The DRV8805 provides an integrated solution for driving unipolar stepper motors. It includes four low-side drivers with overcurrent protection and provides built-in diodes to clamp turnoff transients generated by the motor windings.
Indexer logic to control a unipolar stepper motor using a simple step/direction interface is also integrated. Three stepping modes are supported: 2 phase (full-step), 1-2 phase (half-step), and 1-phase (wave drive).
In the SOIC (DW) package, the DRV8805 can supply up to 1.5-A (one channel on) or 800-mA (all channels on) continuous output current per channel, at 25°C. In the HTSSOP (PWP) package, it can supply up to 2-A (one channel on) or 1-A (four channels on) continuous output current per channel, at 25°C with proper PCB heatsinking.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, under voltage lockout, and overtemperature, and faults are indicated by a fault output pin.
The DRV8805 is available in a 20-pin thermally-enhanced SOIC package and a 16-pin HTSSOP package (Eco-friendly: RoHS & no Sb/Br).
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | DRV8805 Unipolar Stepper Motor Driver IC datasheet (Rev. D) | PDF | HTML | Oct 24, 2014 |
| Application note | Understanding Motor Driver Current Ratings (Rev. A) | PDF | HTML | Jul 5, 2024 | |
| Application note | Using DRV to Drive Solenoids (Rev. A) | PDF | HTML | Apr 24, 2022 | |
| Application note | How to Drive Unipolar Stepper Motor with the DRV8xxx | PDF | HTML | Dec 3, 2021 | |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | Oct 14, 2021 | |
| Application note | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | Jul 22, 2021 | |
| Technical article | Drive unipolar stepper motors as bipolar stepper motors with a simple wiring recon | PDF | HTML | Apr 9, 2020 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | Jul 6, 2018 | ||
| More literature | TM4C123x Stepper Motor Control Product Summary | Jul 6, 2015 | ||
| Application brief | PowerPAD™ Made Easy (Rev. B) | May 12, 2004 |
For additional terms or required resources, click any title below to view the detail page where available.
The DRV8805 evaluation module consists of a quad low-side motor driver with built-in indexer control interface that can be used to drive a unipolar stepper motor in full-step, half-step or wave mode. With the DRV8805EVM, designers can quickly and easily evaluate the performance of DRV8805 motor (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (DW) | 20 | Ultra Librarian |
| HTSSOP (PWP) | 16 | Ultra Librarian |
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