ISL88002IE31Z-T

Supervisors Overview

The ISL88002IE31Z-T is a low-power voltage supervisory circuit manufactured by Renesas Electronics. It monitors a single input with an open-drain reset output and operates within a supply voltage range of 1.8 V to 5.5 V. The device features a threshold voltage of 3.09 V, with specific undervoltage and overvoltage thresholds at 3.038 V and 3.112 V respectively. It includes a fixed reset delay time of 190 ms and maintains an accuracy of 1.2%. The component draws a typical operating supply current of 350 nA and functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides precise voltage supervision for single-input applications with open-drain reset signaling.
• Ensures system reliability through accurate threshold detection and defined reset timing delays.
• Supports low-power operation with minimal quiescent current consumption suitable for battery-sensitive designs.

Supervisors Applications

• Low-power voltage supervision in portable electronic devices
• Monitoring critical power rails in embedded systems
• Ensuring stable operation in industrial control circuits

Supervisors Procurement Notes

Verify the exact suffix designation during procurement, as variations such as IH or IE may indicate different package types or testing conditions. Confirm that the specific part number matches the required threshold voltage and output configuration for your design. Check manufacturer lifecycle status, as this component may be subject to obsolescence notices. Ensure compatibility with your board's thermal and electrical requirements before finalizing orders.

Supervisors Selection Notes

Select this component when a single-channel voltage monitor with open-drain output is required. Compare threshold voltages against other variants in the ISL88002 family to ensure proper trip points for your specific rail. Consider the SOT-23 package size if space constraints are critical. Evaluate the 190 ms reset delay to confirm it meets your system startup timing requirements without causing unnecessary boot delays.

Supervisors Part Context

The ISL88002 series belongs to Renesas' portfolio of low-power supervisory circuits designed for monitoring voltage levels in various electronic systems. This specific model, ISL88002IE31Z-T, is part of the broader ISL8800x family, which offers multiple threshold options and output configurations. It complements other power management components by providing essential protection against under-voltage and over-voltage conditions.

Supervisors Replacement Considerations

Direct substitutes include other ISL88002 variants with matching 3.09 V thresholds and open-drain outputs, such as ISL88002IH31Z-T. Verify package compatibility and pinout alignment when considering alternative manufacturers. Cross-reference datasheets to ensure equivalent reset delay times and accuracy specifications meet your design criteria.