INA381: Alert sink current

Mathieu Bourassa

Prodigy 10 points

Part Number: INA381

Tool/software:

How much current does the ALERT pin is able to sink. It doesn't seem to be specified in the datasheet

3 days ago

0 Louis L 3 days ago

TI__Expert 3980 points

Mathieu,

Thank you for your patience.

We are currently out of the office for the U.S. Thanksgiving holiday. We will reply to this thread when we return on Monday, 12/2.

Louis

+1 Clemens Ladisch 2 days ago

Guru 280200 points

The datasheet guarantees 3 mA for a voltage drop of 300 mV, and figure 37 does not go above 10 mA. There is no reason to go higher; the suggested 10 kΩ pull-up results in 0.5 mA.

0 Carolus Andrews 11 hours ago

TI__Mastermind 19040 points

Mathieu,

Clemens has hit the nail on the head here. Is there a concern of a higher current here potentially damaging the device?

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INA381: Alert sink current