About LM5165's PGOOD's Comparater Rising / Falling Detect

Pokkun

Genius 4695 points

Other Parts Discussed in Thread: LM5165, TPS62560

Hello.
My customer is currently in using LM5165,now.
I have gotten a question about this product .

So, please teach me about LM5165.

Could you help us?

＜Customer's designing circuit configuration＞

＜Question＞

When the customer want to think about the MIN / MAX value of LM5165's PGOOD's comparater Rising / Falling detect.
Are we OK about Considering Vref and an external pull-up resistor?

If your answer is "No",
Could you tell me about PGOOD's Rising / Falling MIN / MAX range？

＜Customer needs＞

Customers are performing the reset process of microcomputer at the output voltage value of the LM5165.
Customers doesn't want to stop the TPS62560 in LM5165's PG prior to the reset process .

Best Regards,

Pokkun

over 8 years ago

0 Davor Glisic over 8 years ago

TI__Expert 7955 points

Hi Pokkun,

Based on the characterization data, we have derived the following PGOOD comparator threshold limits:
FB rising: 90% / 97% (MIN/MAX)
FB falling: 85% / 90% (MIN/MAX)

Regards,
Davor

0 Pokkun over 8 years ago in reply to Davor Glisic

Genius 4695 points

Thank you very much for the answer ! !

Please tell me additional question.

Does this value include temperature range ?
(Yes or No?)

If that answer is "No", it is typ value ?

0 Pokkun over 8 years ago in reply to Pokkun

Genius 4695 points

Sorry.

Intended adds so may not be understood .

I say the typ value that have not been taken into temperature change(only the difference in performance due to the difference of the chip) .

0 Davor Glisic over 8 years ago in reply to Pokkun

TI__Expert 7955 points

Hi Pokkun,

Yes, the derived limits include the temperature range.

Regards,
Davor

Power management

Power management forum

About LM5165's PGOOD's Comparater Rising / Falling Detect