The terminal customer of Guangwo feedback the following problems when using TPA3321:
1. When the output of 4PCS bootstrap capacitor C5/C6/C30/C31 value is 333, the test finds that when the sound is turned to the maximum and ,TPA3221 will be triggered protection when the low-frequency signal IC of 100HZ is played (even if it is not connected to load), but the signal of 1KHZ does not show the above phenomenon
2. If the output capacitor is changed to 105, the above phenomenon will disappear. The customer wants to confirm whether such modification will affect the reliability of the overall scheme, please help to confirm.
3.Below shows the schematic,pls help to check it.
Thanks