MAX6444US16K/V+T

Supervisors Overview

The MAX6444US16K/V+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 1.0 V to 5.5 V and features a fixed reset threshold voltage of 1.575 V. The device provides an active-low push-pull output with a typical reset timeout of 140 ms. It supports manual reset functionality via an external input pin, allowing for controlled system restarts. The component is housed in a compact SOT-23-5 surface-mount package, suitable for space-constrained designs. It functions reliably across an extended industrial temperature range from -40°C to +85°C, ensuring stability in demanding environments.

Supervisors Feature Summary

• Integrated manual reset input for controlled system initialization
• Active-low push-pull output driver for direct logic interfacing
• Fixed 1.575 V threshold ensures precise voltage supervision
• Compact SOT-23-5 package minimizes board space requirements

Supervisors Applications

• Microprocessor power supply monitoring
• Battery-operated devices requiring low standby current
• Industrial control systems with strict reset timing requirements
• Portable electronics needing reliable brown-out protection

Supervisors Procurement Notes

Verify the specific suffix 'V' against official Analog Devices documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the exact threshold voltage and package type required for your design. Cross-reference with the manufacturer's latest datasheet to confirm availability status and any potential obsolescence notices before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 1.575 V threshold is required for single-supply monitoring. The manual reset feature makes it suitable for applications necessitating explicit system restarts. Consider the SOT-23-5 footprint for layout constraints. Verify that the 140 ms timeout aligns with your system's power-up sequence requirements. Compare against other MAX6444 variants if different thresholds or packages are needed.

Supervisors Part Context

This part belongs to the MAX644x series of microprocessor reset circuits, designed for low-voltage applications. It complements other Maxim Integrated PMIC solutions by providing essential supervision functions. The series is widely used in consumer and industrial electronics where reliable power management is critical. It shares functional similarities with other supervisory ICs but offers specific threshold and packaging options tailored for compact designs.

Supervisors Replacement Considerations

Direct substitutes include other MAX6444 variants with different threshold voltages (e.g., MAX6444US23K) if the 1.575 V level is not mandatory. Check for pin-compatible alternatives from Analog Devices or other manufacturers offering similar reset functionalities. Ensure replacement parts match the SOT-23-5 package and operate within the same voltage and temperature ranges.