Drain Pin of TOP heating and damaged
We have designed an SMPS with two coils of 12V@0.5A. Although our actual load is 3W total.
We manufacture approx 5000 SMPS per year since last 15 years. We found that there are almost 50nos per year are getting damaged.
Most of them have Drain PIN of TOP245YN damaged i.e. the TOP is blasted.
Could you suggest me any solution ?