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Topic: MuRata overvoltage problem? (Read 440 times) previous topic - next topic

cparrish60

Has anyone heard about the MuRata module failing due to being connected directly to the USB 5 volts (VDD_USB)?  The MuRata data sheet shows pin 4 connected to 5 volts, but the spec sheet says pin 4 cannot be over 3.6 volts.

pert

It looks like Arduino is aware of this issue:
https://github.com/arduino-libraries/MKRWAN/issues/30#issuecomment-422692717
They are planning to make an r2 of the board with fixes for that and another issue that causes excessive power usage:
https://github.com/arduino-libraries/MKRWAN/issues/30#issuecomment-421970738

sslupsky

I posted some instructions about the modifications required to address the VDD_TCXO and VDD_USB here:

https://forum.arduino.cc/index.php?topic=568151.0

cparrish60

I haven't modified my board, but it seems to work ok.

Tirititelu

Has the ABX00017-B board solved the problem of consumption?.

Thanks.

Ayesa


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