ISL88705IP846Z

Supervisors Overview

The ISL88705IP846Z is a microprocessor supervisor designed for portable and battery-powered equipment. It monitors power-supply and battery functions in microprocessor systems to enhance reliability. The device features a watchdog timer with a 1.6s time-out, manual reset input, and adjustable power-on reset. It offers high reset threshold accuracy of ±1.8% and ultra-low supply current of 10µA maximum at 3V. The reset signal remains valid down to VDD = 1V. It is available in an 8-pin SOIC package.

Supervisors Feature Summary

• Monitors power-supply and battery functions in microprocessor systems
• Includes watchdog timer capability with 1.6s time-out
• Provides manual reset input and adjustable power-on reset
• Features accurate ±1.8% voltage threshold immunity to transients

Supervisors Applications

• Portable/Battery Powered Equipment
• Notebook/Desktop Computer Systems
• Designs Using DSPs, Microcontrollers or Microprocessors
• Controllers and Intelligent Instruments
• Communications Systems and Industrial Equipment

Supervisors Procurement Notes

Verify the specific suffix IP846Z against official Renesas/Intersil documentation to confirm pinout, temperature range, and packaging details. Ensure the component matches the required operating voltage and reset threshold specifications for your design. Cross-reference the manufacturer part number to avoid confusion with similar variants in the ISL8870x family.

Supervisors Selection Notes

Select this component when precise monitoring of +3.0V, +3.3V, or +5.0V supplies is required. It is suitable for designs needing low power consumption and robust reset generation. Consider the fixed-voltage options if external adjustment is not needed. Verify compatibility with the target microprocessor's reset requirements and voltage levels.

Supervisors Part Context

The ISL88705 is part of a family of microprocessor supervisors including the ISL88706, ISL88707, ISL88708, ISL88716, and ISL88813. These devices are designed to lower system cost and reduce board space while increasing reliability. They are manufactured using advanced CMOS processes for low power operation.

Supervisors Replacement Considerations

Check for direct substitutes within the ISL8870x family such as ISL88706, ISL88707, or ISL88708. Verify that alternative parts match the required reset threshold, package type, and operating temperature range before substitution.