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The SRTC power consumption and a LiCELL battery life

Question asked by George Fukutomi on Nov 17, 2014
Latest reply on Dec 11, 2014 by Yuri Muhin

Dear all,

 

We use i.MX6 with MMPF0100 for our product.

When an external power supply is not connected, it is described in the datasheet that SRTC-block current consumption is 41uA.

=> Page 30 : http://cache.freescale.com/files/32bit/doc/data_sheet/IMX6SDLCEC.pdf

 

For example, when we refer to SDP and use the Li-Cell battery(Panasonic : ML621 - 5mA/h) for RTC, it can keep up RTC only for 122 hours.

* 5mA / 41uA ≒ 121.9hour (≒5.08days)

If this is true, we need to change into the battery of larger capacity.

 

Is there any way of reducing "41uA" keeping up RTC?

 

Best Regards,

George

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