The TPA3223 device has a few power supplies which
each have their own voltage range and rules. Details for each supply are as shown:
- PVDD – This is the main device supply
which accepts from 10 V to 45 V. Power output of the device is derived solely from PVDD
and therefore it is important to configure this supply according to the chosen output
configuration and load. Complete details are included in the TPA3223 datasheet.
- VDD – This supply is used for the non-PVDD power of the device for
blocks such as the front-end and control circuitry. VDD is powered by 5 V directly and
tied to GVDD and AVDD pins.
- GVDD and AVDD – These pins are used for the gate drive and analog
supply of the device. GVDD and AVDD accept only 5 V which can be provided through the TP
or the 5V through J24.
Table 3-15 Power Supply Summary
PVDD (V) |
VDD (V) |
AVDD (V) |
GVDD (V) |
10.0 to 45.0 |
5.0 |
5.0 (Tied to VDD) |
5.0 (Tied to VDD) |