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TAS5805M: efficiency

Part Number: TAS5805M


Dear all

I  tested the relationship between switching frequency and the efficiency of TAS5805M-EVM.

Test condition:TAS5805EVM, Ferrite Bead, PVDD=16V;Load=6ohm;Output power=10W;

I think the efficiency will decrease with the switching frequency, because of

the switching loss. But the efficiency increase with the switching frequency.

Test result:

The test result is:

Fsw=384kHz;IIN=2.222A

Fsw=480kHz;IIN=2.157A

Fsw=576kHz;IIN=2.123A

Fsw=768kHz;IIN=2.073A

Thanks and best regards,

Ella