MAX6356SYUT+T

Overview

The MAX6356SYUT+T is a dual/triple-voltage microprocessor supervisory circuit from the MAX6356L series. It monitors up to three independent power supplies, asserting an active-low push-pull reset output when any input drops below its preset threshold. Key electrical parameters include a maximum supply voltage of 5.5 V, a typical reset delay time of 180 ms, and a quiescent supply current of 20 µA. The device features a manual reset input and operates within an extended temperature range of -40°C to +85°C.

Feature Summary

• Monitors multiple independent power-supply voltages with precision factory-set thresholds
• Provides active-low, push-pull reset outputs referenced to specific supply rails
• Includes debounced manual-reset input compatible with TTL/CMOS logic levels

Applications

• Multi-rail embedded system power monitoring
• Microprocessor reset generation in industrial control units
• Battery-powered devices requiring low standby current

Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors. Confirm the suffix 'SY' matches the required voltage threshold specifications for your design. Check RoHS compliance documentation for environmental regulations. Ensure the SOT-23-6 package footprint aligns with your PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component when simultaneous monitoring of two or three distinct voltage rails is required. The fixed threshold voltages eliminate the need for external resistor dividers. Consider the 20 µA supply current for battery-sensitive applications. Verify that the 180 ms reset delay meets the startup timing requirements of the connected microprocessor or FPGA.

Part Context

This part belongs to the MAX635x family of voltage supervisors designed to enhance system reliability. Unlike discrete solutions, these integrated circuits offer precise threshold accuracy and reduced board space. The MAX6356 variant specifically supports triple-voltage monitoring, making it suitable for complex systems with multiple power domains compared to simpler dual-input counterparts.

Replacement Considerations

Direct functional substitutes within the same series include MAX6356SYUK+T and MAX6356SYUT+T variants with identical pinouts. Cross-reference threshold voltages carefully as different suffixes indicate different trip points. Ensure replacement parts maintain the same SOT-23-6 package and operating temperature range.