MAX6309UK46D4+

Supervisors Overview

The MAX6309UK46D4+ is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It features a fixed reset threshold voltage of 4.63V and supports a maximum supply voltage of 5.5V. The device provides an active low push-pull output with a minimum reset delay time of 1.12s. It operates within a temperature range of 0°C to 70°C and is housed in a SOT-23-5 package.

Supervisors Feature Summary

• Monitors more than one power supply for system integrity
• Asserts system reset if monitored supplies fall outside programmed thresholds
• Designed to ignore fast transients on any monitored supply

Supervisors Applications

• Monitoring 5V and 3.3V supplies in personal computer systems
• Portable applications requiring low supply current
• Microprocessor (µP) supervisory circuits

Supervisors Procurement Notes

Verify the exact suffix D4 against official Analog Devices documentation, as datasheets for the MAX6309 series typically utilize different suffixes like D1 or D2 for specific threshold voltages. Confirm RoHS compliance status and lead-free designation directly from the manufacturer's latest release notes or component traceability records before procurement.

Supervisors Selection Notes

Select this component when a fixed 4.63V threshold is required for multi-supervision tasks. Ensure the operating environment stays within the 0°C to 70°C commercial temperature range. Verify that the SOT-23-5 package dimensions fit the PCB layout constraints and that the push-pull output capability matches the downstream logic requirements.

Supervisors Part Context

This part belongs to the MAX6305–MAX6313 family of 5-pin, multiple-input, programmable reset ICs manufactured by Maxim Integrated, now part of Analog Devices. These devices are specifically engineered for portable applications due to their low supply current consumption and small package size, offering reliable supervision for critical voltage rails.

Supervisors Replacement Considerations

Check for MAX6309 variants with identical 4.63V thresholds and manual reset inputs. Verify pinout compatibility between SOT-23-5 packages. Consider MAX6309UK46D1+T or similar family members only if electrical parameters and package types match exactly.