Using copper pour for secondary GND on InnoSwitch3-CE

Posted by: latk on 06/26/2023

Hi, can I use copper pour/plane for the secondary side GND on InnoSwitch3-CE.

Is the secondary side ground the IS pin or the GND pin.

Comments

Hi Latk,

Thanks for choosing PI product. The secondary GND terminal of InnoSwitch3-CE must be connected directly to the output capacitor GND Terminal. The secondary side IC grounding is the GND pin not the IS pin. IS pin is for output current sensing.