ISL88003IE23Z-T

Supervisors Overview

The ISL88003IE23Z-T is a low-power voltage supervisory circuit manufactured by Renesas Electronics Corporation. It monitors a single input voltage and provides a reset output when the monitored voltage falls below or exceeds specific thresholds. The device features an open-drain /RST output, operates within a supply voltage range of 1.8 V to 5.5 V, and includes a fixed 190 ms reset delay time. It is housed in a SC-70-3 package and is designed for applications requiring precise voltage monitoring with minimal power consumption.

Supervisors Feature Summary

• Monitors a single input voltage for under-voltage and over-voltage conditions
• Provides a push-pull or open-drain reset output signal based on threshold detection
• Operates with ultra-low quiescent current for battery-powered applications
• Includes a fixed internal reset delay timer to ensure stable system recovery

Supervisors Applications

• Portable electronic devices requiring low-power voltage supervision
• Battery-operated systems needing under-voltage lockout protection
• Industrial control circuits monitoring critical power rails
• Embedded systems ensuring safe startup and shutdown sequences

Supervisors Procurement Notes

Verify the exact suffix 'IE23Z-T' against official Renesas documentation to confirm the specific threshold voltage and package variant. Check for End-of-Life (EOL) status as previous ISL88003 variants have faced obsolescence notices. Confirm moisture sensitivity level and reflow soldering profiles if handling surface-mount components. Ensure compatibility with existing PCB footprint and design-in requirements before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a single-channel voltage monitor with low quiescent current is required. Compare threshold accuracy and reset delay times against alternative supervisory ICs. Consider the SC-70-3 package size constraints and operating temperature range (-40°C to +85°C). Verify that the open-drain output configuration matches the downstream logic interface requirements.

Supervisors Part Context

The ISL88003 series belongs to Renesas' portfolio of low-power voltage supervisors, originally developed under the Intersil brand. These devices are part of a broader family including ISL88001 and ISL88002, offering various threshold options and output configurations. The series is designed for compact, cost-sensitive applications where power efficiency and reliable voltage monitoring are critical.

Supervisors Replacement Considerations

Check for direct pin-to-pin replacements within the ISL88003 family with different suffixes indicating varied thresholds. Consult Renesas for updated equivalents if the specific IE23Z-T variant is discontinued. Evaluate generic voltage supervisors from other manufacturers only if electrical parameters and package dimensions match exactly.