Six-rail supervisor for multi-voltage system monitoring
The Maxim Integrated MAX16055HAUB+ is a multi-voltage supervisor that monitors up to six supply voltages simultaneously, with a single active-low, open-drain reset output. It packages six selectable threshold combinations into a compact 10-uMAX/uSOP surface-mount package, making it a fit for dense boards where separate reset ICs for each rail would consume too much real estate. The reset timeout is fixed at a minimum of 140ms, providing enough hold time for the system power supplies and oscillators to stabilize before the processor is released from reset. The open-drain output lets multiple supervisors share a common reset line through a pull-up resistor, a standard practice in multi-voltage designs.
Temperature grade and deployment context
Rated for -40°C to 125°C ambient operation, this supervisor suits industrial control cabinets, outdoor telecom base stations, and automotive under-hood electronics where the ambient temperature can swing well beyond commercial limits. The wide temperature range also covers engine-bay and downhole applications that see sustained heat.
Sourcing and lifecycle posture
There is no official successor or second-source alternate listed — this is the part for the BOM line.