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SLVSAW3D – JULY 2011 – REVISED JANUARY 2016 DRV8805 Unipolar Stepper Motor Driver IC
1 Features 3 Description The DRV8805 provides an integrated solution for
driving unipolar stepper motors. It includes four lowside drivers with overcurrent protection and provides
built-in diodes to clamp turnoff transients generated
by the motor windings. 1 4-Channel Protected Low-Side Driver
– Four NMOS FETs With Overcurrent Protection
– Integrated Inductive Clamp Diodes
Indexer/Translator for Unipolar Stepper Motors
– Simple Step/Direction Interface
– Three Step Modes (2-Phase Full-Step, 1-2Phase Half-Step, 1-Phase Wave Drive)
DW Package: 1.5-A (Single Channel On) /
800-mA (Four Channels On) Maximum Drive
Current per Channel (at 25В°C)
PWP Package: 2-A (Single Channel On) /
1-A (Four Channels On) Maximum Drive Current
per Channel (at 25В°C, With Proper PCB
Heatsinking) …
