DRV8802-Q1_15 Datasheet, PDF (9/26 Pages) Texas Instruments – DRV8802-Q1 Automotive DC Motor-Driver IC

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DRV8802-Q1
SLVSCI2A – JUNE 2014 – REVISED JUNE 2014
7.3 Feature Description
7.3.1 PWM Motor Drivers
The DRV8802-Q1 device contains two H-bridge motor drivers with current-control PWM circuitry. Figure 5 shows
a block diagram of the motor control circuitry.
AENBL
APHASE
DECAY
AI0, AI1
VCP, VGD
OCP
Pre-
drive
PWM
DAC
2
OCP
-
+
A =5
VM
VM
AOUT1
AOUT 2
DCM
AISEN
AVREF
BENBL
BPHASE
BI0, BI1
BVREF
VCP, VGD
OCP
Pre-
drive
PWM
DAC
2
OCP
-
+
A =5
VM
VM
BOUT 1
BOUT 2
DCM
BISEN
Figure 5. Motor Control Circuitry
Note that there are multiple VM pins (VMx). All VMx pins must be connected together to the motor supply
voltage.
Copyright © 2014, Texas Instruments Incorporated
Product Folder Links: DRV8802-Q1
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