omc506 International Rectifier Corp., omc506 Datasheet - Page 6

• Manufacturer Part Number: omc506
• Description: Closed Loop Speed Controller For 3-phase Brushless Dc Motor Mp-3t Package
• Manufacturer: International Rectifier Corp.

OMC506
Typical Motor Connections
Figure 2 shows a typical application of the OMC506. The user must externally connect an electrolytic capacitor
(value is dependant on the application) bypassed with a ceramic decoupling capacitor. These capacitors
should be as close to the module as feasible. In addition, it is recommended that a transient suppressor also
be added in parallel with the external capacitors to prevent high voltage transients on the motor bus.
Figure 2 - Typical Motor Connections
5 V
634
80.6K
6.65K
0.1µF
0.01µF
0.01µF
MOT
DIAGNOSTIC
+
100K
DISABLE
480µF
145 C TRIP
FORCE TRIP
Conclusion
International Rectifier’s OMC506 offers a complete motor control system, that is flexible in design, in a high
density, high power industrial module. The assembly technology makes the OMC506 an ideal candidate in
systems where package size is critical. This power module integrates all the functions necessary to control a
DC brushless motor. The design of the OMC506 is flexible enough to be customized for various applications
while still maintaining a turn-key solution to the end user. Finally, the MP310, as other industrial packages
from International Rectifier, makes the user’s mechanical interface simple while optimizing the thermal transfer
from the module to the heatsink.
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