DRV8821DCAR

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DRV8821DCAR

+Nomenclature

IC MTR DRV BIPOLR 8-32V 48HTSSOP

  • FabricantTexas Instruments

  • Pièce fabricant #DRV8821DCAR

  • Package HTSSOP (DCA)-48

  • 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

The DRV8821DCAR is a dual H-bridge motor driver IC designed by Texas Instruments for controlling stepper motors and DC motors in various applications. It operates with a supply voltage range of 8.2V to 45V, making it suitable for a variety of industrial and consumer applications. The device supports currents up to 2.5A per H-bridge, providing robust motor control capabilities.
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

The DRV8821DCAR is a dual H-bridge motor driver from Texas Instruments. Equivalent products include the A4988 from Allegro MicroSystems, which is a microstepping motor driver for bipolar stepper motors, and the L298N from STMicroelectronics, which is a dual H-bridge driver for DC and stepper motors. Another potential alternative is the TB6612FNG from Toshiba, which is also a dual H-bridge driver suitable for small DC motors. Always verify specifications for compatibility with your application.

Features

The DRV8821DCAR is a dual H-bridge motor driver designed for precision motor control applications. Key features include:
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

The DRV8821DCAR is a dual H-bridge motor driver IC from Texas Instruments, designed primarily for driving stepper motors but also suitable for DC motors. It comes in a 38-pin HTSSOP (Heat-Sink Thin-Shrink Small-Outline Package) with PowerPAD for enhanced thermal performance. The device can control up to two stepper motors or four DC motors.
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.

Manufacturer

The DRV8821DCAR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components, including integrated circuits for various applications. TI is known for its innovation in the electronics industry, providing solutions for analog and embedded processing products. The company serves a diverse array of sectors, including automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The DRV8821DCAR is a stepper motor driver commonly used in applications requiring precise motor control. Key application areas include 3D printers, robotic arms, CNC machines, and office automation equipment. It is also used in factory automation, textile machinery, and other industrial applications that require accurate motor positioning and control. The driver is suitable for applications that demand compact form factors and efficient power management.

Package

The DRV8821DCAR is a stepper motor driver IC from Texas Instruments. It is typically available in an HTSSOP (Heat-Slug Thin Shrink Small Outline Package) package, with 28 pins and features an exposed thermal pad to aid in heat dissipation.

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