Class C mDot current consumption

[Mark Makarychev]

Hello,

Does anyone here have any documentation or specs in regards to how much current an mDot draws in its active state? There’s a few topics here about the (deep/stop)sleep mode, ARM mbed’s site states that the mDot draws <18mA while “active”, and I found somewhere that TX/RX use about 28mA/10mA respectively, but that’s about all I could find. Doing some battery tests with the mDot working in class C mode (so no sleep and constant RX between TXs), my calculations show that the mDot draws around 70mA. Does this number sound correct?

Thanks in advance for any info!
-Mark

[Steve Kovarik]

Hello Mark

Page 25 in the Developers Guide at the link below give some mDOt power
consumption numbers.

http://www.multitech.com/documents/publications/manuals/s000612.pdf

-Best Regards

[Mark Makarychev]

Uh-huh, ok, now my calculations seem much more correct. Thank you! Turns out that constantly listening in class C is quite power consuming! Do you happen to know when MultiTech will be adding class B to their mDot library and gateway firmware? Switching to class B in theory should increase my battery life by about 50%. Would be a nice optimization to have!

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