MIC809TYC3

Supervisors Overview

The MIC809TYC3 is a voltage supervisory circuit manufactured by Microchip Technology, designed as a microprocessor reset generator. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 2.75 V for monitoring power rails. The device provides an active-low, push-pull output signal to ensure reliable system resets. It includes a typical reset delay time of 240 ms to allow power supplies to stabilize before asserting the reset state. The component is housed in a compact SC-70-3 surface-mount package and supports operation across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides active-low push-pull output for direct interface with digital logic inputs
• Monitors a single voltage input channel with a fixed threshold level
• Operates without manual reset functionality or internal watchdog timer

Supervisors Applications

• Microprocessor power supply supervision
• Battery-powered system voltage monitoring
• Embedded controller reset generation

Supervisors Procurement Notes

Verify the specific suffix code against official Microchip documentation to confirm the exact threshold voltage and package variant. Ensure compatibility with the target PCB footprint for the SC-70-3 package. Confirm RoHS compliance status through the manufacturer's current environmental declarations prior to integration into regulated products.

Supervisors Selection Notes

Select this component when a fixed threshold supervisor is required for simple power-on reset applications. The SC-70-3 package offers space efficiency for dense layouts. Consider the 240 ms delay duration to ensure it aligns with the startup requirements of the monitored system components. Verify that the 5.5 V maximum operating voltage covers the peak supply levels of the application.

Supervisors Part Context

This part belongs to the MIC809 series of voltage supervisors from Microchip Technology. The series is characterized by low quiescent current and high accuracy thresholds suitable for portable and battery-operated devices. The MIC809 family typically offers various threshold options and package configurations to support diverse design constraints in consumer and industrial electronics.

Supervisors Replacement Considerations

Consult official substitution lists for equivalent parts with matching threshold voltages and package types. Verify pinout compatibility and electrical specifications such as reset delay and operating voltage range before replacing.