MAX6355RVUT+

Overview

The MAX6355RVUT+ is a triple-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors three independent voltage rails within a compact SOT-23-6 surface-mount package. The device features an active-low open-drain reset output with a fixed 180 ms reset delay time to ensure stable power-up sequencing. It operates over an extended temperature range from -40°C to +85°C and supports a maximum supply voltage of 5.5 V. The circuit draws a typical operating supply current of 20 µA, providing efficient monitoring for low-power embedded systems without requiring external components.

Feature Summary

• Monitors three distinct voltage inputs simultaneously for comprehensive system supervision
• Provides manual reset capability via an integrated push-button interface
• Delivers precise fault detection with high accuracy threshold specifications
• Utilizes a compact six-pin SOT-23 package for space-constrained designs

Applications

• Embedded processor power supply monitoring
• Portable electronic device voltage supervision
• Industrial control system power integrity verification

Procurement Notes

Verify the specific suffix 'R' in the part number to confirm the exact threshold voltages, as the MAX6355 series offers multiple voltage options. Confirm RoHS compliance status through official manufacturer documentation before integration. Check for obsolescence notices or lifecycle changes directly from Analog Devices, as distribution availability may vary significantly across regions and authorized channels.

Selection Notes

Select this component when simultaneous monitoring of three voltage rails is required in a minimal footprint. Ensure the specific threshold voltages associated with the 'R' suffix match the target power rails. Consider the 180 ms reset delay duration against system startup requirements. Verify that the open-drain output configuration aligns with the downstream logic levels and pull-up resistor requirements of the monitored processor or microcontroller.

Part Context

This component belongs to the MAX6355 family of dual and triple-voltage supervisory circuits designed for microprocessor applications. The RVUT+ variant specifically denotes the triple-voltage configuration with defined thresholds, packaged in tape-and-reel format for automated assembly. It serves as a critical reliability element in ensuring proper system initialization and protection against brown-out conditions in complex digital electronics.

Replacement Considerations

Direct pin-compatible substitutes within the same series include MAX6355MRUT+T and MAX6355LSUT+T, provided their specific threshold voltages match the application requirements. Verify electrical parameters carefully, as different suffixes indicate varying trip points. Cross-reference with newer generations of supervisory ICs if long-term supply assurance is a priority.