MIC6315-31D2U TR

Supervisors Overview

The MIC6315-31D2UY-TR is a voltage supervisory circuit manufactured by Microchip Technology, designed for monitoring 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 monitors a single input channel with a precise threshold voltage of 3.08V. It operates within a supply voltage range up to 5.5V and provides a minimum reset timeout of 28ms after VCC rises above the threshold. The component is housed in a compact SOT-143-4 surface-mount package and functions reliably across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides active low open-drain reset output valid down to low supply voltages
• Includes manual reset input capability for system control flexibility
• Offers precision voltage monitoring tailored for specific power rail thresholds

Supervisors Applications

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

Supervisors Procurement Notes

Verify the exact suffix D2UY to confirm the 3.08V threshold specification, as variations exist within the MIC6315 family. Ensure the ordering code includes the TR designation for tape-and-reel packaging compatibility with automated assembly processes. Cross-reference the manufacturer datasheet to confirm RoHS compliance status and moisture sensitivity level requirements for storage and handling procedures prior to soldering.

Supervisors Selection Notes

Select this component when a fixed 3.08V threshold is required for 3V or 3.3V system architectures. The open-drain output necessitates an external pull-up resistor; ensure the resistor value aligns with the target logic voltage levels. Consider the 28ms timeout duration against system startup requirements. Verify that the manual reset feature integrates correctly with existing control logic without causing unintended state changes during normal operation.

Supervisors Part Context

This part belongs to the MIC6315 series of inexpensive reset generator circuits originally developed by Micrel, now produced by Microchip Technology. The series provides various threshold options to accommodate different standard power supply voltages. The MIC6315-31 variant specifically targets applications requiring a 3.08V detection point, distinguishing it from other series members like the MIC6315-30 or MIC6315-41 which offer different voltage thresholds.

Supervisors Replacement Considerations

Direct substitutes include MIC6315-31D3UY-TR and MIC6315-31D4UY-TR, which share identical electrical characteristics and pinouts but may differ in manufacturing lot revisions. Generic replacements require matching the 3.08V threshold, SOT-143-4 package, and active-low open-drain output configuration.