MAX706EUA+

Supervisors Overview

The MAX706EUA+ is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for monitoring power supply voltages in electronic systems. It operates within a supply voltage range of 1V to 5.5V and features a threshold voltage of 3.08V with an accuracy of 2.5%. The device includes a manual reset input, a watchdog timer, and power-fail detection capabilities. It provides an active low, push-pull output with a reset delay time of 200ms. The component is housed in an 8-pin UMAX package, suitable for surface mount installation, and functions reliably across a temperature range of -40°C to +85°C while consuming 135µA of operating current.

Supervisors Feature Summary

• Integrates a watchdog timer for automated system recovery from software faults
• Includes manual reset functionality allowing external user intervention
• Detects power failures to provide warnings before voltage drops below safe levels

Supervisors Applications

• Desktop computer systems
• Portable computers and laptops
• Test and measurement instruments
• Battery-powered portable devices
• Multi-output power supplies

Supervisors Procurement Notes

Verify the specific suffix 'EUA+' corresponds to the UMAX-8 package and lead-free status when sourcing. Confirm RoHS compliance documentation is available from the distributor. Check for obsolescence notices as Maxim Integrated products may have lifecycle changes. Ensure the supplier provides valid traceability for Analog Devices components.

Supervisors Selection Notes

Select this component when a 3.08V threshold is required for microprocessor supervision. Consider the UMAX-8 package for compact surface-mount designs. Evaluate the 135µA quiescent current against battery life requirements. Verify that the integrated watchdog and manual reset features meet the system's safety and control logic needs without requiring additional discrete components.

Supervisors Part Context

The MAX706 series belongs to the MicroMonitor family of voltage supervisors. These circuits are engineered to monitor single power rails and generate reset signals for digital logic. The MAX706EUA+ variant specifically utilizes the UMAX package, offering a small footprint compared to larger DIP options while maintaining similar electrical characteristics to other pin-compatible variants in the series.

Supervisors Replacement Considerations

Direct replacements include DS1706EUA+ and MAX706TEUA+. Verify pin compatibility and threshold voltage matching before substitution. Cross-reference package dimensions to ensure mechanical fit within the existing PCB layout.