DRV8805

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DRV8805 SLVSAW3D – JULY 2011 – REVISED JANUARY 2016 DRV8805 Unipolar Stepper Motor Driver IC 1 Features 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 25°C) PWP Package: 2-A (Single Channel On) / 1-A (Four Channels On) Maximum Drive Current per Channel (at 25°C, With Proper PCB Heatsinking) 8.2-V to 60-V Operating Supply Voltage Range Thermally Enhanced Surface Mount Package 2 Applications Gaming Machines General Unipolar Stepper Motor Drivers 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. 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...