DRV8832-Q1 Datasheet, PDF (7/20 Pages) Texas Instruments – Low-Voltage Motor Driver IC

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7 Detailed Description
DRV8832-Q1
SLVSBW9C – APRIL 2013 – REVISED DECEMBER 2015
7.1 Overview
The DRV8832-Q1 is an integrated motor driver solution used for brushed motor control. The device integrates
one H-bridge, current regulation circuitry, and a PWM voltage regulation method.
Using the PWM voltage regulation allows the motor to maintain the desired speed as VCC changes. Battery
operation is an example of using this feature. When the battery is new or fully charged VCC will be higher than
when the battery is old or partially discharged. The speed of the motor will vary based on the voltage of the
battery. By setting the desired voltage across the motor at a lower voltage, a fully charged battery will use less
power and spin the motor at the same speed as a battery that has been partially discharged.
7.2 Functional Block Diagram
Battery
VCC
VCC
VREF
VSET
IN1
IN2
FAULTn
Integ. ^-
Comp
+
Ref
VCC
OCP
Gate
Drive
OUT1
VCC
DCM
Logic
OCP
Over-
Temp
Osc
Gate
Drive
Current
Sense
OUT2
ISENSE
GND
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