Dear, Sir.
My customer is applying LM5060-Q1 for their system.
At this time, RMA(device failure) was happened on the system, so they are asking following
points. Sorry to ask you about this kind of matter, but hoping to get your your advice.
1. VIN = 75V, Absolute Max Rating.
I think it was related to silicon process and it would be a kinf of design spec(not tested
in manufacturing process). I wonder my understanding is correct?
2. VIN = 65V, Operating Max.
They are asking this paramemter is tested in manufacturing process & its frequency(sampling or 100% tested).
Please give your advice against this kind of question.
3. Diode Clamping on VIN pin.
If the over-voltage exceed VIN = 75V, What kind of internal component possible to be broken, first?
PS) I already proposed to add TVS on VIN line because VIN is appying using long cable from external
Super-CAP. When LM5060-Q1 was OFF, Higher voltage could be concerned due to BEMF.
Best Regards,
H. Sakai