TMP126-Q1: SIO pin source/sink current capacity

PRAHLAD Supeda

Part Number: TMP126-Q1

Could you please share the drive strength of SIO pin of PTMP126EDCKTQ1 ( Sink/Source current)

In customer circuit there shall be a possibility to sink 5mA current by this SIO pin at 5V VDD. We would like to know whether it makes any problem to this IC?

Datasheet test conditions are 3mA source/sink for SIO pin.

over 1 year ago

0 Jalen Tate89 over 1 year ago

TI__Genius 9675 points

Hi Prahlad,

The datasheet test conditions of 3mA define the logic levels for the device under the 3mA load. The logic level could be undefined with a 5mA sink/source current.

Jalen

0 PRAHLAD Supeda over 1 year ago in reply to Jalen Tate89

TI__Expert 5025 points

Hi Jalen,

In customer circuit there is possibility to sink 5mA current by this SIO pin at 5V VDD. Is this device recommended or do you have any other device recommendaiton?

Do you expect device failure or temporary undefined state whenever 5mA is source/sink, and device may funciton as expected once SIO current reduces to 3mA?

0 Jalen Tate89 over 1 year ago in reply to PRAHLAD Supeda

TI__Genius 9675 points

Prahlad,

Unfortunately I can't comment further on expected device behavior beyond 3 mA current sink capabilities. We don't have any other temperature sensors that meet this 5 mA current sink requirement.

Jalen

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TMP126-Q1: SIO pin source/sink current capacity