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Hi Team,
We have an application question regards to INA301's /ALERT pin sink capability. Hope you can help to advice, thanks.
Can the ALERT pin can be used to drive an opto-coupler ?
What is the maximum current sinking capability of /ALERT pin ? Seem I could not find information from the datasheet, can you help to advice ?
Estimation from data sheet figure 33 reveal the output impedance is ~23ohm (100mV/4.3mA) when active, is it right ?
Let's say if the biasing of the opto is 10mA, and its voltage drop at 10mA is Vdrop, and using 5V pull up rail. Can I calculate the R-pullup using 5V - Vdrop - (23ohm*10mA) = R-pullup * 10mA ?
Look forward to your comments, thanks.