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TPA3111D1-Q1: TPA3111D1-Q1: The protection mechanism

Part Number: TPA3111D1-Q1


Hi sir:

    We test the TPA3111D1-Q1. And We find when outP connect to Vdd the chip is  protected.But when OutP Pin connect to Vcc=Vdd+Vdiode. 。It make noise。Then we test OutN connect to Vcc it also be protected.