Clearances between nets in SMPS
Posted by: treez
on
Hi,
We are doing a LNK3209G buck, please do you have a table of the clearances for the PCB layout?....eg, clearances upstream and downstream of the fuse...clearances of the Buck switching node to "ground" etc etc.....for the different pollution level environments etc
Presumably its page 53 of this...
https://www.ipc.org/TOC/IPC-2221A.pdf
..though please could you help with solder resist types etc...and clearances before and after the mains diode bridge?
Hi,
Thank you for using PI-Forums,
we dont have a copy of what you are looking for. but for clearance and creepage with different pollution degree, material group and power supply class.
we use IEC/EN 60950 and 62368. we use the values in the table for the respected standards and will compute for clearances and creepage one by one.
regards,
Sigris