MAX690CPA+

Supervisors Overview

The MAX690CPA+ is a microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for monitoring voltage levels in electronic systems. It operates within a supply voltage range of 4.75 V to 5.5 V and features a threshold voltage of 4.65 V with an overvoltage threshold of 4.75 V. The device provides a reset delay time of 50 ms and includes a watchdog timer and battery backup switch functionality. It has a single monitored input and delivers an active low, push-pull output. The component consumes 350 uA of operating supply current and supports power failure detection. It is housed in an 8-PDIP package and functions within a temperature range of 0°C to +70°C.

Supervisors Feature Summary

• Integrates a watchdog timer and battery backup switch for comprehensive system supervision
• Features power failure detection capability to monitor supply integrity
• Provides active low push-pull output for direct interface with logic circuits

Supervisors Applications

• Microprocessor system voltage supervision
• Battery backup switching applications
• Watchdog timer implementation in embedded systems

Supervisors Procurement Notes

Verify the specific suffix and package type against the required design specifications before procurement. Confirm that the operating temperature range meets the environmental requirements of the target application. Check for any obsolescence notices or recommended replacement parts from the manufacturer. Ensure compatibility with the system's voltage thresholds and reset timing requirements.

Supervisors Selection Notes

Select this component when a dedicated supervisory circuit with integrated watchdog and backup switching is required for 5V microprocessor systems. Consider the 8-PDIP package for through-hole mounting needs. Evaluate the 50 ms reset delay and 350 uA current consumption against system power and timing constraints. Verify that the fixed threshold voltages align with the monitored rail specifications.

Supervisors Part Context

The MAX690 series belongs to Analog Devices' portfolio of microprocessor supervisory circuits. This specific part number represents the commercial temperature grade version in a PDIP-8 package. It is part of a family offering various packages and temperature ranges, such as the MAX690TCPA+ and MAX690AESA+, which share similar electrical characteristics but differ in thermal performance and physical form factor.

Supervisors Replacement Considerations

MAX690TCPA+

Supervisors FAQ

Does the MAX690CPA+ include a manual reset input?

No, the MAX690CPA+ does not feature a manual reset input; it relies on automatic voltage monitoring and watchdog triggering.

What is the maximum supply voltage for the MAX690CPA+?

The maximum supply voltage for the MAX690CPA+ is 5.5 V.