MAX699EWE+

Supervisors Overview

The MAX699EWE+ is a low-cost supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for power-on reset and watchdog timer functions. It operates within a supply voltage range of 2.0V to 5.5V with a fixed reset threshold of 4.65V. The device features an active-low open-drain or open-collector reset output and includes a programmable watchdog timer with a timeout period of 140ms minimum. It supports manual reset input and operates across an extended temperature range of -40°C to +85°C in an 8-MSOP package.

Supervisors Feature Summary

• Integrates power-on reset generator with watchdog timer functionality
• Features active-low open-drain/reset output compatible with various logic families
• Includes manual reset input for system control flexibility
• Operates reliably across extended industrial temperature ranges

Supervisors Applications

• Microprocessor system supervision
• Battery-powered equipment monitoring
• Portable instrumentation reset circuits
• Watchdog timer implementation in embedded systems

Supervisors Procurement Notes

Verify the specific suffix EWE+ corresponds to the 8-MSOP package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected distributor provides traceability data matching the Analog Devices/Maxim Integrated part number structure. Cross-reference datasheet revisions to confirm electrical characteristics remain consistent with design requirements.

Supervisors Selection Notes

Select this component when a combined power-on reset and watchdog solution is required in space-constrained designs. The fixed 4.65V threshold suits standard 5V and 3.3V systems requiring supervision above this level. Consider the MSOP package for surface-mount assembly constraints. Verify that the open-drain output capability aligns with the target system's pull-up resistor configuration and noise immunity needs.

Supervisors Part Context

The MAX699 series represents a family of simple, cost-effective supervisory circuits from Maxim Integrated, now part of Analog Devices. These devices are engineered for applications requiring reliable system reset management without complex programming. The MAX699 specifically combines reset generation with watchdog timing in a single compact package, serving as a foundational component for basic microcontroller protection schemes in consumer and industrial electronics.

Supervisors Replacement Considerations

Consult the official MAX698/MAX699 datasheet for direct pin-compatible alternatives within the same product family. Verify equivalent electrical specifications such as reset threshold voltage and watchdog timeout periods before substitution. Check for package compatibility between DIP and MSOP variants if form factor changes are permissible.