Skip to main content
Log in
MAX6391KA23-T

MAX6391KA23-T Multi-Voltage Supervisor, 2.32V/Adj, SOT-23-8

MPNMAX6391KA23-T
End of Life

Maxim Integrated MAX6391KA23-T Multi-Voltage Supervisor, 2-channel, Active Low reset, Open Drain output, 2.32V/Adj thresholds, 140ms/Adjustable Minimum timeout, SOT-23-8, -40°C to 85°C.

$2.01Ref. price · indicative, final on quote
Analog Devices MAX6391KA23-T datasheet (PDF)
PackagingSOT-23-8
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX6391KA23-T specifications
ParameterValue
TypeMulti-Voltage Supervisor
MountingSurface Mount
Voltage - threshold2.32V, Adj
Number of voltages monitored2
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageBulk
Reset timeout140ms/Adjustable Minimum
CaseSOT-23-8

Product details

Dual-rail supervisor in a SOT-23-8

The open-drain, active-low reset output asserts when either monitored voltage falls below its threshold, and releases after the reset timeout period — factory-set at 140ms or user-programmed to a minimum value. Packaged in an SOT-23-8, this part is sized for space-constrained boards in industrial control, telecom infrastructure, and automotive body electronics where two-voltage sequencing or undervoltage lockout is required.

The RoHS status is listed as non-compliant; verify your assembly's exemption or lead-free policy for solder profile compatibility.

Frequently asked questions

Can MAX6391KA23-T monitor both 2.32V and an adjustable voltage?

Yes. One channel monitors a fixed 2.32V threshold; the second channel is adjustable via an external resistor divider, letting you set any threshold above the reference.

What are typical applications for MAX6391KA23-T?

Typical applications include dual-voltage system monitoring in industrial controllers, telecom line cards, and automotive body modules where two supply rails need undervoltage supervision with a single supervisor IC.

Is MAX6391KA23-T compatible with 3.3V logic?

The open-drain output can be pulled up to any voltage up to the absolute maximum rating of the output pin, making it compatible with 3.3V or 5V logic families. The 2.32V threshold is appropriate for monitoring a 3.3V rail with a typical undervoltage setpoint.