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DRV8821DCAR
+NomenclatureIC MTR DRV BIPOLR 8-32V 48HTSSOP
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FabricantTexas Instruments
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Pièce fabricant #DRV8821DCAR
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Package HTSSOP (DCA)-48
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En stock5983
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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 (8) |
| Interface | Logic |
| Technology | Power MOSFET |
| StepResolution | 1, 1/2, 1/4, 1/8 |
| Applications | General Purpose |
| Current-Output | 1.5A |
| Voltage-Supply | 8V ~ 32V |
| Voltage-Load | 8V ~ 32V |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 48-TFSOP (0.240, 6.10mm Width) Exposed Pad |
Présentation
Description
Key features include built-in microstepping indexer, which simplifies the implementation of stepper motor systems, and configurable decay modes for optimizing performance. It also offers protection features like overcurrent, overtemperature, and undervoltage lockout, ensuring safe operation under various conditions. The DRV8821DCAR can be controlled via simple digital inputs, allowing for easy interfacing with microcontrollers or other control systems.
Due to its compact package and integration of essential components, it reduces system size and component count while enhancing reliability. This makes the DRV8821DCAR suitable for applications such as printers, scanners, robotics, and other equipment requiring precise motor control.
Equivalent
Features
1. Dual H-Bridge: Capable of driving two DC motors or one stepper motor.
2. Current Control: Features adjustable current control, allowing for precise motor operation and protection.
3. Microstepping: Supports up to 32 microsteps for stepper motors, enhancing precision and smoothness.
4. Wide Voltage Range: Operates from 8.2V to 45V, suitable for various applications.
5. High Current Capability: Can deliver up to 2.5A RMS current per H-bridge, with peak currents higher.
6. Protection Features: Includes overcurrent, overtemperature, and undervoltage lockout protections.
7. Thermal Performance: Designed for efficient thermal handling with a PowerPAD™ package.
8. Interface: Uses a simple control interface compatible with many microcontrollers.
9. Sleep Mode: Supports low-power sleep mode to conserve energy when not actively driving a motor.
These features make the DRV8821DCAR ideal for applications like robotics, CNC machines, and other automated systems requiring precise motor control.
Pinout
Key functions and features of the DRV8821 include:
1. Dual H-Bridge Drivers: Allows for bidirectional control of two motors.
2. Microstepping Support: Capable of different step modes, including full-step and microstepping for precise control.
3. Current Regulation: Provides adjustable current control to limit the motor current through an external resistor.
4. Protection Features: Includes overcurrent protection (OCP), thermal shutdown, undervoltage lockout (UVLO), and short-circuit protection.
5. Control Interface: Can be controlled using standard interface signals for stepper motor control.
This IC is particularly useful in applications such as CNC machines, 3D printers, and other automated equipment requiring precise motor control.