Texas Instruments

DRV8821DCA  

Motor Drivers, Controllers

DRV8821DCA Description

The DRV8821DCA from Texas Instruments is a high-performance bipolar stepper motor driver designed for general-purpose applications. Housed in a compact 48-pin HTSSOP package, it integrates eight half-bridge outputs capable of delivering up to 1.5A per phase, making it suitable for driving medium-power stepper motors. With a wide supply voltage range (8V–32V), it supports flexible power configurations while maintaining robust performance. The device leverages Power MOSFET technology for efficient power handling and thermal management, ensuring reliability in demanding environments. Its REACH Unaffected and ROHS3 Compliant certifications highlight its adherence to environmental and safety standards.

DRV8821DCA Features

• Microstepping Control: Offers configurable step resolutions (1, 1/2, 1/4, 1/8) for smooth motor operation and reduced vibration.
• High-Current Output: Delivers 1.5A per phase, enabling precise control of bipolar stepper motors.
• Wide Voltage Range: Operates from 8V to 32V, accommodating diverse power supplies and motor requirements.
• Integrated Protection: Includes thermal shutdown, under-voltage lockout (UVLO), and over-current protection for enhanced system durability.
• Logic Interface: Simplifies integration with microcontrollers and digital control systems.
• Surface-Mount Design: 48-HTSSOP package optimizes PCB space while ensuring efficient heat dissipation.

DRV8821DCA Applications

The DRV8821DCA excels in applications requiring precise motion control, such as:

• 3D Printers & CNC Machines: Delivers smooth microstepping for high-resolution positioning.
• Industrial Automation: Drives conveyor belts, robotic arms, and automated assembly systems.
• Medical Equipment: Powers infusion pumps and diagnostic devices where reliability is critical.
• Office Automation: Used in scanners, printers, and copiers for accurate paper handling.
• Consumer Electronics: Ideal for camera gimbals and smart home devices requiring quiet, efficient motor control.

Conclusion of DRV8821DCA

The DRV8821DCA stands out as a versatile, high-performance stepper motor driver, combining flexible microstepping, robust power handling, and integrated protections. Its wide voltage range and compact form factor make it a preferred choice for engineers designing motion control systems across industrial, medical, and consumer applications. With Texas Instruments' proven reliability, this driver ensures efficiency, precision, and longevity in demanding environments.

DRV8821DCA Documents

Download datasheets and manufacturer documentation for DRV8821DCA

PCN Assembly/Origin :

Mult Devices 17/Oct/2017      

Datasheets :

DRV8821      

Reference Design Library :

DRV8821EVM: 1.5A BiPolar Motor Driver, 8 ~ 27 V      

HTML Datasheet :

DRV8821      

PCN Design/Specification :

Design 22/Feb/2022