I wanted to get a better idea of the supply current requirements (peak pulse) for this series amp so I set up a TINA sim of these two devices. Supply is 3.3v with an 8 ohm speaker. By varying Rfb as a volume control i could vary the ouput power from 0 to ~400mw peak. The supply input current waveform never varied from the Iq value for either of these parts. I know the part can't create power from thin air. Is there a problem with the models or Am I missing something?
Thanks