ISO1432: Supply voltage for VCC1 and VCC2

MESH

Part Number: ISO1432

Hello

I am designing RS-422 interface circuit and RS-485 interface circuit using ISO1432.

Regarding the power supply to ISO1432, I am considering the following two cases, but let me confirm that there is no problem with the operation of ISO1432 in either case.

<Case1> VCC1 = 5V, VCC2 = 3.3V

<Case2> VCC1 = 3.3V, VCC2 = 5V

Regards,

MESH

over 2 years ago

+1 Dushmantha Rajapaksha over 2 years ago

TI__Intellectual 1960 points

Hi MESH-san:

Thanks for posting your question on E2E!

There are no issues with either of your use cases. In fact, VCC1 and VCC2 values of ISO1432 can be independently set to any voltage as long as they are within the datasheet recommended operating conditions. A snippet of the datasheet is below.

Regards,

Dushmantha

0 MESH over 2 years ago in reply to Dushmantha Rajapaksha

Intellectual 830 points

Hi Dushmantha,

Thank you for your reply.

Your reply is very helpful for me.

Regards,

MESH

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ISO1432: Supply voltage for VCC1 and VCC2