What this supervisor does and where it fits
The Maxim Integrated MAX6382XR16D3 is a simple reset/power-on reset (POR) supervisor IC that monitors a single supply rail and holds the reset output active high for a minimum of 140 ms after the voltage rises above the 1.58 V threshold. This part is designed for systems that require a clean, deterministic power-up sequence — think microcontrollers, FPGAs, or SoCs that need the core held in reset until the supply is stable. The push-pull, totem-pole output eliminates the need for an external pull-up resistor, saving a component and a board trace.
Temperature range and environment
Rated for -40°C to 125°C ambient, this supervisor suits industrial control cabinets, outdoor telecom gear, and under-hood automotive modules where the board sees wide thermal swings. The SC-70-3 package is small enough to tuck next to the monitored rail's decoupling caps, and the surface-mount footprint reflows cleanly with standard lead-free profiles — though note the part itself is RoHS non-compliant per its lead-bearing finish.
Sourcing and lifecycle
Because it is RoHS non-compliant, buyers working under RoHS-exempt categories (military, aerospace, some medical) or with legacy assembly lines that tolerate leaded solder will find it straightforward to source. For RoHS-mandated designs, look to the MAX6382XR16D3+ (the lead-free suffix variant) as a drop-in alternative — same threshold, same timing, same footprint.
Rework note on the SC-70-3
The SC-70-3 is a three-lead package. It reworks cleanly under hot air with a fine nozzle — the leads are visible enough to confirm solder reflow without X-ray.