MAX6337US16D3-T

Overview

The MAX6337US16D3-T is a 4-pin, ultra-low-voltage, low-power microprocessor reset circuit featuring manual reset functionality. It monitors a single input voltage with a threshold of 1.6V and an overvoltage threshold of 2.34V. The device provides an active low, open-drain output with a reset delay time of 150 ms. It operates within a supply voltage range up to 5.5 V and maintains accuracy of 1.8%. The component functions reliably across a temperature range from -40°C to +125°C, consuming only 3.3 µA of supply current.

Feature Summary

• Ultra-low voltage operation down to 0.7V with low power consumption
• Precision monitoring of power supply voltages with factory-trimmed thresholds
• Debounced manual-reset input for reliable user intervention
• Open-drain active-low RESET output compatible with various logic families

Applications

• Monitoring power supplies in 1.8V and 2.5V microprocessor systems
• Digital system supervision requiring space-critical 4-pin SOT143 packaging
• Applications necessitating manual reset capability alongside automatic power-on reset

Procurement Notes

Verify the specific suffix D3 against official Analog Devices documentation to confirm the exact threshold voltage variant, as the MAX6337 series offers multiple factory-trimmed options. Ensure compatibility with the required open-drain output configuration and operating temperature range. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Selection Notes

Select this component when space is constrained due to its 4-pin SOT143 package. Choose this part if an open-drain output is required rather than push-pull. Consider the 1.6V threshold specifically for lower voltage rails. Verify that the 150 ms timeout meets system requirements. Compare against MAX6335/MAX6336 if different output polarities or states at low voltages are needed.

Part Context

This device belongs to the MAX6335/MAX6336/MAX6337 family of microprocessor supervisory circuits designed to increase reliability by eliminating external components. While the MAX6335 features an active-high push-pull output and the MAX6336 has an active-low push-pull output, the MAX6337 specifically provides an active-low open-drain output. All variants share similar monitoring capabilities but differ in output structure and guaranteed state at low voltages.

Replacement Considerations

Direct substitutes include MAX6337US16D3+T (tape/reel vs cut tape) and other MAX6337 variants with different threshold voltages such as MAX6337US22D3-T or MAX6337US23D3+T, provided the voltage threshold matches the application design.