MAX6309UK29D3-T

Supervisors Overview

The MAX6309UK29D3-T is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It features a SOT-23-5 package and operates within a supply voltage range of 1V to 5.5V. The device provides a fixed reset threshold of 2.9V with an accuracy of 2.5%. It includes a manual reset input, an active-low open-drain output, and a typical reset delay of 225ms. Supply current is 8µA, and it functions across temperatures from -40°C to +85°C.

Supervisors Feature Summary

• Monitors multiple power supplies for under/overvoltage conditions
• Includes manual reset input capability
• Immune to fast transients on monitored supplies

Supervisors Applications

• Portable computers
• Personal computer systems monitoring 5V and 3.3V rails
• Controllers and intelligent instruments
• Multivoltage embedded control systems

Supervisors Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration against the manufacturer's official part numbering guide. Confirm that the UK29 designation corresponds to the required 2.9V threshold voltage for your application design. Check current availability status as distribution channels may list limited stock or end-of-life statuses for this component.

Supervisors Selection Notes

Select this component when simultaneous monitoring of multiple voltage rails is required in space-constrained designs. The SOT-23-5 package suits portable applications where low supply current is critical. Ensure the fixed 2.9V threshold aligns with the target supply voltage levels. Verify that the open-drain output type matches the system logic requirements without needing additional pull-up components.

Supervisors Part Context

This part belongs to the MAX6305–MAX6313 family of 5-pin multiple-input programmable reset ICs. These devices are engineered to assert a system reset if any monitored supply falls outside programmed thresholds. The series is optimized for personal computer systems and portable equipment, offering factory-set precision thresholds and immunity to short transients.

Supervisors Replacement Considerations

Compatible substitutes within the same family include MAX6305 through MAX6313 variants, provided they match the SOT-23-5 package and required reset threshold voltage. Cross-reference specific suffixes for packaging and temperature grade differences.