MAX690RESA+T

Supervisors Overview

The MAX690RESA+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in an SOIC-8 surface-mount package. It monitors a single input voltage with a threshold of 4.65 V and an overvoltage threshold of 4.75 V. The device features an active low push-pull output, a 50 ms reset delay, and includes a watchdog timer and battery backup switching capabilities. It operates within a supply voltage range up to 5.5 V, consumes 10 mA of quiescent current, and functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates brownout detection, power-fail warning, and watchdog timer functionality into a single component.
• Provides automatic battery-backup switching for low-power logic systems.
• Features a manual reset-free design with active low push-pull output.

Supervisors Applications

• Microprocessor system supervision
• CMOS RAM monitoring
• Low-power logic protection

Supervisors Procurement Notes

Verify availability status as distribution channels may indicate limited stock or discontinuation. Confirm RoHS compliance details through official documentation. Ensure the SOIC-8 package matches PCB footprint requirements. Validate operating temperature range suitability for the target environment. Cross-reference datasheet revisions to ensure functional consistency.

Supervisors Selection Notes

Select this part when a fixed 4.65 V threshold is required for system supervision. Consider the 50 ms reset delay and 10 mA current consumption against system power budgets. Verify that the SOIC-8 package fits the assembly constraints. Evaluate if the integrated watchdog and battery backup features meet application needs without external components.

Supervisors Part Context

This component belongs to the MAX690R series of microprocessor supervisory circuits designed to reduce system complexity. It replaces discrete components by combining voltage monitoring, reset generation, and watchdog functions. The series targets applications requiring reliable power management for microprocessors and memory devices.

Supervisors Replacement Considerations

Check for MAX690SESA+T (70 ms delay) or MAX690TESA+T (50 ms delay, different series suffix) if timing variations are acceptable. Verify pin compatibility and threshold voltage alignment before substitution.

Supervisors FAQ

Does the MAX690RESA+T support manual reset?

No, the device does not include a manual reset input.

What is the reset delay time for this component?

The reset delay time is 50 ms.