Selectable supervisor monitors positive and/or negative supplies

Milpitas, Calif. – Linear Technology’s LTC2909 is a dual low-voltage supervisory IC that can monitor one of three possible polarity combinations. The LTC2909 can monitor two low-voltage inputs: Positive, negative, or both, for under-voltage, over-voltage, or either to its corresponding supply. It can also monitor a single supply (positive or negative) for under-voltage or over-voltage simultaneously. The chip’s adjustable trip thresholds are set with an external resistive divider network.