DRV8825 Datasheet, PDF (2/22 Pages) Texas Instruments – STEPPER MOTOR CONTROLLER IC

DRV8825
SLVSA73C – APRIL 2010 – REVISED MAY 2011
VM
VM
DEVICE INFORMATION
Functional Block Diagram
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V3P3OUT
3.3 V
3.3 V
AVREF
BVREF
nENBL
STEP
DIR
DECAY
Internal
Reference &
Regs
Thermal
Shut down
Int. VCC
LS Gate
Drive
Charge
Pump
CP1
0.01 mF
CP2
VM
HS Gate
Drive
VCP
0.1 mF
VM
VMA
Motor
Driver A
AOUT1
+
AOUT2
-
Step
Motor
ISENA
+-
MODE0
MODE1
MODE2
nRESET
nSLEEP
nHOME
Indexer /
Control
Logic
Motor
Driver B
VM
VMB
BOUT1
BOUT2
nFAULT
ISENB
GND
GND
2
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