MIC803-44D3VM3-TR

Supervisors Overview

The MIC803-44D3VM3-TR is a single-channel microprocessor supervisor circuit manufactured by Microchip Technology. It monitors one input voltage with a fixed threshold of 4.38V and provides an active-low open-drain reset output. The device features a minimum reset timeout of 140ms and operates within a supply voltage range of 1V to 5.5V. It is designed for surface-mount installation in the SOT-23-3 package, supporting a junction temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Provides simple reset or power-on-reset functionality with an active-low open-drain output
• Monitors a single voltage channel with a fixed threshold level
• Operates over an extended industrial temperature range up to 125°C junction temperature

Supervisors Applications

• Microprocessor system supervision
• Voltage monitoring in embedded systems
• Power management circuit protection

Supervisors Procurement Notes

Verify the specific suffix VM3 indicates the SOT-23-3 package configuration when sourcing. Confirm RoHS3 compliance status as per current manufacturer documentation. Ensure the order quantity matches the tape-and-reel packaging requirements specified by the distributor. Cross-reference the DigiKey part number 576-3834-2-ND for accurate identification during procurement processes.

Supervisors Selection Notes

Select this component when a fixed 4.38V threshold is required for system supervision. The open-drain output allows flexibility in interfacing with various logic levels. Consider the 140ms minimum timeout for applications requiring stable power-up sequences. Verify that the SOT-23-3 package fits the available PCB footprint constraints.

Supervisors Part Context

This part belongs to the MIC803 series of supervisory circuits from Microchip Technology. The series offers various voltage thresholds and package options to suit different design needs. The MIC803-44D3VM3-TR specifically targets applications needing a 4.38V monitor in a compact surface-mount form factor.

Supervisors Replacement Considerations

Other MIC803 variants with different voltage thresholds or packages may serve as alternatives if electrical parameters align. Verify pin compatibility and reset timing characteristics before substitution.