ICL7665SIBA

Supervisors Overview

The ICL7665SIBA is a CMOS micropower over/under voltage detector manufactured by Renesas (formerly Intersil/Harris). It integrates two individually programmable voltage detectors on a single chip, drawing a typical operating current of 3µA. The device operates from supply voltages between 1.6V and 16V, monitoring inputs from 1.3V upwards. It features an open-drain output type and is housed in an SOIC-8 surface-mount package. The component supports battery backup switching and lacks manual reset or watchdog timer functions.

Supervisors Feature Summary

• Dual independently programmable voltage detectors for overvoltage and undervoltage warning
• Ultra-low power consumption suitable for battery-operated systems
• Externally adjustable trip points via external resistors
• Open-drain output configuration for flexible interfacing

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 'IBA' against official Renesas or Intersil documentation to confirm pinout and electrical tolerances, as suffixes often denote package variations or temperature ranges. Confirm availability status with authorized distributors, as this component may be subject to limited supply or end-of-life restrictions. Ensure compatibility with existing PCB footprints for SOIC-8 packages during procurement planning.

Supervisors Selection Notes

Select this component when dual-channel voltage supervision is required with minimal quiescent current. The externally programmable thresholds allow customization for specific rail voltages above 1.3V. Consider the open-drain output requirement for pull-up resistor implementation. Verify that the 1.6V minimum supply voltage aligns with the system's lowest operating condition before finalizing the design.

Supervisors Part Context

The ICL7665 series belongs to the family of CMOS micropower supervisory circuits originally developed by Harris Corporation and later acquired by Intersil, now part of Renesas Electronics. These devices are designed to replace discrete comparator solutions, offering monolithic integration for cost-sensitive and space-constrained applications requiring reliable power management supervision.

Supervisors Replacement Considerations

The ICL7665SAIBAZA-T is listed as a related variant within the same product family. Verify functional equivalence regarding threshold accuracy and package dimensions before substitution.