MAX6339KUT+T

Overview

The MAX6339KUT+T is a quad voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors four independent power supply rails simultaneously within a compact SOT-23-6 surface-mount package. The device features active-low open-drain reset outputs for each monitored channel, ensuring reliable system protection. It operates with a maximum supply voltage of 5.5 V and includes a fixed reset delay time of 200 ms to prevent false triggering during power transitions. The component supports an adjustable threshold voltage alongside three fixed thresholds, providing flexibility for various logic families. It functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Simultaneous monitoring of four independent voltage inputs
• Active-low open-drain reset outputs per channel
• Adjustable and fixed threshold voltage options
• Compact SOT-23-6 surface-mount packaging

Applications

• Portable equipment power management
• Battery-powered systems supervision
• Microprocessor reset circuits
• Embedded controller power monitoring

Procurement Notes

Verify the specific suffix 'K' against official Analog Devices documentation to confirm the exact threshold configuration, as suffixes define voltage levels. Ensure the '+T' designation matches the required tape-and-reel packaging format for your assembly process. Confirm RoHS compliance status through the manufacturer's current datasheet, as environmental declarations may vary by production batch. Cross-reference the part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when simultaneous monitoring of multiple voltage rails is required in space-constrained designs. The adjustable threshold option allows customization for non-standard voltage levels not covered by fixed variants. Consider the 200 ms reset delay duration to ensure compatibility with the target system's power-up sequence requirements. Verify that the open-drain output capability aligns with the pull-up resistor requirements of the connected microcontroller or logic interface.

Part Context

This part belongs to the MAX6339 series of low-power quad supervisors designed for portable applications. It complements other Maxim Integrated monitoring solutions by offering multi-channel supervision in a minimal footprint. The series targets battery-operated devices where power efficiency and board space are critical constraints. It integrates functionality typically requiring multiple discrete components into a single monolithic IC.

Replacement Considerations

Consult the official Analog Devices cross-reference guide for verified substitute part numbers. Direct replacements must maintain identical pinout, package type (SOT-23-6), and functional specifications. Generic equivalents may differ in threshold accuracy or operating temperature ranges.