Datasheet

Thermal
Shut down
AOUT1
AOUT2
BOUT1
BOUT2
GNDGND
Step
Motor
VMA
VMB
ISENA
ISENB
STEP
DIR
MODE1
MODE2
AVREF
VM
VM
Internal
Reference &
Regs
Int. VCC
Motor
Driver B
nFAULT
Indexer /
Control
Logic
nRESET
Motor
Driver A
nENBL
nSLEEP
V3P3OUT
3.3 V
LS Gate
Drive
+
+
-
-
3.3 V
BVREF
MODE0
nHOME
DECAY
Charge
Pump
0.1 Fm
0.01 Fm
VM
CP1
CP2
VCP
HS Gate
Drive
1MW
DRV8825
SLVSA73E –APRIL 2010–REVISED AUGUST 2013 www.ti.com
DEVICE INFORMATION
Functional Block Diagram
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