MAX690RESA+

Supervisors Overview

The MAX690RESA+T is a microprocessor supervisory circuit designed for 3.0V and 3.3V systems, manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of up to 5.5V and features an active low, push-pull output. Key electrical parameters include a threshold voltage of 4.65V, an overvoltage threshold of 4.75V, and a reset delay time of 50ms. The device incorporates a watchdog timer and battery backup switch functionality without manual reset capability. It is housed in an SOIC-8 surface-mount package and supports operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer and battery backup switch for comprehensive system monitoring
• Provides active low, push-pull reset output with configurable delay timing
• Detects power failures and monitors input voltage against specific thresholds

Supervisors Applications

• Microprocessor supervisory circuits for 3.0V and 3.3V systems
• Voltage supervision in embedded electronic devices
• Power management ICs requiring watchdog and backup functions

Supervisors Procurement Notes

Verify the exact suffix configuration when sourcing, as the provided data references the MAX690RESA+T variant. Confirm availability status directly with authorized distributors, as current listings indicate limited or restricted supply conditions for this specific part number. Ensure that the SOIC-8 package type matches your PCB layout requirements before finalizing procurement decisions.

Supervisors Selection Notes

Select this component for applications requiring dedicated supervision of 3.0V or 3.3V logic levels. The integrated watchdog and battery backup features reduce external component count. Consider the 50ms reset delay and 4.65V threshold against system startup requirements. Verify thermal performance within the specified operating temperature range for reliable long-term operation in industrial environments.

Supervisors Part Context

This part belongs to the MAX690R series of microprocessor supervisory circuits from Maxim Integrated. It shares functional similarities with other variants like the MAX690AESA+, differing primarily in packaging and potentially supply chain specifics. The series is categorized under PMIC - Power Management ICs, focusing on voltage supervision and system reliability enhancement through automated reset and monitoring mechanisms.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.