MAX6409BS44

Supervisors Overview

The MAX6409BS44 is a supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It functions as a single-channel voltage monitor with a fixed reset threshold of 4.4V. The device features a push-button reset input and provides a low-active open-drain reset output. It operates within a supply voltage range of 1.2V to 5.5V and supports a standard reset timeout period. The component is designed for surface-mount installation in the compact 4-UCSP (1.05x1.05mm) package, suitable for applications requiring precise power management.

Supervisors Feature Summary

• Integrates a push-button reset input for manual system control without external components
• Provides a low-active open-drain reset output for microprocessor supervision
• Features factory-trimmed fixed reset thresholds for accurate voltage monitoring
• Operates over an extended industrial temperature range

Supervisors Applications

• Microprocessor reset circuits in embedded systems
• Battery-powered portable devices requiring voltage supervision
• Consumer electronics with limited board space constraints
• Industrial control systems needing reliable power monitoring

Supervisors Procurement Notes

Verify the specific suffix 'S44' against official manufacturer documentation to confirm the exact reset threshold voltage and package variant. Confirm current availability status as this component may be discontinued or subject to allocation. Ensure compatibility with existing PCB footprints for the 4-UCSP package before procurement.

Supervisors Selection Notes

Select this component when a fixed 4.4V reset threshold is required for system supervision. Consider the 4-UCSP package size for space-constrained designs. Evaluate the need for push-button reset functionality versus software-controlled alternatives. Verify that the open-drain output configuration aligns with the target logic levels of the connected processor.

Supervisors Part Context

This part belongs to the MAX6409 series of supervisory circuits from Maxim Integrated. The series offers various fixed threshold options and package types to accommodate different voltage monitoring requirements. The MAX6409 family is characterized by low quiescent current and compact packaging, making it suitable for battery-operated applications where power efficiency and board real estate are critical factors.

Supervisors Replacement Considerations

Consult official cross-reference lists for verified substitutes such as other MAX6409 variants with different threshold voltages. Ensure any replacement maintains the same 4-UCSP footprint and electrical characteristics. Verify pinout compatibility if substituting with similar supervisor ICs from other manufacturers.