MAX6444US46L+T

Supervisors Overview

The MAX6444US46L+T is a microprocessor reset circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1 V to 5.5 V and features a fixed reset threshold of 4.625 V. The device provides an active-low output with open-drain or open-collector configuration and ensures a minimum reset timeout of 140 ms. Designed for surface mount applications, it is housed in an SOT-143-4 package and supports an extended operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides reliable system reset for microprocessors with a fixed 4.625 V threshold
• Features manual reset input capability for controlled startup sequences
• Delivers active-low output signal via open-drain or open-collector interface

Supervisors Applications

• Microprocessor power supply monitoring
• Battery backup system supervision
• Embedded control systems requiring precise reset timing

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check current lifecycle status as availability may be limited. Ensure the specific suffix matches design requirements before ordering.

Supervisors Selection Notes

Select this part when a fixed 4.625 V threshold is required for single-supply monitoring. Consider the SOT-143-4 package size constraints and the need for active-low reset signaling. Evaluate if the manual reset feature aligns with system startup logic requirements.

Supervisors Part Context

Part of the MAX6444 series designed for low-power microprocessor reset applications. Shares functional similarities with other Maxim reset ICs but offers specific threshold and packaging options tailored for compact embedded designs.

Supervisors Replacement Considerations

MAX6444US22L+T: Offers similar functionality with a different reset threshold (2.188 V). Verify threshold compatibility before substitution.