DRV8811 Datasheet, PDF (2/19 Pages) Texas Instruments – STEPPER MOTOR CONTROLLER IC

DRV8811
SLVS865D – SEPTEMBER 2008 – REVISED JULY 2009 ................................................................................................................................................. www.ti.com
FUNCTIONAL BLOCK DIAGRAM
VCC
VCC
VCC
VGD
VREF
LS Gate
Drive
Internal
Reference
and
Regulator
Thermal
Shut down
VM
Internal VCC
Internal Ref
Charge
Pump
HS Gate
Drive
CP1
CP2
0.22 µF
VM
VCP
0.22 µF
VM
VMA
VCC
ENABLEn
SLEEPn
STEP
DIR
USM0
USM1
RESETn
SRn
HOMEn
DECAY
RCA
RCB
Indexer /
Control
Logic
Motor
Driver A
Motor
Driver B
AOUT1
AOUT2
ISENA
+
Step
Motor
-
+
-
VM
VMB
BOUT1
BOUT2
ISENB
GND
GND
2
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