TPS51221: Can TPS51220 replace TPS51221?

Paul Yeh

Genius 14445 points

Part Number: TPS51221
Other Parts Discussed in Thread: TPS51220, , TPS51222

Hi team,

Due to shortage problem, so my customer plan to use TPS51220 to replace TPS51221.

But from datasheet comparison, it seems pin11 is different. one is IMON1, the other is FUNC.

And currently they didn't use IMON function.

So can they replace? what kind of external components need to modify?

Please advise

Thanks

over 2 years ago

0 Miranda Gu over 2 years ago

TI__Genius 15297 points

Hi Paul,

Received your question.

I will check it and reply you early next week.

0 Paul Yeh over 2 years ago in reply to Miranda Gu

TI__Genius 14445 points

Miranda,

To add one device-TPS51222.

So please help to compare TPS51220 & TPS51221 & TPS51222 together.

Thanks

0 Miranda Gu over 2 years ago in reply to Paul Yeh

TI__Genius 15297 points

Hi Paul,

Sorry for my late reply.

I checked internally, TPS51220/1/2 are quite old parts, we don't have the comparison table that you need. So I need to make one that you need. Hope to finish it by this week. Appreciate your patience.

0 Paul Yeh over 2 years ago in reply to Miranda Gu

TI__Genius 14445 points

Miranda,

Thanks and please send file to us within this week.

And the most important thing is to tell customer can these three device replace each other or not?

And what kind of external circuit need to be modified?

Thanks

0 Miranda Gu over 2 years ago in reply to Paul Yeh

TI__Genius 15297 points

Hi Paul,

I do find some materials. I will share with you through internal email. Please kindly check your email, and I will close this e2e thread.

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TPS51221: Can TPS51220 replace TPS51221?