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Analog Devices MAX791ESE — Power Management (PMIC / Gate Driver)

MAX791ESE Power Supply Monitor, Active Low Reset

MPNMAX791ESE
End of Life

Analog Devices MAX791ESE Power Supply Monitor, active low reset, open drain output, 4.65V threshold, 140ms timeout, 16-SOIC surface mount, industrial temperature range.

$6.4Ref. price · indicative, final on quote
Analog Devices MAX791ESE datasheet (PDF)
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX791ESE specifications
ParameterValue
TypePower Supply Monitor
MountingSurface Mount
Voltage - threshold4.65V
Number of voltages monitored1
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageBulk
Reset timeout140ms Minimum
Case16-SOIC (0.154\", 3.90mm Width)

Product details

What the 4.65V threshold means for a 5V rail

The MAX791ESE: You need an external pull-up resistor to Vcc or the processor's reset rail.

16-SOIC package and rework profile

Pin 1 is clearly marked with a dot on the top moulding, and the package outline is symmetric enough that the orientation is unambiguous under a loupe. No hidden pads, no centre pad — the board layout is straightforward.

Active production, legacy RoHS status

Note the RoHS status is non-compliant — this part carries a tin-lead (SnPb) finish, not pure tin. That is typical for legacy industrial parts and means it is exempt from RoHS restrictions for certain applications, but a RoHS-compliant BOM will need an alternative or an exemption letter.

Frequently asked questions

What is the reset threshold and timeout on MAX791ESE?

The voltage threshold is 4.65V for a nominal 5V rail, and the reset timeout after the rail recovers is a minimum of 140ms.

What package is MAX791ESE in and is it reworkable?

It comes in a 16-SOIC (0.154-inch body, 3.90mm width) surface-mount package. The 1.27mm pitch gull-wing leads are easy to hand-solder or hot-air rework with standard equipment.