2.5V threshold, dual-voltage window supervisor
The MAX6757UTZD0 is a dual-voltage window supervisor from Maxim Integrated's automotive-grade series, monitoring two supply rails with a 2.5 V threshold on the primary input. It asserts a reset output (Active Low, open-drain or push-pull) when the monitored voltage falls outside the window, holding the reset for a typical 20 µs timeout after the voltage returns within tolerance. The -40°C to +125°C operating range and AEC-Q100 qualification make it suitable for under-hood and chassis-domain electronics where the ambient temperature exceeds the commercial grade ceiling.
Package and temperature grade
Housed in a 6-pin SOT-23 package (supplier device package SOT-23-6), the part occupies a compact footprint suited for space-constrained ECU boards. The AEC-Q100 Grade 1 temperature range (-40°C to +125°C) covers the full automotive under-hood thermal profile — the supervisor continues to assert a valid reset state even when the engine bay hits 105°C on a summer grade.