THVD9491-SEP: Unused pin R, A, and B

Moral Assraf

Part Number: THVD9491-SEP

Tool/software:

Hi Team,

I'm using THVD9491-SEP for one direction only so there is no use for R, A and B pins ( RA will be tied to VCC), Should I leave it floating of tie it to GND?

Thanks,
Moral.

2 months ago

+1 Clemens Ladisch 2 months ago

Guru 267780 points

All three pins should be left open.

0 Moral Assraf 2 months ago in reply to Clemens Ladisch

Prodigy 145 points

Thank you!!

0 Moral Assraf 2 months ago in reply to Clemens Ladisch

Prodigy 145 points

Another question came up, Will the THVD9491-SEP work properly with TX only?

+1 Clemens Ladisch 2 months ago in reply to Moral Assraf

Guru 267780 points

Yes.

0 Moral Assraf 2 months ago in reply to Clemens Ladisch

Prodigy 145 points

Thanks!

0 BOBBY 2 months ago in reply to Moral Assraf

TI__Guru 56120 points

Thanks you Clemens for answering this question.

You may see some additional leakage current (into Vcc) with A/B floating but the device itself should still work fine.

Let us know if you have any follow up questions.

-Bobby

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THVD9491-SEP: Unused pin R, A, and B