TPS7B7701-Q1: TPS7B7701

Shreeharsha kandlaje

Prodigy 180 points

Part Number: TPS7B7701-Q1

Hello,

In one of the design, there is a erroneous connection made between IN and VCC pin.

I am not intending to use the internal regulator VCC pin in my design.

Do you foresee any issue if i short IN pin with VCC?

Regards

Shreeharsha K

Robert Bosch

over 5 years ago

0 JCHK over 5 years ago

TI__Guru 50190 points

Hi Shreeharsha,

The danger here is violating the absolute maximum voltage rating of the VCC pin:

If the voltage on IN is less than 6V, then this will not damage the IC. However the VCC pin is used for internal circuit biasing so if a higher voltage is on this pin, the device may not operate within the limits as specified in the electrical characteristics table.

I hope this answers your question.

0 Shreeharsha kandlaje over 5 years ago in reply to JCHK

Prodigy 180 points

Hello,

Maximum input at IN pin is 5V.

So based on the above answer, can i summarize as no problem due to this IN pin and VCC pin short?

Any comment on the current consumed by the IC under this condition?

regards

Shreeharsha K

0 JCHK over 5 years ago in reply to Shreeharsha kandlaje

TI__Guru 50190 points

Hi Shreeharsha,

I can't say for sure that there is no problem as the higher voltage on the internal bias circuity might impact performance. My suspicion is with 5V on this pin, you may see a minor increase in the supply current. I can say that the device will not be damaged.

I hope this answers your question.

0 Shreeharsha kandlaje over 5 years ago in reply to JCHK

Prodigy 180 points

thank you!

Power management

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TPS7B7701-Q1: TPS7B7701