TCA9517: Enable pull up resistor

Ryoma Ohashi

Part Number: TCA9517

Tool/software:

Hi team,

Since the device has internall pull up resistor for EN, if the customer wants the IC to be always active, can they left the EN pin floating?

Regards
Ohashi

0 Clemens Ladisch 1 month ago

Guru 318050 points

Yes. But the EN pin can also be connected directly to V_CCB.

+1 Tyler Townsend 1 month ago

Hi Ohashi,

Yes, pin can be left floating, but the internal PU resistance is ~100kohm range. It is a weak PU resistor.

Regards,

Tyler

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