MAX6307UK31D3-T

Supervisors Overview

The MAX6307UK31D3-T is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It features two monitored inputs with factory-programmed reset thresholds of 3.3V and 5V. The device provides an active-low, open-drain reset output with a fixed delay time of 200ms. It operates within a supply voltage range up to 5.5V and consumes a typical quiescent current of 8µA. The component is housed in a compact SOT-23-5 package and supports an operating temperature range from 0°C to +70°C.

Supervisors Feature Summary

• Monitors two independent power supply rails simultaneously
• Asserts system reset when any monitored supply falls below the programmed threshold
• Designed to ignore fast transients on monitored supplies
• Provides low supply current consumption suitable for portable applications

Supervisors Applications

• Monitoring 5V and 3.3V supplies in personal computer systems
• Portable electronic devices requiring multi-rail supervision
• Microprocessor system reset generation

Supervisors Procurement Notes

Verify the specific suffix D3 against official Maxim Integrated documentation to confirm the exact threshold configuration and manufacturing lot details. Ensure compatibility with the required operating temperature range of 0°C to +70°C for the target application environment. Cross-reference the SOT-23-5 package dimensions with PCB footprint specifications.

Supervisors Selection Notes

Select this component when dual-supervision of distinct voltage levels is required without external resistors. The fixed 200ms delay and open-drain output simplify interface design with various logic families. Consider the 8µA quiescent current for battery-powered designs where power efficiency is critical compared to higher-current alternatives.

Supervisors Part Context

This part belongs to the MAX6305–MAX6313 family of 5-pin, multiple-input, programmable reset ICs manufactured by Analog Devices Inc./Maxim Integrated. These devices are specifically engineered for microprocessor supervisory applications, offering factory-programmed thresholds to eliminate external resistor networks typically needed for adjustable supervisors.

Supervisors Replacement Considerations

Consult official datasheets for direct pin-compatible substitutes within the MAX6305–MAX6313 series that match the 3.3V/5V threshold requirements and SOT-23-5 packaging constraints.