i.MX ProcessorsのトピックRe: MMPF0100NPZES Coin Mode Current Draw

MMPF0100NPZES Coin Mode Current Draw

TerryMcHenry — Tue, 19 Aug 2014 15:12:40 GMT

When the system is in Coin Cell mode, with Vin = 0V, the current drawn by the LICELL pin (VSNVS_3V Domain) is around 75 uA, but after about two minutes this current increases to 180 uA and then slowly returns to 75 uA.

Is normal/acceptable? What is happening?

Re: MMPF0100NPZES Coin Mode Current Draw

CarlosCasillas — Tue, 19 Aug 2014 23:10:12 GMT

reyes, could you please check?

Re: MMPF0100NPZES Coin Mode Current Draw

reyes — Wed, 20 Aug 2014 15:38:35 GMT

Hi Terry McHenry,

What could be happening here is that additional current may be drawn in the coin cell mode when RESETBMCU is pulled up to VSNVS due an internal path from RESETBMCU to VIN and this could be seen as a normal known behavior.

Have a great day,
Jose Reyes

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------