ISL88031IU8HFZ-TK

Supervisors Overview

The ISL88031IU8HFZ-TK is a quintuple voltage-monitoring supervisor from Renesas Electronics Corporation, designed for competitive reset threshold accuracy and low power consumption. It features five monitored inputs with manual reset functionality and lacks a watchdog timer. The device operates within a supply voltage range of 2 V to 5.5 V and supports over-voltage thresholds of 4.717 V, 3.008 V, 611 mV, and adjustable settings, alongside under-voltage thresholds of 4.551 V, 2.901 V, 589 mV, and adjustable options. It draws a typical operating supply current of 19 uA and functions across an extended temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Combines five independent voltage monitoring channels with manual reset capability in a compact surface-mount package.
• Provides high-accuracy reset thresholds with configurable over-voltage and under-voltage trip points for precise system supervision.
• Delivers ultra-low power consumption suitable for battery-operated or energy-efficient applications.

Supervisors Applications

• Multi-rail power supply monitoring in embedded systems
• Voltage supervision for portable electronic devices
• System integrity monitoring in industrial control units

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level (MSL) requirements for storage and handling. Check for alternative sources as standard packaging quantities may vary. Ensure the specific suffix matches required thermal and electrical specifications before procurement.

Supervisors Selection Notes

Select this component when multiple voltage rails require simultaneous supervision with minimal quiescent current. The manual reset feature suits designs where automatic recovery is not desired. Verify that the available threshold combinations cover all critical supply voltages in the target application without requiring external resistor networks.

Supervisors Part Context

The ISL88031 belongs to the ISL88031 series of supervisory circuits manufactured by Renesas Electronics Corporation. It is part of the broader PMIC category, specifically focusing on voltage monitoring solutions. The device integrates multiple monitoring functions into a single small-footprint IC, replacing discrete comparator-based designs.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The component is listed as End-of-Life (EOL). Designers should consult official Renesas resources for potential pin-compatible alternatives or updated series replacements.