TPS62871-Q1: Enable with open drain

Kazuki Itoh

Part Number: TPS62871-Q1

Hi team,

Is it allowed to enable TPS6287x with open drain signal as shown below?

Regards,

Itoh

0 Tanvee over 2 years ago

Hi Itoh,

It is not recommended to leave the EN pin unconnected. I would not suggest using it.

Can you share more detail on these configuration requirements?

Thanks, Tanvee

0 Kazuki Itoh over 2 years ago in reply to Tanvee

Hi Tanvee-san,

I don't mean I'm laeving EN pin floating.

I mean EN is pulled up to VIN, and open-drain control signal is connected to EN directly as shown in the schematic I attached.

Does it make sense?

Regards,

Itoh

+1 Tanvee over 2 years ago in reply to Kazuki Itoh

Hi Itoh-san,

I would not expect this approach will create problems for device behavior. It can consume from supply during disable mode.

Can you share more detail on an application that requires for this setup?

Thanks, Tanvee

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