DRV8824 Datasheet, PDF (2/22 Pages) Texas Instruments – STEPPER MOTOR CONTROLLER IC

DRV8824
SLVSA06E – OCTOBER 2009 – REVISED AUGUST 2011
DEVICE INFORMATION
Functional Block Diagram
VM
VM
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V3P3OUT
3.3V
3.3V
AVREF
BVREF
nENBL
STEP
DIR
DECAY
MODE0
MODE1
MODE2
nRESET
nSLEEP
nHOME
Internal
Reference &
Regs
Int. VCC
LS Gate
Drive
Thermal
Shut down
Charge
Pump
HS Gate
Drive
CP1
0.01uF
CP2
VM
VCP
0.1uF
VM
VMA
Motor
Driver A
AOUT1
+
AOUT2
-
Step
Motor
ISENA
+-
Indexer /
Control
Logic
Motor
Driver B
VM
VMB
BOUT1
BOUT2
nFAULT
ISENB
GND
GND
2
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