The 27 selectable thresholds are specified with an overall accuracy of ±1.5 per cent without the need for costly 0.1 per cent external resistors. LTC2915 is offered in low-profile (<1mm) 8-lead TSOT-23 and 3mm x 2mm DFN packages, with guaranteed specifications across the -40°C to +125°C temperature range.
LTC2915 includes two three-state input pins that select one of nine internally programmed thresholds: 12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1.0V, or an adjustable 0.5V. A third three-state input determines if the input threshold is -5 per cent, -10 per cent or -15 per cent below the selected voltage level, allowing for margining.
LTC2916, a variation on LTC2915, offers the same nine input thresholds, but with a fixed -5 per cent tolerance. However, LTC2916 includes a separate manual reset input for a simple push-button interface. Both LTC2915 and LTC2916 operate from a single 1.5V to 5.5V supply and consume 30uA of quiescent current. LTC2915/LTC2916 input comparator’s glitch immunity ensures reliable reset operation without false triggering.
Both LTC2915 and LTC2916 are available in commercial, industrial and automotive temperature grades, with pricing beginning at $1.05 each, in 1,000-piece quantities. |
