21.09.2012, 02:32 PM
For reference, my additional input to Matthew,
Zitat:Dear Matthew,
additional to the mail from today,
i now have changed the faulty ic on a different testboard, which failed without having the capacitive pull-up at no time.
Testing the signals on this chip gives excellent boot-up-performance with just showing a nice log-function caused by the bulk-capacity. /SHDN is also without any problems.
So i guess, the IC i mentioned before is in a stage of pre-fail.
As i say first, the faulty chip never had this C13 between VDD and /SHDN.
The failed IC marks:
ETJ 102
NNHH3GT
The "strange" IC we talked before marks:
ETJ 105
NNHH3GT
The replacement IC marks:
ETJ 015
NNHH3GT
Kindly regards,
Christian W.