Motor Driver. DRV8805 Datasheet

DRV8805 Driver. Datasheet pdf. Equivalent

Part DRV8805
Description Unipolar Stepper Motor Driver
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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, 1-2-
Phase 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 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).
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV8805
SOIC (20)
HTSSOP (16)
12.80 mm × 7.50 mm
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
8.2V to 60V
5 STEP/DIR
Controller
RESET
nFAULT
DRV8805 1 A
Quad
Low-Side
Driver
1A
Fault
1A
Protection
Clamp
1A
Diodes
M
+±
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



DRV8805
DRV8805
SLVSAW3D – JULY 2011 – REVISED JANUARY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Timing Requirements ................................................ 6
6.7 Typical Characteristics .............................................. 7
7 Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ......................................... 8
7.3 Feature Description................................................... 9
7.4 Device Functional Modes........................................ 10
8 Application and Implementation ........................ 12
8.1 Application Information............................................ 12
8.2 Typical Application .................................................. 12
9 Power Supply Recommendations...................... 14
9.1 Bulk Capacitance .................................................... 14
10 Layout................................................................... 15
10.1 Layout Guidelines ................................................. 15
10.2 Layout Example .................................................... 15
10.3 Thermal Considerations ........................................ 15
11 Device and Documentation Support ................. 17
11.1 Documentation Support ....................................... 17
11.2 Trademarks ........................................................... 17
11.3 Electrostatic Discharge Caution ............................ 17
11.4 Glossary ................................................................ 17
12 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (March 2012) to Revision D
Page
• Changed Catch Diodes to Clamp Diodes in Features .......................................................................................................... 1
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
• Updated the text in the EXTERNAL COMPONENTS OR CONNECTIONS column for nHOME row .................................. 3
• Updated PARAMETERS, TEST CONDTIONS, MIN, TYP, and MAX values in the nHOME OUTPUT section in the
Electrical Characteristics table ............................................................................................................................................... 5
2
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