DRV11873

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SLWS237 – NOVEMBER 2012

APPLICATION INFORMATION

ground is needed for decoupling purpose. During layout, the strategy of ground copper pour is very important to

enhance the thermal performance. For two or more layers, eight thermal vias are needed. Refer to Figure 1 for

an example of PCB layout. For high speed motors (FS = 1), which need higher start up current, three Schottkey

diodes are needed between phases U, V, W and ground. Each diode anode terminal needs to be connected to

ground and cathode terminal needs to be connected to either U or V or W.

Figure 1. PCB Layout

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