TPS2663: Threshold for POR

Dieter Dornberger1

Prodigy 160 points

Part Number: TPS2663
Other Parts Discussed in Thread: TPS2595, TPS25982

Hello,

what are the threshold voltages for POR (TPS2663, not in data sheet)

over 5 years ago

0 Rakesh over 5 years ago

TI__Guru** 106781 points

Hi Dieter,

4.5V is the minimum operating voltage. Let me check on Vin POR hysteriss and thresholds?

By the way, what is your application ? Do you want to use it for 5V rail ?

Regards, Rakesh

0 Dieter Dornberger1 over 5 years ago in reply to Rakesh

Prodigy 160 points

Hi Rakesh,

POR hysteresis and thresholds are very important for our design, cause we have some voltage drops from the power supply to the TPS2663.
Yes, we want to use it for 5V rail.

Regard, Dieter

0 Rakesh over 5 years ago in reply to Dieter Dornberger1

TI__Guru** 106781 points

Hi Dieter,

I am checking whether we have data for that parameter. Any specific reason to use 60V rated device for 5V rail ? we have TPS2595, TPS25982 which are more suitable for 5V rail application.

Regards, Rakesh

0 Rakesh over 5 years ago in reply to Rakesh

TI__Guru** 106781 points

Hi Dieter,

The typical values of Vin_POR_rising threshold is 4.3 V and falling threshold is 4.2V. So, the typical POR hysteresis is 100mV

Regards, Rakesh

0 Dieter Dornberger1 over 5 years ago in reply to Rakesh

Prodigy 160 points

Hi Rakesh,

thank your for this information. We start our design with TPS2595

Thanks & Regards

Dieter

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TPS2663: Threshold for POR