TPS543C20: IHSOC accuracy

Yuto Sakai

Mastermind 6100 points

Part Number: TPS543C20

Hi,

Could you tell me the min / max value or accuracy (± xx%) of IHSOC.
It does not have to be the guaranteed value.

Best Regards,
Yuto Sakai

over 7 years ago

0 JohnTucker over 7 years ago

TI__Guru**** 191445 points

Let me see if we have any limits for that.

0 JohnTucker over 7 years ago in reply to JohnTucker

TI__Guru**** 191445 points

TPS543C20: +/-10% for 35A or higher, +/-15% for 25A to 35A. Let me know if you need anything further.

0 Yuto Sakai over 7 years ago in reply to JohnTucker

Mastermind 6100 points

Hi John-san,

Thank you for your reply.
I understand that the precision you taught meets the threshold accuracy of Lowside-FET detection (valley detection).
I am watching from another E2E post that accuracy varies depending on the threshold set with RILIM.

I want to know the accuracy of the threshold of Highside-FET detection(peak detection).
As I mentioned in my first post, it is described as 60 A(typ) in the datasheet,
but can I think that accuracy of this is also ±10%?

Best Regards,
Yuto Sakai

0 JohnTucker over 7 years ago in reply to Yuto Sakai

TI__Guru**** 191445 points

Sakai-sa,

That 60 A parameter is not tested, it is only specified as typical "by design". Since it is not a tested parameter, we will not have any statistical data for it. I know you have a similar post working for another part. Let me see if I can combine these two requests.

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TPS543C20: IHSOC accuracy