MAX6855UK31D1+T

Supervisors Overview

The MAX6855UK31D1+T is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 3.2 V. The device provides an active-low, push-pull reset output with a minimum timeout period of 10 ms. Designed for surface-mount installation in a compact SOT-23-5 package, it functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides hardware-based voltage monitoring with a factory-trimmed reset threshold
• Delivers a deterministic active-low reset signal via a push-pull output stage
• Ensures system stability through a guaranteed minimum reset timeout duration

Supervisors Applications

• Microprocessor power supply supervision
• Battery-powered electronic systems
• Portable consumer devices requiring low standby current

Supervisors Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm that the specific suffix D1 corresponds to the required 3.2 V threshold and 10 ms timeout parameters. Ensure the SOT-23-5 footprint matches the design layout. Check for obsolescence status as this part may be discontinued or subject to limited availability constraints.

Supervisors Selection Notes

Select this component when a simple, low-current supervisor is needed for a single rail. The push-pull output allows direct driving of logic inputs without external pull-ups. Verify that the 3.2 V threshold aligns with the target system voltage. Consider the 10 ms timeout against processor startup requirements. Evaluate thermal performance within the specified operating temperature range.

Supervisors Part Context

This device belongs to the MAX685x series of nanopower microprocessor supervisors. These circuits integrate voltage monitoring into a minimal five-pin form factor. The series targets applications where board space and quiescent current are critical constraints. The UK31D1+T designation indicates a specific threshold variant within the broader family.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: None identified.