MAX6713MEXS

Supervisors Overview

The MAX6713MEXS is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (formerly Maxim Integrated). It monitors power supply voltages in digital systems, offering precision monitoring for 2.5V, 3.0V, 3.3V, and 5.0V rails. The device features an open-drain reset output, a debounced manual reset input, and a minimum power-on reset pulse width of 140ms. It operates with a supply current of 12µA and guarantees valid reset down to VCC = +1V. Packaged in a compact 4-pin SC-70 surface-mount case, it eliminates the need for external components.

Supervisors Feature Summary

• Provides precise voltage supervision for standard digital logic power rails without requiring external adjustments or components.
• Features an open-drain reset output stage that allows connection of pull-up resistors to voltages higher than the supply rail.
• Includes a debounced manual reset input to allow system initialization control independent of power supply status.

Supervisors Applications

• Microprocessor and digital system power supply monitoring
• Portable equipment requiring low standby current
• Battery-powered devices needing reliable brown-out protection

Supervisors Procurement Notes

Verify the specific threshold voltage variant required, as the MAX6713 series offers fixed options for 2.5V, 3.0V, 3.3V, and 5.0V supplies. Confirm package availability and lead times through authorized Analog Devices distributors, noting that legacy Maxim parts may have limited stock. Ensure the design accounts for the open-drain output requirement for appropriate pull-up resistor selection.

Supervisors Selection Notes

Select the MAX6713MEXS when an open-drain reset output is preferred over push-pull configurations found in the MAX6711/MAX6712 variants. This part is suitable for systems where the reset line must be pulled up to a voltage different from the monitored supply. Consider the 12µA supply current for battery life optimization and the 140ms minimum reset pulse width for adequate power-up sequencing.

Supervisors Part Context

The MAX6713 belongs to the MAX6711/MAX6712/MAX6713 family of microprocessor reset circuits. While the MAX6711 and MAX6712 feature push-pull outputs, the MAX6713 specifically provides an open-drain output. All three share similar functionality regarding manual reset inputs, transient immunity, and low supply current, differing primarily in output drive capability and polarity.

Supervisors Replacement Considerations

MAX6711MEXS+T: Push-pull active-low output; requires level shifting if high-side pull-up needed. MAX6712MEXS+T: Push-pull active-high output; incompatible logic polarity. MAX6713MEXS+: RoHS-compliant version of the same electrical specification.