DRV8805
www.ti.com
SLVSAW3C –JULY 2011–REVISED MARCH 2012
UNIPOLAR STEPPER MOTOR DRIVER IC
Check for Samples: DRV8805
1
FEATURES
2
•
4-Channel Protected Low-Side Driver
•
•
8.2-V to 60-V Operating Supply Voltage Range
Thermally Enhanced Surface Mount Package
–
Four NMOS FETs With Overcurrent
Protection
APPLICATIONS
–
Integrated Inductive Catch Diodes
•
•
Gaming Machines
•
Indexer/Translator for Unipolar Stepper Motors
General Unipolar Stepper Motor Drivers
–
–
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)
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 turn-off 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 over current 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).
ORDERING INFORMATION(1)
ORDERABLE PART
NUMBER
TOP-SIDE
MARKING
PACKAGE(2)
(SOIC) - DW
Reel of 2000
Tube of 25
Reel of 2000
Tube of 90
DRV8805DWR
DRV8805DW
DRV8805
DRV8805
DRV8805
DRV8805
DRV8805PWPR
DRV8805PWP
(HTSSOP) - PWP
(1) For the most current packaging and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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