MAX6307UK45D2+

Supervisors Overview

The MAX6307UK45D2+ is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It operates within a supply voltage range of 1V to 5.5V and features an active low, open-drain output. The device monitors two inputs with factory-programmed thresholds for 3.3V and 5V rails. It includes a reset delay time of 1.4ms and consumes 8µA of operating supply current. The component is housed in a compact SOT-23-5 package.

Supervisors Feature Summary

• Monitors more than one power supply to assert system reset if any monitored supply falls outside the programmed threshold
• Specifically designed to ignore fast transients on any monitored supply
• Available in a small SOT-23-5 package suitable for portable applications

Supervisors Applications

• Monitoring 5V and 3.3V power supplies in personal computer systems
• Portable applications requiring low supply current and small package size

Supervisors Procurement Notes

Verify the specific suffix 'D2+' indicates lead-free compliance and packaging format against the manufacturer's official datasheet revision history. Confirm that the UK designation corresponds to the correct pinout and thermal characteristics for your PCB layout requirements before finalizing procurement.

Supervisors Selection Notes

Select this component when monitoring dual voltage rails such as 5V and 3.3V simultaneously. Ensure the application requires an active low open-drain output and can accommodate the specified 1.4ms reset delay. Verify that the 8µA supply current meets the power budget constraints for the target design.

Supervisors Part Context

This part belongs to the MAX6305–MAX6313 family of CMOS microprocessor supervisory circuits. These devices are engineered to provide reliable reset signals for complex digital systems by tracking multiple voltage levels. The series is characterized by its ability to handle transient noise while maintaining precise threshold detection across various industrial and consumer electronics environments.

Supervisors Replacement Considerations

Check for MAX6307 variants with different threshold codes (e.g., D1, D3) if voltage levels differ. Consider MAX6305 or MAX6306 equivalents for single-input monitoring needs.