Power

Supply voltages assessed by supervisor circuit

28th February 2022
Mick Elliott

The MAX16191 from Maxim Technology is a single-channel, ultra-high accuracy supervisor circuit that monitors low core system supply voltages.

The reset output asserts when the monitored supply voltage falls outside of the factory-trimmed undervoltage/overvoltage threshold window.

The reset output deasserts after the reset timeout period when the monitored supply voltage falls within the threshold window. It is active-low and available in open-drain or push-pull configuration.

The MAX16191's nominal input voltage level is factory-programmable to any voltage between 0.6 V to 0.9 V.

Together with the ±2% to ±5% undervoltage/overvoltage window threshold range, the MAX16191 offers the flexibility to monitor a wide range of system supply voltages.

The undervoltage/overvoltage threshold levels are factory programmable and are symmetrical with respect to the nominal input voltage setting.

The MAX16191 is available in a small 2 mm x 2 mm 8-pin TDFN side-wettable package and operates over the automotive temperature range of -40°C to +125°C.

Applications include automotive, ADAS and multivoltage ASICs.

The device is in stock at distributor Digi-Key Electronics.

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