DRV8837C Datasheet, PDF (13/21 Pages) Texas Instruments – 1-A Low-Voltage H-Bridge Driver

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Bulk Capacitance (continued)
DRV8837C
SLVSD61A – JULY 2016 – REVISED JULY 2016
Power Supply
Parasitic Wire
Inductance
Motor Drive System
VM
+
+
Motor
–
Driver
GND
Local
Bulk Capacitor
IC Bypass
Capacitor
Figure 12. Example Setup of Motor Drive System With External Power Supply
The voltage rating for bulk capacitors should be higher than the operating voltage, to provide margin for cases
when the motor transfers energy to the supply
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