Datasheet

DRV8813
www.ti.com SLVSA72D –APRIL 2010–REVISED AUGUST 2013
FUNCTIONAL DESCRIPTION
PWM Motor Drivers
The DRV8813 contains two H-bridge motor drivers with current-control PWM circuitry. A block diagram of the
motor control circuitry is shown in Figure 1. A bipolar stepper motor is shown, but the drivers can also drive two
separate DC motors.
Figure 1. Motor Control Circuitry
Note that there are multiple VM motor power supply pins. All VM pins must be connected together to the motor
supply voltage.
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