ISL88708IB831Z

Supervisors Overview

The ISL88708IB831Z is a microprocessor supervisor integrated circuit manufactured by Renesas Electronics Corporation, formerly Intersil. It monitors a single voltage channel with an adjustable power-on reset threshold of 3.09V. The device features a watchdog timer, power-fail comparator, manual reset input, and adjustable power-on reset functionality. It offers open-drain and push-pull outputs with active-high or active-low reset signals. A minimum reset timeout of 140ms ensures stable system initialization. The component operates within a temperature range of -40°C to 85°C and is housed in an 8-SOIC surface-mount package.

Supervisors Feature Summary

• Integrates watchdog timer and power-fail comparator for comprehensive system monitoring
• Provides adjustable power-on reset threshold for flexible voltage supervision
• Supports both open-drain and push-pull output configurations
• Includes manual reset input capability for external control

Supervisors Applications

• Microprocessor system power supply monitoring
• Battery function supervision in embedded systems
• Industrial control unit reset management
• General-purpose voltage supervision in electronic circuits

Supervisors Procurement Notes

Verify the specific suffix IB831Z to confirm the 3.09V threshold voltage setting, as other suffixes indicate different thresholds. Confirm package type matches design requirements, typically 8-SOIC. Check current status as some variants may be discontinued; consult manufacturer documentation for availability and lifecycle status before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a single-channel supervisor with adjustable threshold is required. Ensure the 3.09V reset point aligns with the monitored rail voltage. Verify that the 140ms minimum timeout meets system startup timing constraints. Consider the operating temperature range of -40°C to 85°C for environmental compatibility. Confirm output drive capability suits the connected logic inputs.

Supervisors Part Context

The ISL88708 belongs to a family of microprocessor supervisors designed for high accuracy and low power consumption. It shares functional similarities with models like ISL88705, ISL88706, ISL88707, ISL88716, and ISL88813. These devices are intended for monitoring power-supply and battery functions in microprocessor systems. The ISL88708 specifically distinguishes itself through its configurable threshold options and integrated watchdog features.

Supervisors FAQ

What is the reset threshold voltage for the ISL88708IB831Z?

The ISL88708IB831Z has an adjustable power-on reset threshold set at 3.09V.

Does the ISL88708IB831Z include a watchdog timer?

Yes, the device integrates a watchdog timer along with a power-fail comparator and manual reset input.

What is the minimum reset timeout duration?

The minimum reset timeout is 140ms, ensuring sufficient time for system stabilization during power-up.