DRV8834 Datasheet, PDF (2/30 Pages) Texas Instruments – DUAL BRIDGE STEPPER OR DC MOTOR DRIVER

DRV8834
SLVSB19A – FEBRUARY 2012 – REVISED MARCH 2012
DEVICE INFORMATION
Functional Block Diagram
VM
0.01µF
VM
+
VM
10µF
VINT
2.2µF
VREFO
VREFO
nENBL / AENBL
STEP / BENBL
DIR / BPHASE
CONFIG
M0 / APHASE
M1
VM
Internal
Ref &
Regs
VINT,
refs,
Int. supp.
Charge
Pump
PUC,
UVLO
VCP
VM
Gate
Drive
&
VM
OCP
nSLEEP
nFAULT
Logic
ISEN
VM
ADECAY
BDECAY
VREFO
AVREF
BVREF
Over-
Temp
Gate
Drive
&
VM
OCP
ISEN
VM
VCP
0.01µF
AOUT1
DCM
AOUT2
AISEN
BOUT1
DCM
BOUT2
BISEN
GND
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Step
Motor
2
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