Tool/software:
Dear,
How mandatory is it to leave SW floating when using an external PVDD?
I ask because our device would use an external 12VDC PVDD when being powered by a 230V AC power supply.
The internal boost converter of TAS2563 would be used only when the device's power is supplied by a USB power supply or working on a LiPo single cell battery.
I have tested this with TAS2563EVM, by first disabling the boost connector using PPC, and afterwards connecting an external PVDD, and did not encounter any issue.
I left the inductor L7 in place.
What is your advice?
If I have to leave SW floating when external PVDD is connected, what are your recommendations to realise it? Just placing p-channel MOSFET in between inductor and SW?
Best Regards,
Kristof Vandenbussche