ICL7665SACPAZ

Supervisors Overview

The ICL7665SACPAZ is a CMOS micropower supervisory circuit manufactured by Renesas Electronics. It integrates two individually programmable voltage detectors within a single chip, designed for monitoring power supply integrity in battery-operated systems. The device operates within a supply voltage range of 1.8 V to 16 V and consumes typically 3 μA during operation. It features adjustable threshold voltages with a maximum reset threshold of 1.325 V and a minimum of 1.275 V. Packaged in an 8-pin PDIP format with a 2.54 mm pin pitch, it supports through-hole mounting and functions as a dual-channel power supply support circuit.

Supervisors Feature Summary

• Integrates two low-power, individually programmable voltage detectors on a single CMOS chip
• Provides active low output signals for over-voltage and under-voltage conditions
• Supports battery backup switching functionality for continuous system monitoring
• Operates with minimal current consumption suitable for portable instrumentation

Supervisors Applications

• Battery operated systems requiring power integrity monitoring
• Portable computers and handheld instrumentation
• Memory power back-up circuits
• Charging systems supervision

Supervisors Procurement Notes

Verify the specific package variant when ordering, as suffixes indicate material differences such as ceramic or plastic construction. Confirm RoHS compliance status, as some variants may not meet current environmental standards. Check manufacturer lifecycle notices for obsolescence risks associated with older CMOS technologies. Ensure the selected part matches the required operating temperature range for the intended application environment.

Supervisors Selection Notes

Select this component when designing systems that require dual independent voltage monitoring channels with low quiescent current. The adjustable threshold capability allows customization for specific rail requirements without external resistors. Consider the PDIP-8 package for prototyping or applications where surface mount space is not constrained. Verify that the open-drain or active-low output configuration aligns with the downstream logic interface requirements.

Supervisors Part Context

The ICL7665S series belongs to Renesas' portfolio of micropower supervisory circuits derived from Intersil technology. This family focuses on providing reliable power management for portable devices where energy efficiency is critical. The ICL7665SACPAZ specifically represents the plastic DIP variant, distinguishing it from ceramic or SOIC versions available in the same functional family.

Supervisors Replacement Considerations

Direct substitutes include other ICL7665S variants with different packages, such as ICL7665SAIBAZA-T for surface mount applications. Cross-reference with similar dual-channel voltage detectors if PDIP packaging is unavailable. Verify electrical compatibility regarding threshold ranges and supply voltage limits before substitution.