xDot power requirements
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Tagged: xDot
Hi,
I’m currently working on a design using the xDot and need some clarification on voltages in the datasheet. It says Operating voltage is 2.4V to 3.57V. What is the absolute maximum voltage? I’m currently using 3.6V batteries in a mDot design and would like to continue using these without having to add a voltage regulator if the xDot is going to be OK with 3.6V.
thanks
Andrew
Hi Andrew,
The xDot’s absolute maximum operating voltage is 3.6V. This absolute maximum is limited by the absolute maximum of several of the onboard parts, including the STM32L151 microcontroller.
Can you tell me more about the batteries that you plan to use? Is 3.6V the nominal voltage, or is it the maximum, fully-charged voltage? If the maximum voltage of your batteries could exceed 3.6V, I would recommend adding an LDO voltage regulator to protect the xDot. Even if 3.6V is the maximum voltage, it would be a good idea to include an LDO just to provide a safety margin.
Tom