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Battery Management System
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MCP2517 - 3.3 V reference #19

Open SmugglerSMR opened 4 years ago

SmugglerSMR commented 4 years ago

During tests of MCP2517 with Rpi, I noticed that CAN controller heats up. Not significantly though, but makes a small smell (I used 5V power). I found 2 schematics which uses 3.3V for powering MCP2517FD. Even that datasheet claims that chip can handle up to 5.5V, it will be wise to create a 3.3 V point with either a Linear Reg or a very good resistor and 100nF capacitor for smoothing.

The image below is one of them. I will research some Lin Regs later. @liamkinne what's your opinion? It definitely may prolong the life of those controllers. изображение

SmugglerSMR commented 4 years ago

This is how it suppose to look like from datasheet recommended diagram.

изображение