TPS53014 the variation of the switching frequency?

Dear John Tucker,

Thank you very much for reply.

Best regard.
Bob Lee.

Dear John Tucker,

May I ask a add question about TPS53014?

Would you have the following conditions variation of the switching frequency of other than Fig4, Fig5?

(conditions)
Vout =5.1V
Iout  =0～9.5A
Temperature = 0℃～100℃

Best regard.
Bob Lee.

Dear JohnTucker,

May I ask add a question about Fig4, Fig5 and thermal shutdown?

・About Fig4, Fig5
Is Fig4, 5 measurement data?
Or is it calculation data?

・About thermal shutdown
datasheet describe.
As long as Vin rises,Tj must be kept less than 110℃.

What Vin is rise?

Tj must be kept less than 110℃.
110℃ is it recommend?
Or is it absolute?

Best regard.
Bob Lee.

Dear John Tucker,

Thank you very much for reply.

Best regard.
Bob Lee.

Dear John Tucker,

May I ask a add question?
Could you teach minimum and maximum of Minimum OFF time?

Best regard.
Bob Lee.

Dear John Tucker,

Your prompt reply will be highly appreciated.

Best regard.
Bob Lee.

Dear Qian Chen, JohnTucker

Thank you veru much for reply soon.

Best regard.
Bob Lee.

Dear Qian Chen and JohnTucker,

May I ask a question?
Could you teach maximum of Output UVP delay time?

Best regard.
Bob Lee.

It is 1 msec typical.  I am not sure if there is any other data for it,

Dear JohnTucker,

Thank you very much for reply.

Could you check if there is measured data?
I hope you reply.

Best regard.
Bob Lee.

Dear JohnTucker,

May I ask a question about Over current resistor values?

Table 1 description OCL resistor value but,
What is resistance value when Vtrip is 0.41V?

Best regard.
Bob Lee.

The datasheet says the range for Vtrip is 0.05 V to 0.336 V.

Hi Bob,

The maximum output UVP delay time is 1.2ms.

Thanks

Qian

Dear JohnTucker,

Thank you very much for reply.

I can understood Vtrip range 0.05V to 0.336V.

I want to know resistance value set to Vtrip voltage 0.41V.

I hope to reply.

Best regard.
Bob Lee.

Dear Qian Chen,

Thank you very much for reply.

Best regard.
Bob Lee.

0.41 V is outside of the recommended range for Vtrip.

Dear JohnTucker,

Thank you very much for reply.

Can use 0.41V as Vtrip voltage?
Or can not?

Best regard.
Bob Lee.

The datasheet does not mention it. Why do you want to operate at that point?

Dear John Tucker,

I am confirming My customer about reason of 0.41V.
I feedback it.

Best regard.
Bob Lee.

Dear Qian Chen,

May I ask a qestion about UVP?

Could the output voltage recover during the UVP delay time?

My customer says although the output voltage is restoring during the delay time,
Is TPS53014 such behavior?

Best regard,
Bob Lee.

Hi Bod,

This information is not provided on datasheet.

I will try to get a EVM to take a look.

Thanks

Qian

Dear John Tucker,

I feedback it.

If case of raising the overcurrent protection operation point,
I want to confirm it.

I thought that I wanted to grasp only the setting values, and I asked a question.

Can I use a resistor and Vtrip voltage other than Table 1?

Best regard.
Bob Lee.

Dear Qian Chen,

Thank you very much for reply.
I will wait for the reply.

Best regard.
Bob Lee.

Hi John,

The trip voltage is up to 0.336V.

Thanks

Qian

Dear Qian Chen,

How is the EVM situation?
I hope to reply.

Best regard.
Bob Lee.

Hi Bob,

I have ordered EVM, and it should arrive quickly.

I will keep you updated once it arrives.

Thanks

Qian

Dear Qian Chen,

Thank you very much for your response.
I hope for a your update.

Best regard.
Bob Lee.

Dear Qian Chen,

There is still no reply.
When will you be able to answer that update?

Best regard.
Bob Lee.

Dear　Qian Chen,

Regarding output voltage recover during the UVP delay time,
There was feedback it from my customer.

Issue was of Customer's load system.

Thank you very much for variously response.

Best regard.
Bob Lee.

Hi Bob, 

Thanks for the update.

Thanks

Qian