MIC6315-30D3U TR

Supervisors Overview

The MIC6315-30D3U TR is a supervisory circuit reset generator manufactured by Microchip Technology. It features an active low, open-drain /RESET output and supports manual reset functionality via the /MR pin. The device monitors power supplies with a designated threshold voltage of 3.0V. It guarantees a minimum reset timeout of 140ms after VCC rises above the threshold. Operating parameters include a maximum supply voltage of 5.5V and a minimum operating voltage of 1V. The component operates within a temperature range of -40°C to +85°C and consumes a typical quiescent current of 5µA.

Supervisors Feature Summary

• Provides precise voltage monitoring for microprocessor-based systems
• Asserts reset signal when supply drops below threshold or manual input is triggered
• Maintains valid reset output even at very low supply voltages

Supervisors Applications

• Microprocessor system power supply monitoring
• Embedded controller reset generation
• Portable electronic device power management

Supervisors Procurement Notes

Verify the specific suffix D3U against official Microchip documentation to confirm the exact threshold voltage and timeout characteristics. Ensure the ordering part number matches the required SOT-143 package and lead-free specifications. Cross-reference datasheet revisions to confirm compatibility with existing design constraints before procurement.

Supervisors Selection Notes

Select this component for applications requiring a simple, low-cost supervisor for single-channel power rails. The fixed threshold eliminates external resistor networks. Consider the 140ms timeout duration relative to the target processor's startup requirements. Verify that the open-drain output configuration aligns with the downstream logic interface requirements.

Supervisors Part Context

This part belongs to the MIC6315 series of µP reset circuits originally developed by Micrel and now produced by Microchip Technology. The series offers various threshold options to accommodate 3V, 3.3V, and 5V systems. The MIC6315-30 variant specifically targets 3V nominal supply applications, providing a standardized solution for embedded reset needs in compact surface-mount packages.

Supervisors Replacement Considerations

Compatible substitutes within the MIC6315 family include MIC6315-29D3UY-TR (2.93V threshold) and MIC6315-31D3UY-TR (3.08V threshold). These parts share identical pinouts and functional characteristics but differ in reset threshold voltage. Verify that the alternative threshold meets the specific power rail tolerance requirements of the application.