ISL88021IU8HEZ

Supervisors Overview

The ISL88021IU8HEZ is a triple voltage monitor supervisor manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 2 V to 5.5 V and features three independent monitoring channels with adjustable thresholds. The device supports manual reset functionality and includes an adjustable power-on reset timeout. It is housed in an 8-lead MSOP package, suitable for surface mount installation. The component operates reliably across a temperature range of -40°C to +85°C with a typical operating supply current of 15 uA.

Supervisors Feature Summary

• Triple channel voltage supervision with adjustable threshold detection capabilities
• Manual reset input for controlled system recovery sequences
• Adjustable power-on reset timeout duration configuration
• Low quiescent current operation for energy-efficient monitoring

Supervisors Applications

• Multi-rail power supply monitoring in embedded systems
• Voltage supervision for microcontroller power rails
• System integrity monitoring in industrial control units

Supervisors Procurement Notes

Verify the exact suffix HEZ for lead-free RoHS compliance and tape/reel packaging specifications. Confirm the manufacturer designation as Renesas or Intersil on the marking. Ensure the MSOP-8 package variant matches your PCB footprint requirements. Check for moisture sensitivity level ratings if storage conditions are critical. Validate the specific threshold adjustment resistor values against your design needs.

Supervisors Selection Notes

Select this component when triple voltage monitoring is required with adjustable thresholds rather than fixed values. Consider the low 15 uA supply current for battery-sensitive applications. Verify that the 2 V to 5.5 V operating range covers all monitored rails. Ensure the manual reset feature aligns with your system's recovery logic. Compare the MSOP-8 package size against available board space constraints.

Supervisors Part Context

This part belongs to the ISL880xx series of voltage supervisors from Renesas/Intersil. It shares functional similarities with other multi-channel monitors but offers specific triple-channel capability. The series typically targets cost-sensitive consumer and industrial electronics requiring reliable power management supervision without complex digital interfaces.

Supervisors Replacement Considerations

ISL88031IU8HEZ provides five monitoring channels instead of three. ISL88021IU8HEZ-TK is the same device in tape-and-reel packaging. Verify pin compatibility and threshold adjustability when substituting.