ICL7665EPA

Supervisors Overview

The ICL7665EPA is a power supervisor circuit manufactured by Analog Devices Inc./Maxim Integrated, designed to monitor voltage levels for microprocessor systems. It features dual overvoltage and undervoltage detection capabilities with adjustable or selectable threshold voltages. The device operates within a temperature range of -40°C to +85°C and draws a typical operating current of only 3μA. It provides active high reset outputs and supports open drain or open collector configurations. Packaged in an 8-pin DIP format, it ensures reliable system supervision under varying power conditions.

Supervisors Feature Summary

• Dual monitoring channels for simultaneous overvoltage and undervoltage detection
• Adjustable or selectable threshold voltage settings for flexible application integration
• Ultra-low power consumption with typical operating current of 3μA
• Active high reset output with open drain/open collector compatibility

Supervisors Applications

• Microprocessor power supply supervision
• Battery-powered system voltage monitoring
• Industrial control unit power integrity checks
• Embedded system brown-out protection

Supervisors Procurement Notes

Verify the specific suffix 'EPA' indicates the through-hole PDIP-8 package variant when sourcing replacements. Confirm that the adjustable threshold version matches your circuit design requirements, as fixed-threshold variants exist within the same family. Ensure compatibility with your system's reset logic polarity, as this model provides active high outputs. Cross-reference manufacturer documentation for any pinout revisions between legacy Maxim and current Analog Devices production runs.

Supervisors Selection Notes

Select this component when dual-channel voltage supervision is required with minimal quiescent current draw. The adjustable threshold feature allows customization for specific rail voltages without external resistors. Consider the through-hole packaging if PCB assembly methods require DIP formats. Verify that the active high reset signal aligns with the target microcontroller's input requirements before finalizing the bill of materials.

Supervisors Part Context

The ICL7665 series belongs to Maxim Integrated's line of supervisory circuits, now part of Analog Devices. This specific EPA variant represents the traditional through-hole packaging option, contrasting with surface-mount alternatives like the ESA+T. The series is engineered for cost-sensitive applications requiring reliable power management without complex external components.

Supervisors Replacement Considerations

ICL7665ESA+T serves as the surface-mount equivalent with identical electrical characteristics but in SOIC-8 packaging. Direct pin-to-pin replacement is possible if board space permits SMD technology. Verify package dimensions and thermal dissipation requirements when transitioning from DIP to SOIC formats.