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TPA3116D2: TPA3116 inductance hot issue

Part Number: TPA3116D2


Hi Sir

our customer use TPA3116 design as 80W 3ohms; now they meet above issue, need your support,tks!

when the power on withour sound source input connect ectronic load,we test find the inductance is hot;however, if we test the conditons is that input with sound , output is full power we can 

also find the inductance will more and more hot, the sch is above