MAX6309UK44D3+

Supervisors Overview

The MAX6309UK44D3+ is a single-input voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of up to 5.5 V and features a fixed threshold voltage of 4.375 V. The device provides an active low, push-pull output with a reset delay time of 1.4 ms. It supports manual reset functionality and consumes a typical operating supply current of 8 uA. The component is housed in a SOT-23-5 surface-mount package and is rated for operation between -40°C and +85°C.

Supervisors Feature Summary

• Provides system reset assertion when monitored supply voltage falls below the programmed threshold
• Includes manual reset input pin for external control of the reset state
• Designed to ignore fast transients on the monitored supply line

Supervisors Applications

• Monitoring power supplies in personal computer systems
• Portable electronic applications requiring low supply current
• Microprocessor (µP) supervisory circuits

Supervisors Procurement Notes

Verify the exact part number suffix against official documentation, as distributor listings may contain typos or conflicting data. Confirm RoHS compliance status and lead-free certification directly from the manufacturer datasheet before procurement. Check for obsolescence or limited availability status through authorized channels.

Supervisors Selection Notes

Select this component for applications requiring a single-channel voltage supervisor with manual reset capability. Ensure the 4.375 V threshold aligns with the target supply rail. Consider the SOT-23-5 package size for space-constrained designs. Verify that the 8 uA quiescent current meets the system's power budget requirements.

Supervisors Part Context

This device belongs to the MAX6305–MAX6313 family of CMOS microprocessor supervisory circuits. These ICs are designed to monitor multiple power supplies, though specific variants like this one handle single inputs. They are characterized by low supply current and small package options suitable for portable applications.

Supervisors FAQ

Does the MAX6309UK44D3+ include a watchdog timer?

No, this specific variant does not include a watchdog timer function.

What is the output type of the reset signal?

The reset output is active low with a push-pull configuration.