What the 3V–14.4V input range means for your rail sequencing
The ADM1166ACPZ accepts any supply rail from 3V to 14.4V, covering the common intermediate bus voltages (3.3V, 5V, 12V) without needing a separate bias regulator. That single wide-range input simplifies the power tree — one part monitors and sequences rails across a 12V backplane down to a 3.3V core. Quiescent draw is 4.2 mA typical, which is the total current the sequencer itself consumes from that input rail. For a 12V bus this is about 50 mW of overhead — negligible next to the loads being sequenced, but worth budgeting if the part is powered from a always-on auxiliary supply with a tight current ceiling. The sequencer's internal references and comparators are trimmed over this band, so the threshold accuracy spec holds at both a cold start in an unheated cabinet and a hot rack in a crowded panel.
Package and board-fit note for the 40-LFCSP
Supplied in a tray, not tape-and-reel. For high-volume pick-and-place, a tray-to-tape conversion or a tube feeder alternative may be needed — confirm the feeder compatibility before committing the line.
Active production and compliance baseline
No minimum order quantity is imposed at the quoting stage.