Dual-rail supervisor in SOT-23-8 — what it monitors and how it resets
The Maxim Integrated MAX6392KA29-T is a multi-voltage supervisor that monitors two supply rails and asserts a reset signal when either falls below its threshold. One channel is fixed at 2.93V; the second is adjustable via an external resistor divider, which lets you set the trip point to any voltage above the internal reference. The reset output is active low and configurable as open-drain or push-pull — open-drain suits wired-OR sharing with other supervisors, push-pull drives CMOS inputs directly without a pull-up. Reset timeout is 140ms minimum in the fixed configuration, or adjustable with an external capacitor for longer hold-off periods. That 140ms window covers most processor power-on-reset requirements and brown-out recovery sequences without external timing components. The industrial temperature range (-40°C to 85°C) qualifies it for outdoor telecom cabinets, factory-floor PLCs, and motor-drive control boards where the ambient can swing. The SOT-23-8 footprint is compact enough for space-constrained multi-rail designs in sensors or remote I/O modules.
RoHS status — plan your BOM compliance early
This part is marked RoHS non-compliant.
Active production — no LTB pressure for new builds
The MAX6392KA29-T carries an active lifecycle status. For a BOM freeze or a new design-in, there is no imminent obsolescence risk to budget around.
Sourcing posture — quoted to order through independent distribution
The MAX6392KA29-T is sourced through independent distribution channels and quoted to order against an RFQ. For volume commitments or blanket-order coverage, the active lifecycle means the factory pipeline is open — lead time is established during the RFQ process, not assumed from a shelf count.