ISL88708IB826Z-TK

Supervisors Overview

The ISL88708IB826Z-TK is a single-channel power supply management integrated circuit manufactured by Renesas Electronics Corporation. It functions as a microprocessor supervisor featuring a watchdog timer, power-fail comparator, manual reset input, and adjustable power-on reset. The device operates within a voltage range of 2V to 5.5V with a typical threshold of 2.63V. It provides a minimum reset timeout of 140ms and supports both open-drain and push-pull outputs. The component is housed in an 8-SOIC surface-mount package and is rated for an operating temperature range of -40°C to 85°C.

Supervisors Feature Summary

• Integrates a watchdog timer, power-fail comparator, and manual reset functionality for comprehensive system supervision.
• Offers configurable output drivers supporting both open-drain and push-poll configurations for flexible interface compatibility.
• Provides adjustable power-on reset timing with a specified minimum timeout duration to ensure stable system initialization.

Supervisors Applications

• Industrial control systems requiring robust power monitoring
• Embedded systems utilizing microprocessors or microcontrollers
• Automotive electronics demanding wide temperature operation

Supervisors Procurement Notes

Verify the specific suffix 'TK' against official Renesas documentation to confirm tape-and-reel packaging specifications. Confirm current availability status as the base model may be discontinued. Ensure the 2.63V threshold variant matches the design requirements. Cross-reference the 8-SOIC package dimensions with PCB layout guidelines. Validate RoHS compliance status for the specific manufacturing lot.

Supervisors Selection Notes

Select this component when a single-channel supervisor with integrated watchdog and manual reset capabilities is required. The 2.63V threshold suits applications monitoring 3.3V logic levels. The 8-SOIC package offers a compact footprint for space-constrained designs. Consider the -40°C to 85°C temperature range for industrial environments. Verify that the 140ms minimum timeout meets the system's startup sequence requirements.

Supervisors Part Context

This part belongs to the ISL88708 family of microprocessor supervisors from Renesas. The family includes variants with different thresholds and packages, such as IP831Z and IP844Z. These devices are designed to monitor voltage rails and provide reset signals to digital logic. The ISL88708 series integrates multiple protection features into a single small package, reducing component count in power management designs.

Supervisors Replacement Considerations

Potential substitutes include ISL88708IB831Z and ISL88708IP844Z. Verify that alternative parts match the 2.63V threshold and 8-SOIC package. Check if the replacement supports the same open-drain/push-pull output options. Ensure the watchdog and manual reset functionalities are present in the substitute component.

Supervisors FAQ

What is the minimum reset timeout for the ISL88708IB826Z-TK?

The datasheet specifies a minimum reset timeout of 140ms.

Does the ISL88708IB826Z-TK support manual reset?

Yes, the device includes a manual reset input function alongside its automatic power-on reset and watchdog features.