The DRV8821 provides a dual microstepping-capable stepper motor controller/driver solution for printers, scanners, and other office automation equipment applications.
Two independent stepper motor driver circuits include four H-bridge drivers and microstepping-capable indexer logic. Each of the motor driver blocks employ N-channel power MOSFETs configured as an H-bridge to drive the motor windings.
A simple step/direction interface allows easy interfacing to controller circuits. Pins allow configuration of the motor in full-step, half-step, quarter-step, or eighth step modes, and the selection of slow or mixed decay modes.
Internal shutdown functions are provided for over current protection, short-circuit protection, undervoltage lockout, and overtemperature.
The DRV8821 is packaged in a 48-pin HTSSOP package (Eco-friendly : RoHS & no Sb/Br).
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | DRV8821 Dual Stepper Motor Controller and Driver datasheet (Rev. J) | PDF | HTML | 06 Jan 2016 |
| Application note | Understanding Motor Driver Current Ratings (Rev. A) | PDF | HTML | 05 Jul 2024 | |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 14 Oct 2021 | |
| Application note | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 22 Jul 2021 | |
| Application note | Current Recirculation and Decay Modes (Rev. A) | PDF | HTML | 20 Apr 2021 | |
| Application note | Intelligent Stepper Motor Driver (Rev. B) | PDF | HTML | 20 Jan 2021 | |
| Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 19 Jan 2021 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 06 Jul 2018 | ||
| User guide | DRV8821-23 EVM GUI (Rev. A) | 26 Apr 2017 | ||
| More literature | TM4C123x Stepper Motor Control Product Summary | 06 Jul 2015 | ||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 12 May 2004 |
For additional terms or required resources, click any title below to view the detail page where available.
The DRV8821 is a dual stepper motor controller evaluation module includes device, cabling and software to ease the evaluation of the device when driving a customer's motor.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (DCA) | 48 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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