ZHCSH28C September 2017 – May 2025 TPA3221
PRODUCTION DATA
The TPA3221 device requires a single external power supply for proper operation. A high-voltage supply, PVDD, is required to power the output stage of the speaker amplifier and the associated circuitry. PVDD can be used to supply an internal LDO to supply 5V to AVDD and GVDD (connect VDD to PVDD).
Additionally, in LDO bypass mode an external power supply are connected to VDD, AVDD and GVDD to power the gate-drive and other internal digital and analog circuit blocks in the device.
The allowable voltage range for both the PVDD and VDD/AVDD/GVDD supplies are listed in the Section 6.3 table. Maintain both the PVDD and the VDD/AVDD/GVDD supplies can deliver more current than listed in the Section 6.5 table.