MAX6307UK31D3+

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 output and operates within a supply voltage range up to 5.5V. It includes a 200ms reset delay time and functions in temperatures from 0°C to +70°C. Packaged in SOT-23-5, it draws 8µA of supply current.

Supervisors Feature Summary

• Monitors two independent power supply rails simultaneously
• Asserts system reset when any monitored supply falls below programmed threshold
• Designed to ignore fast transients on monitored supplies

Supervisors Applications

• Personal computer systems monitoring 5V and 3.3V rails
• Portable applications requiring low supply current
• Microprocessor supervisory circuits

Supervisors Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging if reel quantity is required. Confirm RoHS compliance status via official datasheet as '+T' designation may vary by revision. Check for lead-free certification details specific to this manufacturing lot before integration into regulated assemblies.

Supervisors Selection Notes

Select this component when dual-supervision of distinct voltage levels is necessary without external resistors. The fixed 3.3V and 5V thresholds eliminate programming complexity. Ensure the open-drain output configuration matches the downstream logic requirements. Verify thermal performance within the specified commercial temperature range.

Supervisors Part Context

Part of the MAX6305–MAX6313 family of 5-pin programmable reset ICs. These devices are optimized for portable electronics due to small package size and low power consumption. The series supports various threshold combinations to cover standard logic and memory supply voltages.

Supervisors Replacement Considerations

Cross-reference MAX6307 variants with different threshold suffixes (e.g., UK45, UK26) if voltage requirements differ. Verify pinout compatibility with SOT-23-5 packages. Check for equivalent functionality in newer Maxim Integrated supervisory families.