MAX16009TG+

The MAX16009TG+ is an adjustable quad window voltage detector from Analog Devices, housed in a compact 4mm x 4mm TQFN package. This device enhances system reliability by monitoring multiple supply voltages, signaling a fault when any voltage exceeds its overvoltage threshold or falls below its undervoltage threshold.

Key features include user-adjustable thresholds that can monitor voltages down to 0.4V, set externally with three resistors. The device offers 1.5% accuracy over the full operating temperature range of -40°C to +125°C. Each monitored threshold has an independent open-drain output, which can be wire-OR'ed for a single fault signal. The outputs have internal 30µA pullups but can be externally driven.

The MAX16009TG+ includes a margin input to disable outputs during testing and a manual reset input. It also provides a reset output that deasserts after a reset timeout period once all voltages are within specifications. The reset timeout is internally set to 140ms but can be externally adjusted with a capacitor.

This voltage detector is suitable for applications such as storage equipment, networking and telecommunications equipment, multivoltage ASICs, and servers. It is specified for correct output logic state down to VCC = 1V and comes in a 24-TQFN package.