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Analog Devices MAX6423US22+T — DC-DC Power Modules
Analog Devices

MAX6423US22+T Simple Reset/Power-On Reset, 2.188V Threshold

MPNMAX6423US22+T
End of Life

Analog Devices MAX6423US22+T, Simple Reset/Power-On Reset, Active Low, Open Drain, 1 Channel, 2.188V Threshold, Adjustable Timeout, SOT-143-4, -40°C to 125°C.

$3.93Ref. price · indicative, final on quote
MAX6423US22+T datasheet
PackagingTO-253-4, TO-253AA
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

MAX6423US22+T Technical Specifications
ParameterValue
TypeSimple Reset/Power-On Reset
Mounting typeSurface Mount
Voltage - threshold2.188V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeoutAdjustable/Selectable
CaseTO-253-4, TO-253AA

Product details

What this supervisor does on your rail

The open-drain output lets you wire-OR the reset signal with other supervisors or pull it to a different logic rail, which is common in multi-voltage designs where the core and I/O supplies sequence independently. Rated for -40°C to 125°C ambient, this part suits industrial motor drives, automotive under-hood modules, and outdoor telecom gear where the board sees wide thermal swings.

Threshold and timeout — setting the reset window

The adjustable/selectable reset timeout means you are not locked into a fixed delay. A small capacitor on the CT pin sets the period — useful when the downstream device needs a longer hold time to complete its internal power-up sequence or when a fast release is needed to meet a timing budget.

Package and footprint

Housed in a SOT-143-4 package (also TO-253-4), this is a four-lead surface-mount device. The SOT-143 footprint is compact and shares the land pattern with many small reset ICs.

Lifecycle and compliance

ROHS3 compliant, so it clears the REACH and RoHS requirements for EU-market equipment without an exemption certificate.

Frequently asked questions

What is the reset timeout for MAX6423US22+T?

The reset timeout is adjustable/selectable via an external capacitor. There is no fixed internal timeout — the designer sets the delay to suit the downstream load.

What package does MAX6423US22+T come in?

It is supplied in a SOT-143-4 surface-mount package, also described as TO-253-4 / TO-253AA. The tape-and-reel option is standard for volume assembly.

Is MAX6423US22+T RoHS compliant?

Yes, it is rated ROHS3 compliant, covering the full RoHS restricted-substance list without exemptions.

What are the alternatives to MAX6423US22+T?

Within the same MAX6423 family, variants with different threshold voltages (e.g., 1.575V, 2.925V) are pin-compatible. For a fixed-timeout supervisor in the same SOT-143 package, the MAX6316 series is a functional alternative, though the threshold and timeout must be matched to the rail.