System power supply VSYS - Mikromedia for STM32 M4

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ZbynekSkvor
Posts: 28
Joined: 18 Nov 2016 09:09

System power supply VSYS - Mikromedia for STM32 M4

#1 Post by ZbynekSkvor » 22 Jan 2022 16:25

Hello,

I need to learn specifications for Mikromedia for STM32 M4. What is the range of source voltages connected to "System power supply VSYS" pin?

Sorry to bother, but I am unable to find this information in docummentation.

Regards

Zbynek
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hexreader
Posts: 1785
Joined: 27 Jun 2010 12:07
Location: England

Re: System power supply VSYS - Mikromedia for STM32 M4

#2 Post by hexreader » 26 Jan 2022 00:30

I am just a hobby user, but I think I know the answer.

The battery management IC MCP73832 seems to be the critical device regarding power range. Datasheet states 3.75 Volts to 6 Volts as the acceptable range.

My Mikromedia for STM32 M4 board (rev 1.00) seems to operate happily from a 3.8 Volts supply.

In short.... 3.75 to 6 Volts is the acceptable range for Vsys, if I understand correctly
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