Other Parts Discussed in Thread: REF34-Q1
Pin 1 (NC) of the DBV package is used as "Test pin, connect from 0V to 18V". We need to use this part in one of our designs as an alternative where we left this pin floating. I've tested multiple boards at room temperature using REF3450SQDBVRQ1 and leaving pin #1 disconnected; the 5V output looks very good. We could solder a bridge from GND (pin #2) to pin #1 into each board to satisfy the "connect from 0-18V" requirement, but that would add board assembly cost. Can you please tell me what performance parameters might be impacted if we leave pin #1 floating? Do we risk temperature dependence, or complete device failure, or is this simply a matter of trading off a small percentage of output voltage accuracy?
Much thanks! Falk
