MAX6355SYUT+T

Overview

The MAX6355SYUT+T is a dual/triple-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors multiple power-supply voltages to improve system reliability. The device features active-low, open-drain reset outputs and operates within an extended temperature range of -40°C to +85°C. Key electrical parameters include a maximum supply voltage of 5.5 V, a typical supply current of 20 µA, and a reset delay time of 180 ms. Threshold voltages are factory-set, with specific examples including 2.63 V and 4.38 V for certain variants in the series. The component is housed in a compact SOT-23-6 surface-mount package.

Feature Summary

• Monitors up to three independent voltage inputs to ensure system stability
• Provides active-low debounced manual reset input compatibility
• Offers precision factory-set power-supply reset thresholds
• Maintains output validity as long as any input supply remains above 1.0 V

Applications

• Microprocessor (µP) system power monitoring
• Dual or triple voltage supply supervision
• Embedded systems requiring precise voltage threshold detection

Procurement Notes

Verify the exact suffix and manufacturer lot code against the official datasheet to ensure compatibility with your design requirements. Confirm RoHS compliance status and check for obsolescence notices, as availability may vary by region. Ensure the SOT-23-6 footprint matches your PCB layout specifications before procurement.

Selection Notes

Select this component when monitoring two or three distinct voltage rails is required. Compare threshold voltages against your specific supply levels to ensure accurate triggering. Consider the open-drain output type for level shifting needs. Verify that the 180 ms reset delay meets your system's startup timing constraints.

Part Context

This part belongs to the MAX6351–MAX6360 family of microprocessor supervisors. These devices are designed to replace discrete components, offering improved accuracy and reliability. The series supports various threshold levels and packages, including SOT-23-5 and SOT-23-6, catering to diverse space and performance requirements in portable and industrial electronics.

Replacement Considerations

Check for direct pin-compatible substitutes within the MAX635x series with matching threshold voltages. Verify if alternative manufacturers offer equivalent triple-voltage supervisors with similar open-drain outputs and SOT-23-6 packaging.