TPS65910: NRESPWRON pull down

Takashi Onawa

Part Number: TPS65910

Hi Team,

Do we need to put pull down resister on NRESPWRON pin out? If yes, why is it needed?

I can see the pull down resister in the following Fig, but some ref design has the 10k pull down on the line. So I didn't make sure if it must be needed or not.

Regards,

Takashi Onawa

over 6 years ago

0 Kevin LaRosa over 6 years ago

TI__Genius 17380 points

Hello Onawa-san,

Today is a national holiday in US, our engineers will provide response tomorrow.
Thank you for your patience.

0 Brian Berner over 6 years ago

TI__Mastermind 30280 points

NRESPWRON is a push-pull output that pulls-down in the OFF state. It does not require a pull-up or pull-down resistor.

Sometimes a pull-down resistor is used by the designer who is concerned that the input pin needs a defined state, so a pull-down resistor is added to the schematic to show the default state. It is not necessary in most cases.

0 Takashi Onawa over 6 years ago in reply to Brian Berner

TI__Genius 13200 points

Hi Brian-san,

Thanks.

I understand that it must be required but we can put it on the line.

Regards,

Takashi Onawa

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TPS65910: NRESPWRON pull down