TCA9617A: Internal Pull-up resistor value and delay

FARMAN ULLAH

Part Number: TCA9617A

Hi,

In section 8.2 "Functional Block Diagram" of datasheet,

1. How the internal pull-up resistor value connected to EN pin is decided?

2. Is there any RC delay associated to this port?

Thanks

0 Clemens Ladisch over 4 years ago

Guru 323940 points

1. The EN pin sources at most 25 µA, so the resistor is larger than 212 kΩ.

2. When EN is externally driven, the pull-up resistor has no effect on the fall/rise time.

0 Eric Schott1 over 4 years ago

Thanks Clemens!

Hi Farman,

Let us know if you have any more questions.

Regards,
Eric Schott

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