DRV8805_12 Datasheet, PDF (1/19 Pages) Texas Instruments – UNIPOLAR STEPPER MOTOR DRIVER IC

DRV8805
www.ti.com
SLVSAW3C – JULY 2011 – REVISED MARCH 2012
UNIPOLAR STEPPER MOTOR DRIVER IC
Check for Samples: DRV8805
FEATURES
1
•2 4-Channel Protected Low-Side Driver
– Four NMOS FETs With Overcurrent
Protection
– Integrated Inductive Catch 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
APPLICATIONS
• Gaming Machines
• General Unipolar Stepper Motor Drivers
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).
PACKAGE ⁽²⁾
(SOIC) - DW
(HTSSOP) - PWP
ORDERING INFORMATION⁽¹⁾
ORDERABLE PART
NUMBER
Reel of 2000
DRV8805DWR
Tube of 25
DRV8805DW
Reel of 2000
DRV8805PWPR
Tube of 90
DRV8805PWP
TOP-SIDE
MARKING
DRV8805
DRV8805
DRV8805
DRV8805
(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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2
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.
Copyright © 2011–2012, Texas Instruments Incorporated