MAX6355MRUT+

Overview

The MAX6355MRUT+T is a dual/triple-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors up to three input voltages and provides reset outputs when thresholds are breached. The device features active-low, open-drain outputs with a manual reset input. Key electrical parameters include a maximum supply voltage of 5.5 V, a reset delay time of 180 ms, and an operating current of 20 uA. Threshold voltages for this specific variant are 2.63 V and 4.38 V, with overvoltage thresholds at 2.68 V and 4.46 V. Accuracy is specified at 1.5%. The component operates within a temperature range of -40°C to +85°C and is housed in an SOT-23-6 package.

Feature Summary

• Monitors multiple power-supply voltages with precision factory-set thresholds
• Provides active-low reset outputs referenced to monitored supplies
• Includes debounced manual reset input compatible with TTL/CMOS logic

Applications

• Microprocessor system power supervision
• Embedded controller voltage monitoring
• Portable electronic device power management

Procurement Notes

Verify the exact suffix (e.g., MRUT+T) against official datasheets to confirm threshold levels and package type. Confirm end-of-life status and availability through authorized distributors. Ensure RoHS compliance documentation matches the specific manufacturing batch. Cross-reference pinout configurations with target PCB layout requirements before procurement.

Selection Notes

Select this component when simultaneous monitoring of two or three distinct voltage rails is required. The open-drain output configuration allows for flexible interfacing with various logic families. Consider the 180 ms reset delay and 1.5% accuracy for timing-critical applications. Evaluate the low quiescent current for battery-powered designs requiring extended operational life.

Part Context

This part belongs to the MAX6355M series of supervisory circuits designed for microprocessor applications. It integrates multiple voltage monitors into a single compact package, reducing board space compared to discrete solutions. The series offers various threshold options to accommodate standard voltage rails such as 2.5V, 3.3V, and 5V systems.

Replacement Considerations

Public confirmed substitute part numbers: None identified.