MAX6355RWUT

Overview

The MAX6355RWUT is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, designed for monitoring multiple power-supply voltages in microprocessor systems. It features three monitored inputs with fixed thresholds of 1.67V and 2.63V, plus an adjustable threshold. The device operates within a supply voltage range up to 5.5V and consumes only 20µA of supply current. It provides active-low open-drain or open-collector reset outputs with a minimum 100ms power-on reset pulse width. The component is housed in a compact SOT-23-6 package and supports surface-mount installation.

Feature Summary

• Monitors three distinct voltage levels including two fixed and one adjustable threshold
• Provides active-low reset outputs compatible with open-drain or open-collector configurations
• Includes debounced manual reset input for system control
• Operates with ultra-low 20µA supply current for energy efficiency

Applications

• Microprocessor supervisory circuits requiring multiple voltage monitoring
• Portable battery-powered devices needing low quiescent current
• Industrial control systems operating in extended temperature ranges
• Embedded systems requiring reliable power-fail detection

Procurement Notes

Verify the exact suffix (RWUT) against official Analog Devices documentation to confirm pinout and threshold specifications. Confirm RoHS compliance status through manufacturer datasheets. Check current availability as distribution status may vary by region. Ensure the selected variant matches the required voltage thresholds for your specific application design.

Selection Notes

Select this component when three independent voltage rails require supervision within a single IC footprint. The adjustable threshold offers flexibility for non-standard voltage levels. Compare against the MAX6358 series if watchdog timer functionality is required instead of the third voltage monitor. Verify that the open-drain output configuration aligns with your system's pull-up requirements.

Part Context

The MAX6355RWUT belongs to the MAX635x family of dual/triple-voltage microprocessor supervisors. This series improves system reliability by integrating multiple reset functions into a single package compared to discrete components. The RWUT designation indicates a specific thermal and packaging variant within the SOT-23-6 form factor, optimized for surface-mount assembly processes.

Replacement Considerations

The MAX6356RWUT serves as a direct functional substitute within the same family, offering similar triple-voltage monitoring capabilities. Both parts share identical package dimensions and electrical characteristics. Verify threshold compatibility before substitution. Other MAX635x variants may differ in output type or additional features like watchdog timers.