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TPA3112D1: GVDD is 5 to 5.2V instead of 7V

Part Number: TPA3112D1

Audio team,

One of our customers using TPA3112D1 is seeing that GVDD is around 5 V to 5.2 V instead of the expected 7 V on multiple separate projects..  AVCC is measured at 21 V.  AVCC is supplied from PVCC through a 100 kOhm resistor to avoid high slew rate.  PVCC is 24 V.

GVDD is connected to a voltage divider for PLIMIT (actually a digipot) with a total resistance of 10 kOhm.

Do you know why they would see GVDD at a lower voltage like this?  It is causing problems with PLIMIT being triggered unnecessarily.

Thanks,

Darren