MAX6307UK45D3-T

Supervisors Overview

The MAX6307UK45D3-T is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It operates within a supply voltage range up to 5.5V and features an active-low, open-drain reset output. The device monitors two inputs with factory-set thresholds of 3.3V and 5V. It includes a manual reset input and has a typical reset delay time of 200ms. The component is housed in a compact SOT-23-5 package and supports surface-mount installation.

Supervisors Feature Summary

• Monitors multiple power supplies simultaneously for system integrity
• Includes manual reset input for controlled system initialization
• Active-low open-drain reset output ensures compatibility with various logic families
• Compact SOT-23-5 package suitable for space-constrained portable designs

Supervisors Applications

• Personal computer systems monitoring 5V and 3.3V rails
• Portable computers requiring low supply current
• Multivoltage embedded control systems
• Battery-powered equipment with multiple voltage domains

Supervisors Procurement Notes

Verify the specific suffix D3 against the manufacturer's official datasheet to confirm the exact threshold configuration and revision level. Ensure the ordering part number matches the required pinout and electrical characteristics for your design. Cross-reference with Analog Devices documentation to confirm availability and compliance status before finalizing procurement.

Supervisors Selection Notes

Select this component when simultaneous monitoring of two distinct voltage levels is required without external programming components. The fixed 3.3V and 5V thresholds make it ideal for standard PC architectures. Consider the 8µA supply current for battery-sensitive applications. Verify that the open-drain output interface aligns with the target microprocessor's reset input requirements.

Supervisors Part Context

This part belongs to the MAX6305–MAX6313 family of 5-pin, multiple-input programmable reset ICs from Maxim Integrated. These devices are engineered to ignore fast transients on monitored supplies, ensuring stable operation in noisy environments. The family offers precision factory-set thresholds in 0.1V increments, providing reliable supervision for complex multi-voltage systems.

Supervisors Replacement Considerations

Check for MAX6307 variants with different suffixes (e.g., D1, D2) if alternative threshold combinations or reset delays are needed. Ensure any substitute maintains the SOT-23-5 footprint and compatible electrical specifications for direct replacement.