ICL7665SACBA

Supervisors Overview

The ICL7665SACBA is a CMOS micropower over/under voltage detector designed for microprocessor voltage monitoring. It operates within a supply voltage range of 1.8 V to 16 V and draws a typical operating current of 3 µA. The device features two independently programmable voltage detectors with externally settable trip points via external resistors, allowing detection of voltages from 1.3 V upwards. It provides open-drain outputs and includes on-board hysteresis to prevent false triggering during slow-rising power supplies.

Supervisors Feature Summary

• Dual-channel voltage detection capability with individually programmable trip points using external resistors
• Micropower CMOS design ensuring low standby current consumption suitable for battery-operated systems
• Integrated hysteresis mechanism to ensure stable output states during voltage transitions

Supervisors Applications

• Microprocessor voltage monitoring and fault detection
• Low-battery detection in portable instrumentation
• Power-fail and brownout detection circuits
• Battery backup switching systems

Supervisors Procurement Notes

Verify the specific suffix 'SACBA' against manufacturer documentation to confirm package type (PDIP-8) and temperature grade. Confirm RoHS compliance status as legacy Intersil/Renesas products may have varying environmental declarations. Check for obsolescence or limited availability notices, as this component series has been subject to lifecycle changes by Renesas Electronics.

Supervisors Selection Notes

Select this component when dual independent voltage thresholds are required without internal fixed references. Ensure external resistor values can achieve the desired trip points above 1.3 V. Verify that the open-drain output configuration aligns with the downstream logic interface requirements. Consider the PDIP-8 package constraints if PCB space allows through-hole mounting.

Supervisors Part Context

The ICL7665 series originated from Harris Semiconductor and was later acquired by Intersil, which became part of Renesas Electronics. This family represents a standard solution for supervisory circuits requiring adjustable thresholds. The 'SACBA' designation typically indicates a plastic DIP package variant within the broader ICL7665 product line.

Supervisors Replacement Considerations

Direct substitutes include ICL7665SAIBA and ICL7665SCBAZ, provided pin compatibility and threshold accuracy meet system specifications. Verify that alternative packages maintain the same electrical characteristics and thermal performance.