Hi TI Floks,
Good day to you.
From PCN Notification# 20170609003, we understand that there is ABSOLUTE MAXIMUM RATINGS table update on TI MPN LMZ31710RVQT:
Please teach :
Why this IC only allow 1 time reflow ? what are the consequences if reflow more than once ?
Understand from TI PCN that the peak temp for reflow is 240, this is to prevent solder intrusion, what will be the failure symptom of solder extrusion in terms of functional prospect eg Short circuit or Open circuit ?
To accurately represent the device characteristics. A potential issue has been identified through ongoing reliability monitor (ORM) testing showing solder extrusion on some devices after reflow at 260C peak temperature.
Best regards
Jiang WeiJi
