TIC12400: paralleling inputs to get more wetting current

ajayt

Genius 9555 points

Part Number: TIC12400

HI team, Could I connect 2 inputs each sourcing 15mA to give 30mA capability?

over 6 years ago

0 Andrew_Mason over 6 years ago

TI__Expert 6395 points

Hello Ajayt,

This would only work in the continuous mode. In the polling mode the device will turn on the current sources individually.

Regards,
Andrew

0 ajayt over 6 years ago in reply to Andrew_Mason

TI__Genius 9555 points

Hi as a follow up question on teh ADC

I have a technical question with regards to the TIC12400…. You mentioned before that the ADC measures voltages from 0-6V (1024 max codes), but in the data sheet it mentions a VS Ratio bit that can be applied to increase the voltage measurement to 30Vdc – is this only for measuring the VS supply or can it be applied to the input monitor pins as well?

0 Andrew_Mason over 6 years ago in reply to ajayt

TI__Expert 6395 points

Hello Ajayt,

Yes this is correct, the scaling is only for the VS measurement.

Regards,
Andrew

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TIC12400: paralleling inputs to get more wetting current