LMG2100R044: Current Sense question

Andrew Lau

Prodigy 50 points

Part Number: LMG2100R044

Tool/software:

Hi,

Could you help to verify Primary Current Sense Resistor connection is ok for phase shifed full bridge topology?

5 months ago

0 Adithya Ankam 5 months ago

TI__Prodigy 725 points

Hello Andrew,

Yes the connection for Primary Current Sense Resistor is fine.

You can see that the AGND and PGND are internally shorted so Please make sure that the AGND is floating and it is not connected to the Input as it can short the current sense resistor.

Also you can check this TI article on Phase- Shifted Full- Bridge Converter Fundamentals

-> https://www.ti.com/document-viewer/lit/html/SLUP414

Regards,

Adithya Ankam

Power management

Power management forum

LMG2100R044: Current Sense question