TUSB2036: BUSPWR pin pull-down requirements

Rob Rice

Part Number: TUSB2036

Want to know if BUSPWR pin can be pulled low with 1K resistor instead of straight ground. I need to pull this pin high during manufacturing for certain downstream testing.

over 5 years ago

0 David (ASIC) Liu over 5 years ago

TI__Guru*** 140055 points

Rob

You can pull down /BUSPWR pin through a 1k resistor.

Thanks
David

0 Malik Barton57 over 5 years ago

TI__Guru 64326 points

Rob,

This should be okay as long as you can guarantee the voltage on this pin is lower than 0.8V when just pulled down by 1k resistor.

0 Rob Rice over 5 years ago in reply to Malik Barton57

Prodigy 70 points

Thanks Malik,

It looks like all I need to do is draw 1µA from the pin to pull it low. @1µA x 1K I would have a voltage of 1mV on the pin. Does that sound right?

0 Malik Barton57 over 5 years ago in reply to Rob Rice

TI__Guru 64326 points

Rob,

This sounds correct, please let me know if you have any issues.

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TUSB2036: BUSPWR pin pull-down requirements