2025-03-03 1:11 AM
Hi,
L7987L IC is used for generating -15V from 24V supply. it was working OK up to 12V, upon further increasing Supply Voltage we found arc at the soft start pin.
2025-03-27 9:21 AM
Welcome @Dina, to the community!
Can you please explain in more detail what you mean by ‘arc at the softstart pin’?
Can you please upload a schematic, including the layout around the L7987L (a photo of both is sufficient, preferably as an image and not as an attachment).
Regards
/Peter