ICL7665AEPA

Supervisors Overview

The ICL7665AEPA is a microprocessor voltage monitor featuring dual overvoltage and undervoltage detection capabilities. It operates within a supply voltage range of 1.6V to 16V, monitoring input voltages from 1.3V upwards. The device draws a typical operating current of only 3µA. Trip points are externally programmable via resistors for any voltage greater than 1.3V. The 'A' suffix indicates improved threshold accuracy of 2% for the VSET1 setting. It utilizes a monolithic low-power CMOS design with on-board hysteresis and outputs in an 8-PDIP package.

Supervisors Feature Summary

• Dual independent voltage detectors for simultaneous overvoltage and undervoltage warning
• Externally programmable trip points using external resistors
• Low power consumption with typical operating current of 3µA
• On-board hysteresis to prevent output oscillation

Supervisors Applications

• Microprocessor voltage monitoring
• Low-battery detection systems
• Power-fail and brownout detection circuits
• Battery backup switching applications

Supervisors Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout compatibility and electrical tolerances. Ensure the selected variant matches the required threshold accuracy and package type for the target application. Cross-reference datasheet revisions to confirm RoHS compliance status and manufacturing availability before finalizing procurement plans.

Supervisors Selection Notes

Select this component when precise, adjustable voltage thresholds are required for system supervision. The external resistor programming allows customization for various supply rails above 1.3V. Consider the 2% accuracy of the 'A' version for critical monitoring tasks. Evaluate the low quiescent current benefit for battery-operated designs requiring minimal standby drain.

Supervisors Part Context

The ICL7665 series belongs to Maxim Integrated's family of microprocessor supervisory circuits designed for reliable system protection. This specific part provides dual-channel monitoring without manual reset or watchdog timer functions. It serves as a foundational component for ensuring stable operation in digital systems by detecting abnormal power conditions early.

Supervisors Replacement Considerations

ICL7665ACSA+ is listed as a parameter equivalent alternative.