MAX6355SVUT

Overview

The MAX6355SVUT+T is a dual/triple-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors up to three input supply voltages and asserts active-low reset outputs when any voltage drops below its preset threshold. The device operates within a supply range of 1.2V to 5.5V and features a manual reset input with debouncing. It utilizes an SOT-23-6 package and maintains a low quiescent current of 20µA. The circuit provides a minimum power-on reset pulse width of 100ms and ensures output validity as long as inputs remain above +1.0V.

Feature Summary

• Monitors multiple power-supply voltages with precision factory-set thresholds
• Includes a debounced, TTL/CMOS-compatible manual reset input
• Provides active-low reset outputs that assert when monitored voltages fall below thresholds

Applications

• Microprocessor system power supervision
• Multi-rail voltage monitoring in embedded systems
• Portable electronic devices requiring low standby current

Procurement Notes

Verify the specific suffix for the requested variant, as the MAX6355 series includes options with different voltage thresholds and output configurations. Confirm RoHS compliance status and check for obsolescence notices, as some variants may have limited availability or be discontinued. Ensure the selected part matches the required voltage thresholds and package type for the design.

Selection Notes

Select this component when simultaneous monitoring of two or three distinct voltage rails is required within a single IC. Compare threshold voltages against the specific supply rails to ensure accurate detection. Consider the SOT-23-6 package size constraints and the 20µA supply current requirement for battery-operated applications. Verify compatibility with the system's manual reset logic requirements.

Part Context

The MAX6355SVUT+T belongs to the MAX6351–MAX6360 family of microprocessor supervisors. This series improves system reliability by integrating multiple reset functions into a compact footprint compared to discrete solutions. The family offers various threshold combinations and output types to accommodate diverse multi-voltage architectures.

FAQ

What is the minimum supply voltage required for the MAX6355SVUT+T to operate?

The device operates from a supply voltage range of 1.2V to 5.5V.

Does the MAX6355SVUT+T include a watchdog timer?

No, the MAX6355 variant does not include a watchdog timer; this feature is available in MAX6358/MAX6359/MAX6360 variants.

How many voltage inputs can the MAX6355SVUT+T monitor?

It can monitor up to three input supply voltages.