MAX6855UK39D5+T

Supervisors Overview

The MAX6855UK39D5+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 factory-trimmed reset threshold of 3.9 V. The device utilizes an SOT-23-5 surface-mount package and provides an active-low, open-drain reset output. It includes a manual reset input for system control but does not incorporate a watchdog timer or battery backup switch. The component supports a reset delay time of 450 ms and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates voltage monitoring with manual reset functionality in a compact five-pin package
• Provides active-low open-drain reset signal assertion upon undervoltage conditions
• Features ultra-low quiescent current consumption for efficient power management

Supervisors Applications

• Microprocessor (µP) supervisory circuits requiring low-power operation
• Portable battery-powered electronic devices
• Industrial control systems operating in harsh environments

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to limited availability status. Confirm RoHS compliance and specific lot codes against datasheet requirements. Check for obsolescence notices as this part may be subject to discontinuation. Ensure proper handling procedures for ESD-sensitive components during storage and assembly processes.

Supervisors Selection Notes

Select this component when a single-channel supervisor with manual reset capability is required. Consider the 3.9 V threshold against system rail voltages. Evaluate the open-drain output compatibility with downstream logic levels. Compare against MAX6856 variants if active-high outputs are preferred instead.

Supervisors Part Context

This device belongs to the MAX6854/MAX6855 series of nanopower µP supervisory circuits. These devices combine voltage monitoring, watchdog timer, and manual reset inputs in a small SOT23 package. The MAX6855 specifically offers push-pull or open-drain outputs depending on the suffix, distinguishing it from other family members with different output configurations or integrated watchdog timers.

Supervisors Replacement Considerations

MAX6855UK39D1+T: Alternative with different reset timeout characteristics. MAX6856UK39D5+T: Similar function but with active-high push-pull output configuration.