Other Parts Discussed in Thread: LM339, TLV4021, TLV7042, TLV7041, TLV7021, TLV7022, TLV7081, LM393LV, LM139
My customer uses LM393B as voltage detection.
when there is input power and ambient temperature is at >0C, it works normally as below.
when there is input power and ambient temperature is at 0 - -30C, LM393B works strangely as below.
Vo has strange pulse but IN+ is lower than IN-.
the schematic is as below.
from Datasheet, LM393B should work at >2V and -25C.
Can you help check what happen?