RS809-2.63YSF3

Overview

The RS809-2.63YSF3 is a power supply monitor and reset circuit manufactured by Runic Technology. It operates within an input voltage range of 1.2V to 5.5V with a fixed threshold voltage of 2.63V. The device features a push-pull output configuration and provides a reset pulse width of 200ms. It supports active-low logic and functions across an extended temperature range from -40°C to +125°C. Packaged in SOT-23, it is designed for low-power applications requiring reliable voltage supervision.

Feature Summary

• Provides precise voltage monitoring with a fixed 2.63V threshold
• Generates reset signals with a 200ms pulse width
• Supports active-low output logic with push-pull drive capability
• Operates reliably across industrial temperature ranges

Applications

• Portable electronic devices requiring battery level monitoring
• Microcontroller system reset circuits
• Embedded systems needing power supply supervision
• Industrial control units operating in extreme temperatures

Procurement Notes

Verify the specific suffix YSF3 corresponds to the required package and tape/reel specifications. Confirm that the 2.63V threshold aligns with the target system's voltage requirements. Ensure compatibility with active-low reset logic in the host design. Check for RoHS compliance documentation if environmental regulations apply. Validate the operating voltage range against the maximum supply available in the application.

Selection Notes

Select this component when a fixed 2.63V supervision threshold is required. The push-pull output allows direct interfacing with digital logic without external pull-ups. Consider the 200ms reset delay for system startup timing. The wide operating voltage range accommodates various single-supply configurations. Evaluate the SOT-23 package size constraints against board space availability.

Part Context

This part belongs to the RS809 series of supervisors from Runic Technology. The series offers various threshold voltages to suit different rail monitoring needs. These ICs are designed for cost-sensitive consumer and industrial electronics. The manufacturer focuses on providing compact solutions for power management tasks.

Replacement Considerations

Compatible substitutes include other RS809 variants with different thresholds, such as RS809-4.00YSF3 or RS809-1.63YSF3, provided the voltage levels match the application requirements. Verify pinout compatibility before substitution.