Hello,
We are using an input of the DA14583 to monitor a normally closed sensor. Since our device runs on a CR2032 coin cell we are concerned about energy consumption.
Currently we are using the integrated pull down resistor which is only 25k, so current is quite high.
Do you have a reference design with the lowest energy consumption possible for this kind of use case?
Can you suggest another implementation method?
Best regards Vincenzo
Device:
Hi Vincenzo,
I dont quite get the question, you would like a reference design that does what exactly ? Since its a 583, deep sleep is out of the question since the device doesn't support this mode, but only the extended sleep is supported. If the extra current that you see is due to leakage, that has nothing to do with the power consuption but with the hw design that you have.
Thanks MT_dialog
对不起,我要求最大瓦尔ue of R1 and R2 in order to reduce power consumption as much as possible while still being able to reliably detect the signal with the DA14583. Please check the attachment.
Hi vincenzo,
Since you are using a pulldown resistor i dont see a problem in using a large R2 resistor in order to minimize the leakage current, the 583 should be available to track the signal from the switch, i dont think that a large value that would minimize the leakage would cause issues. Theoretically you can use a resistor of a maximum 360K as a pulldown.
Thanks MT_dialog
Thank you very much. That helps me a lot.