PMP4466: GND Problems

Erjon Ameti

Part Number: PMP4466

Hello

We are having some problems in understanding the meaning of the second ground and why is the capacitor connected to both of these grounds ?!

over 4 years ago

0 Ryan Manack over 4 years ago

TI__Intellectual 2610 points

Hello,

This is an isolated supply so it has two separate grounds. This is for safety reasons so if someone touches the secondary, they do not get connected to AC.

Take a look at this E2E post to understand the capacitor's role

https://e2e.ti.com/support/power-management/f/196/p/529895/1927727

Thanks,
Ryan

0 Erjon Ameti over 4 years ago in reply to Ryan Manack

Prodigy 60 points

Thank you very much.

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PMP4466: GND Problems