What this supervisor does on your board
The Maxim Integrated MAX6824WUK is a single-channel voltage supervisor that monitors a 1.67V rail and asserts a reset output when the supply drops below that threshold. It holds the reset active for a minimum of 140ms after the supply returns above threshold, giving the system time to stabilize. The push-pull output can be configured for either active-high or active-low reset polarity, which simplifies interfacing to both MCU reset pins and enable inputs on downstream regulators. The -40°C to 125°C operating range makes it suitable for industrial and automotive environments where the board sees wide thermal swings — engine bay, outdoor telecom cabinets, or factory-floor motor drives.
1.67V threshold — why it matters for 1.8V systems
The 1.67V threshold monitors a nominal 1.8V supply rail.
SOT-23-5 package — rework and layout notes
Housed in a SOT-23-5, this is a small, surface-mount package with five leads.
Lifecycle and sourcing
There is no end-of-life notification or last-time-buy window to track. The part carries a RoHS non-compliant classification, which means it contains lead — verify your assembly's exemption status under RoHS if you are shipping into regulated markets.