Datasheet

Thermal
Shut down
OUT1
GND
(multiple pins)
VCLAMP
STEP
DIR
SM1
Internal
Reference
Regs
UVLO
Int. VCC
nFAULT
Control
Logic
RESET
nENBL
VM
LS Gate
Drive
OUT2
OUT3
OUT4
OCP
&
Gate
Drive
OCP
&
Gate
Drive
OCP
&
Gate
Drive
OCP
&
Gate
Drive
Optional
Zener
Winding 1
SM0
nHOME
Winding 2
Winding 3
Winding 4
Unipolar
Stepper
3.3V
8.2
V –
60
V
8.2
V –
60
V
DRV8805
SLVSAW3C –JULY 2011–REVISED MARCH 2012 www.ti.com
DEVICE INFORMATION
Functional Block Diagram
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