ISO1212: Power consumption if using only 1 of 2 channels

Hong En Chew

Part Number: ISO1212

Hi,

If I use only Channel 1 of the ISO1212 part, will how I connect the unused pins affect the quiescent current consumption?

Is it best practice to leave all the Channel 2 pins (5, 9, 10, 11, 12) unconnected?

Thank you!

Best Regards,

Hong En

over 5 years ago

+1 Koteshwar Rao over 5 years ago

TI__Guru 57515 points

Hi Hong,

Please note that the quiescent current ICC1 that is specified in section 6.9 of ISO121x datasheet is not a normal operation current, this is the current for the condition where all the pins on side2 are unconnected or no input signal applied (i.e., voltage at IN is 0V). ICC1 will slightly increase as a signal is applied at IN and as it switches upto 4Mbps.

Hope this answers your question, thanks.

Regards,
Koteshwar Rao

0 Hong En Chew over 5 years ago in reply to Koteshwar Rao

Prodigy 170 points

Thanks Koteshwar, appreciate the clarification.

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ISO1212: Power consumption if using only 1 of 2 channels