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LM5164-Q1: Fsw accuracy.

Kengo.Y

Guru 10515 points

Part Number: LM5164-Q1

Hi team,

I'd like to know about the accuracy of switching frequency.

My customer is inspecting the switching frequency in the shipping inspection.
Of course, the input voltage and the load are fixed.
In this state, how much does the switching frequency change?
Is it about +/-20%??
I know this spec does not guarantee.

Sincerely.
Kengo.

over 2 years ago

0 Daniel Li14 over 2 years ago

TI__Mastermind 27030 points

HI Kengo:

let me see whether I can get answer from design. the major impact to the frequency will be On time tolerance which I also can't find at datasheet.

In fixed Vin and Load, I think On time will be key impact to the frequency.

Thanks

0 Kengo.Y over 2 years ago in reply to Daniel Li14

Guru 10515 points

Hi Daniel,

Thank you for your reply.

Yes, I know the major impact is On-time tolerance.
Could you tell me the On-time tolerance?

Sincerely.
Kengo.

+1 Daniel Li14 over 2 years ago in reply to Kengo.Y

TI__Mastermind 27030 points

HI

it will have roughly +-20% tolerance

Thanks