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DRV8805 - Unipolar Stepper Motor Driver

General 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.

Key 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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.