Datasheet

AOUT1
AOUT2
BOUT1
BOUT2
VM
VM
AISEN
BISEN
APHASE
Pre-
drive
Pre-
drive
VCP, VGD
VM
VM
+
-
PWM
VCP, VGD
+
-
PWM
AVREF
OCP
OCP
OCP
OCP
DECAY
BENBL
DAC
DAC
A = 5
A = 5
BI[1:0]
2
AENBL
BPHASE
AI[1:0]
2
BVREF
DCM
DCM
DRV8814
www.ti.com SLVSAB9D –MAY 2010–REVISED AUGUST 2013
FUNCTIONAL DESCRIPTION
PWM Motor Drivers
The DRV8814 contains two H-bridge motor drivers with current-control PWM circuitry. A block diagram of the
motor control circuitry is shown in Figure 1.
Figure 1. Motor Control Circuitry
Note that there are multiple VM pins. All VM pins must be connected together to the motor supply voltage.
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