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DRV8811PWPR
+NomenclatureIC MTR DRV BIPLR 3-5.5V 28HTSSOP
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FabricantTexas Instruments
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Pièce fabricant #DRV8811PWPR
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Package HTSSOP-28
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En stock3839
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| MotorType-Stepper | Bipolar |
| Function | Driver - Fully Integrated, Control and Power Stage |
| OutputConfiguration | Half Bridge (4) |
| Interface | Logic |
| Technology | Power MOSFET |
| StepResolution | 1, 1/2, 1/4, 1/8 |
| Applications | General Purpose |
| Current-Output | 1.9A |
| Voltage-Supply | 3V ~ 5.5V |
| Voltage-Load | 8V ~ 38V |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 28-PowerTSSOP (0.173, 4.40mm Width) |
Présentation
Description
Key features include:
1. Microstepping Capability: Supports full-step, half-step, quarter-step, and eighth-step modes to enable smooth and precise motor control.
2. Integrated Protection: Offers overcurrent, overtemperature, and undervoltage lockout protections, enhancing reliability.
3. Built-in Current Regulation: Allows for dynamic adjustment of motor current to optimize efficiency and reduce power loss.
4. Wide Operating Voltage Range: Compatible with motor supply voltages from 8.2 V to 35 V.
5. Efficient Design: Utilizes low RDS(on) MOSFETs to minimize power dissipation.
This IC is advantageous for its compact size, efficiency, and comprehensive protection features, making it suitable for various precise and power-sensitive applications.
Equivalent
1. Allegro A4988: A popular microstepping motor driver with similar features.
2. STMicroelectronics L6208: A stepper motor driver with integrated DMOS outputs.
3. Toshiba TB6560: Another commonly used stepper motor driver for similar applications.
Always check specific electrical characteristics and pin configurations to ensure compatibility.
Features
1. Microstepping Capability: Supports full-step, half-step, quarter-step, and eighth-step modes for smooth motor control.
2. Dual H-Bridge Driver: Contains two H-bridges to drive a bipolar stepper motor.
3. Current Control: Features a current regulation system with three decay modes (fast, slow, and mixed) to optimize performance.
4. Wide Voltage Range: Operates from 8.2V to 35V, suitable for various applications.
5. Output Current: Capable of delivering up to 2.5A peak current per bridge, allowing for powerful motor operation.
6. Protection Features: Offers overcurrent, overtemperature, and undervoltage lockout protections to enhance reliability and safety.
7. Thermal Performance: Comes in a PowerPAD package for efficient heat dissipation.
8. Simple Interface: Provides an easy-to-use interface for control using standard logic signals.
These features make the DRV8811PWPR well-suited for driving stepper motors in printers, scanners, robotics, and other applications requiring precise motor control.
Pinout
1. Pin Count: The device has 28 pins.
2. Functions:
- VM (Pins 1, 28): Supply voltage for the motor.
- OUT1A, OUT1B, OUT2A, OUT2B (Pins 14, 15, 21, 20): Outputs for the H-Bridge, connecting to the stepper motor windings.
- GND (Pins 7, 8, 18, 19): Ground connections.
- VREF (Pin 6): Reference voltage for current regulation.
- DECAY (Pin 5): Decay mode selection.
- nRESET (Pin 4): Resets internal logic.
- nSLEEP (Pin 3): Puts the device into low-power sleep mode.
- STEP (Pin 10): Steps the motor by one increment.
- DIR (Pin 9): Sets the direction of the stepper motor.
- ENABLE (Pin 11): Enables the H-Bridge outputs.
- FAULT (Pin 12): Indicates fault conditions.
- MODE (Pins 2, 13): Selects microstepping mode.
- V3P3OUT (Pin 17): 3.3V regulator output used for internal logic.
These pins and functions are specifically configured to manage and control the operation of stepper motors efficiently.
Manufacturer
Application
1. 3D Printers: For precise movement control of the print head and bed.
2. Robotics: Used in robotic arms and other mechanisms that require accurate positioning.
3. CNC Machines: Provides reliable step control for cutting and milling operations.
4. Automated Machinery: In industrial automation for conveyor belts and positioning systems.
5. Office Equipment: In printers and scanners to control paper feed and scanning mechanisms.
6. Medical Devices: For precision control in equipment like infusion pumps and imaging systems.
The DRV8811PWPR supports micro-stepping, which enhances the precision and smoothness of motor movements across these applications.