Reset supervisor for industrial and automotive rails
The MAX6458UKD0B+T from Analog Devices is a single-channel simple reset/power-on reset supervisor. It monitors one supply voltage and asserts an active-low reset signal when the monitored voltage falls below a threshold, holding the reset for a typical 50µs timeout after the supply recovers. The output is open-drain, making it suitable for wired-OR connections with other reset sources. The threshold is adjustable or selectable via external resistors, so one part number can cover multiple rail voltages across a BOM.
Temperature range and package fit
Rated for -40°C to 125°C ambient, this part is qualified for industrial motor drives, outdoor telecom, and under-hood automotive environments where the PCB sees wide thermal swings.
Lifecycle and sourcing posture
The MAX6458UKD0B+T is listed as Active on the manufacturer's status, with ROHS3 compliance confirmed. There is no end-of-life notice or last-time-buy window, so it remains a stable choice for production builds and new designs.