MAX6855UK19D5+T

Supervisors Overview

The MAX6855UK19D5+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 of up to 5.5 V and features a factory-trimmed reset threshold of 1.9 V. The device utilizes an SOT-23-5 surface-mount package and provides an active high, push-pull output. Key electrical parameters include a maximum operating temperature of +85 °C, a minimum of -40 °C, and a quiescent current of 7 µA. The reset delay time is specified at 900 ms, with no integrated watchdog timer or manual reset input functionality.

Supervisors Feature Summary

• Integrates voltage monitoring with a manual reset input function in a compact five-pin SOT-23 package
• Asserts a reset signal when monitored voltage drops below the factory-trimmed threshold or upon manual assertion
• Maintains reset output for a minimum timeout period after voltage recovery and manual deassertion

Supervisors Applications

• Microprocessor (µP) system supervision
• Battery-powered portable equipment monitoring
• Consumer electronics power management

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm RoHS compliance status and specific lot traceability requirements prior to procurement. Ensure that the ordering suffix corresponds exactly to the required threshold voltage and packaging configuration. Cross-reference datasheet revisions to confirm pinout and electrical characteristics match design specifications.

Supervisors Selection Notes

Select this component for applications requiring low standby current and precise voltage monitoring without watchdog timer complexity. Verify that the 1.9 V threshold aligns with the target supply rail tolerance. Consider the SOT-23-5 footprint for space-constrained designs. Ensure the active high output logic level matches the receiving microcontroller or logic interface requirements.

Supervisors Part Context

The MAX6855 belongs to the MAX6854/MAX6855/MAX6856/MAX6858/MAX6860–MAX6869 family of nanopower µP supervisory circuits. These devices combine voltage monitoring, watchdog timer, and manual reset functions. The MAX6855 specifically denotes the variant with manual reset capability but without a watchdog timer, distinguishing it from other members of the series like the MAX6854 or MAX6856.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.