Data Sheet

Charge
Pump
Thermal
Shut down
AOUT1
AOUT2
BOUT1
BOUT2
GNDGND
0.1 mF
0.01 mF
VM
Step
Motor
VMA
VMB
CP1
CP2
VCP
ISENA
ISENB
STEP
DIR
MODE1
MODE2
AVREF
HS Gate
Drive
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
DRV8825
SLVSA73D –APRIL 2010– REVISED SEPTEMBER 2011 www.ti.com
DEVICE INFORMATION
Functional Block Diagram
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Product Folder Link(s): DRV8825