MAX6343ZUT+T

Overview

The MAX6343ZUT+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of +1V to +5.5V and features a fixed reset threshold voltage of 4.38V. The device provides an active-low, open-drain reset output without manual reset or watchdog timer capabilities. It is housed in a compact SOT-23-6 package and supports surface-mount installation. The component functions across an extended temperature range from -40°C to +125°C, ensuring reliable performance in demanding digital system environments.

Feature Summary

• Monitors power supplies in digital systems to improve reliability
• Provides factory-trimmed reset threshold voltages for accuracy
• Features low-power operation suitable for battery-driven applications

Applications

• Digital system power supply monitoring
• Microprocessor reset circuits
• Battery-powered devices requiring voltage supervision

Procurement Notes

Verify the specific suffix ZUT against official datasheets to confirm pinout and electrical characteristics. Confirm RoHS compliance status through manufacturer documentation. Check current availability as distribution channels may list limited stock or end-of-life status. Ensure the ordering part number matches the required threshold voltage and package type exactly.

Selection Notes

Select this component when a fixed 4.38V reset threshold is required for systems operating between 1V and 5.5V. Consider the SOT-23-6 package for space-constrained designs. Verify that the open-drain output configuration aligns with the downstream logic requirements. Ensure the operating temperature range meets the application's environmental specifications.

Part Context

This part belongs to the MAX6342–MAX6345 family of µP supervisory circuits. These devices are designed to replace separate ICs or discrete components for improved system reliability. The family offers various threshold options and output configurations to suit different monitoring needs in portable and industrial electronics.

Replacement Considerations

Consult official substitution guides for compatible parts within the MAX634x series or equivalent voltage supervisors. Verify pin compatibility and electrical parameters before replacing.