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power interface for telecom -48V

Expert 1105 points

Hello,

I don't know if this is right forum to ask this question but I want to design a system for telecom operators which provide only -48V for the system. I have checked TI for a possible solution but couldn't find a module/IC that converts -48V to 5V.

I have quite limited knowledge in this but, since I didn't find any solution at TI, I couln't help but think maybe all I have to do is invert GND and -48V and use it as 48V.


Can you please comment about this?

thanks

rifo