En stock2758
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Motor Type - Stepper | Bipolar |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Output Configuration | Half Bridge (4) |
| Interface | Logic |
| Technology | Power MOSFET |
| Step Resolution | 1, 1/2, 1/4, 1/8 |
| Applications | General Purpose |
| Current - Output | 2.5A |
| Voltage - Supply | 3V ~ 5.5V |
| Voltage - Load | 8V ~ 35V |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
Présentation
Description
Key features include built-in overcurrent, thermal shutdown, and undervoltage lockout protections, contributing to reliable operation. It integrates a simple interface for step and direction control, facilitating ease of use in applications like 3D printers, robotics, and CNC machines. Additionally, the DRV8818PWPR offers adjustable current control via an external resistor and supports mixed decay modes for optimized performance. This combination of features makes it a versatile and robust choice for stepper motor control applications.
Equivalent
1. Allegro A4988
2. Trinamic TMC2208
3. STMicroelectronics L298N
4. Toshiba TB6600
It's important to compare the specific features and ratings, as they may vary between models. Always check the datasheets to ensure compatibility for your specific application.
Features
1. Dual H-Bridge Design: It integrates two H-bridges, allowing it to drive a bipolar stepper motor effectively.
2. Microstepping Operation: Supports microstepping with up to 1/8 steps, providing smooth motor performance and higher precision.
3. Wide Voltage Range: Operates over a wide voltage range from 8.2V to 45V, making it versatile for various applications.
4. Current Control: Features adjustable current control for each motor phase, which helps in reducing power consumption and heat generation.
5. Protection Features: Includes overcurrent, thermal shutdown, and undervoltage lockout protections to enhance reliability and durability.
6. Low Power Sleep Mode: Reduces power consumption during inactivity with a low power sleep mode.
7. Compact Package: Comes in a 28-pin HTSSOP package with a PowerPAD™ for enhanced thermal performance.
These features make the DRV8818PWPR suitable for applications requiring precise motion control, such as robotics, automation, and other stepper motor-driven systems.
Pinout
1. Power Supply Pins: VMA, VMB for motor supply voltage; VCP for charge pump voltage; VREG for internal regulator voltage; and GND for ground.
2. Motor Outputs: AOUT1, AOUT2, BOUT1, BOUT2 for connecting to the stepper motor coils.
3. Control Pins: STEP for controlling step input; DIR for direction control; ENABLE to enable/disable the output stage.
4. Fault and Mode Pins: NFAULT for fault condition indication; NRESET for resetting the device; DECAY to set the decay mode.
5. Current Control Pins: ISENA, ISENB for current sense inputs; VREF to set the reference voltage for current regulation.
6. Other Pins: CP1, CP2 for charge pump capacitors; AVREF, BVREF for reference voltage input.
This IC is designed primarily for driving stepper motors with efficient and precise control, featuring current regulation and protection mechanisms.
Manufacturer
Application
1. Industrial Automation: Used in robotic arms and conveyor systems for precise positioning and motion control.
2. Printers and Scanners: Facilitates the movement of paper and scanning mechanisms.
3. Textile Machines: Controls motors that manage fabric weaving and cutting.
4. CNC Machines: Provides precision control for automated machining tools.
5. Home Appliances: Utilized in washing machines and dishwashers for motorized functions.
6. Medical Devices: Powers motors in equipment like pumps and positioning systems.
7. Office Equipment: Drives motors in fax machines and copiers.
These applications benefit from the DRV8818PWPR's ability to control stepper motors efficiently and reliably.