Skip to main content
Analog Devices MAX6389XS46D3 — Discrete Semiconductors
Analog Devices

MAX6389XS46D3 Multi-Voltage Supervisor, Active Low, SC-70-4

MPNMAX6389XS46D3
End of Life

Analog Devices MAX6389XS46D3, Multi-Voltage Supervisor, 2-channel, Active Low, Open Drain, SC-70-4, 4.63V fixed + adjustable threshold, 140ms min reset timeout, -40°C to 125°C.

$3.2Ref. price · indicative, final on quote
MAX6389XS46D3 datasheet
PackagingSC-82A, SOT-343
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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MAX6389XS46D3 Technical Specifications
ParameterValue
TypeMulti-Voltage Supervisor
Mounting typeSurface Mount
Voltage - threshold4.63V, Adj
Number of voltages monitored2
Operating temperature-40°C ~ 125°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageBulk
Reset timeout140ms Minimum
CaseSC-82A, SOT-343

Product details

Package and temperature grade

Housed in a 4-lead SC-70 (SOT-343) package, the MAX6389XS46D3 is a surface-mount part that fits tight board layouts. The operating temperature range of -40°C to 125°C covers industrial and automotive under-hood environments, making it suitable for motor drives, base stations, and engine control modules where the supervisor must keep working through thermal cycling.

Active production, no end-of-life concern

The MAX6389XS46D3 is listed as Active in production status. For BOM planning, this part can be specified into new designs without near-term obsolescence risk.

Frequently asked questions

What is the reset timeout for MAX6389XS46D3?

The reset timeout is a minimum of 140ms. After all monitored voltages rise above their thresholds, the reset output stays asserted for at least 140ms before releasing the system.

Can MAX6389XS46D3 monitor 3.3V and 5V?

It can monitor a 5V rail directly using the fixed 4.63V threshold. The second channel is adjustable via external resistors, so it can be set to monitor a 3.3V rail or any other voltage down to about 1.2V.

What is the closest pin-compatible alternative to MAX6389XS46D3?

Within the MAX6389 family, parts differ by the fixed threshold voltage and reset timeout. For a 4.63V fixed threshold with 140ms timeout, the MAX6389XS46D3 is the specific variant. A different fixed threshold (e.g., 3.08V) would require a different suffix in the MAX6389 series, but all share the same SC-70-4 footprint and pinout.