MIC6315-26D4UY-TR

Supervisors Overview

The MIC6315-26D4UY-TR is a voltage supervisory circuit manufactured by Microchip Technology, designed to monitor power supplies in microprocessor-based systems. It features an active low, open-drain reset output and supports manual reset functionality via the /MR pin. The device triggers a reset if the supply voltage drops below its designated threshold or if the manual reset input is forced low. Key electrical parameters include a reset threshold voltage of 2.63 V, a maximum supply voltage of 5.5 V, and a minimum operating voltage of 1 V. The reset delay time is specified at 1.5 seconds, with a typical quiescent current of 5 uA. It operates within a temperature range of -40°C to +85°C and is housed in a SOT-143-4 surface-mount package.

Supervisors Feature Summary

• Provides precise voltage monitoring for system power rails with a dedicated threshold level.
• Features an active low, open-drain reset output compatible with various logic families.
• Includes manual reset capability allowing external assertion of the reset state.

Supervisors Applications

• Microprocessor-based system power supply monitoring
• Voltage supervision for 3V and 3.3V powered circuits
• Embedded system reset generation

Supervisors Procurement Notes

Verify the specific suffix D4UY corresponds to the required 1.5s reset delay and 2.63V threshold during procurement. Confirm RoHS compliance status as indicated in official documentation. Ensure the SOT-143-4 package type matches the PCB footprint requirements. Check for any recent Product Change Notifications (PCN) regarding manufacturing location or packaging updates from Microchip Technology before finalizing orders.

Supervisors Selection Notes

Select this component when a fixed 2.63V threshold is appropriate for the monitored rail. The 1.5-second reset delay suits applications requiring extended stabilization time after power-up. Consider the open-drain output configuration for level shifting needs. Evaluate the 5 uA quiescent current against battery life requirements if applicable. Ensure the manual reset pin is utilized or tied off according to design specifications.

Supervisors Part Context

This part belongs to the MIC6315 family of simple reset generators originally developed by Micrel and now produced by Microchip Technology. The family offers various threshold voltages and reset delays to accommodate different system requirements. The MIC6315 series is widely used in portable electronics and industrial control systems where reliable power supervision is critical. The D4UY suffix specifically denotes the 2.63V threshold and 1.5s delay variant.

Supervisors Replacement Considerations

Cross-reference other MIC6315 variants with different thresholds (e.g., MIC6315-30D4UY-TR for 3.0V) if the 2.63V level is unsuitable. Verify compatibility with alternative supervisors offering similar open-drain outputs and manual reset features. Ensure replacement parts maintain the same SOT-143-4 package and electrical characteristics.