MAX6307UK34D3-T

Supervisors Overview

The MAX6307UK34D3-T is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It operates within a supply voltage range of 1.2V to 5.5V and features a low supply current of 8µA. The device monitors two inputs with fixed reset thresholds at 3.3V and 5V. It provides an active-low, open-drain reset output with a typical delay time of 200ms. The component is housed in a compact SOT-23-5 package and supports an operating temperature range from 0°C to +70°C.

Supervisors Feature Summary

• Monitors two independent power supply rails simultaneously
• Asserts system reset when monitored voltages fall below programmed thresholds
• Provides manual reset input capability for controlled system initialization
• Designed to ignore fast transients on monitored supplies

Supervisors Applications

• Personal computer systems monitoring 5V and 3.3V rails
• Portable electronic devices requiring low power consumption
• Embedded systems with multiple voltage domains
• Industrial control units requiring reliable power supervision

Supervisors Procurement Notes

Verify the specific suffix D3 against official Analog Devices documentation to confirm the exact threshold configuration and revision level. Ensure compatibility with the target PCB footprint for the SOT-23-5 package. Confirm that the commercial temperature range meets the operational requirements of the end application before finalizing procurement.

Supervisors Selection Notes

Select this component when simultaneous monitoring of two distinct voltage levels is required without external comparator circuits. The integrated manual reset feature offers flexibility for system initialization sequences. Consider the 8µA quiescent current for battery-powered designs where standby power efficiency is critical. Verify that the open-drain output interface aligns with 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 applications needing robust power supervision in a minimal footprint. The family shares common architectural features while varying in threshold settings and input configurations.

Supervisors FAQ

Does the MAX6307UK34D3-T include a watchdog timer?

No, the MAX6307UK34D3-T does not include a built-in watchdog timer. It functions solely as a voltage supervisor with reset output capabilities.

What is the output type of the reset signal?

The reset output is active-low and open-drain, allowing for wired-OR connections with other supervisory signals or logic gates.