The LTC2900-1CMS#PBF is a quad programmable Supply Monitor with adjustable reset timer and open-drain RST output. It is suitable for systems with up to four supply voltages. One of 16 preset or adjustable voltage monitor combinations can be selected using an external resistor divider connected to the program pin. The preset voltage thresholds are accurate to ±1.5% over-temperature. The reset delay time is adjustable using an external capacitor and the manual reset input may be used with a momentary switch to issue reset pulses with programmed duration. Tight voltage threshold accuracy and glitch immunity ensure reliable reset operation without false triggering. The RST\ output is guaranteed to be in the correct state for VCC down to 1V. The LTC2900-1 features an open-drain RST\ output. The 43μA supply current makes the LTC2900 ideal for power conscious systems and it may be configured to monitor less than four inputs.
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