MAX6861UK28+T

Supervisors Overview

The MAX6861UK28+T is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 2.8 V with an overvoltage threshold of 3.485 V. The device provides an active-low, push-pull reset output and supports manual reset functionality. It consumes a typical operating supply current of 7 uA and offers adjustable or selectable reset timeout durations. The component is designed for surface mount installation in SOT-23-5 packages and functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides active-low push-pull reset signaling for monitored power rails
• Supports manual reset input for system control flexibility
• Features low quiescent current consumption for battery efficiency
• Includes adjustable or selectable reset timeout duration options

Supervisors Applications

• Portable electronic devices requiring low-power supervision
• Microprocessor systems needing reliable power-on reset
• Battery-operated equipment with strict current constraints
• Embedded controllers requiring manual reset capability

Supervisors Procurement Notes

Verify the exact suffix and package variant against the official datasheet before procurement, as ordering codes define specific electrical parameters. Confirm availability status, as this part may be discontinued or subject to limited supply. Ensure compatibility with existing PCB footprints and thermal requirements. Cross-reference manufacturer documentation for any recent product change notices that might affect performance or compliance.

Supervisors Selection Notes

Select this component when a low-current, single-supervisor solution with manual reset is required. Compare threshold voltages and reset timeout options against system specifications. Evaluate package size constraints for SOT-23-5 integration. Consider alternative parts if higher channel counts or different output polarities are needed. Verify operating temperature range suitability for the intended environment.

Supervisors Part Context

This supervisor belongs to the MAX6861 series, designed for nanopower applications. It complements other Maxim Integrated monitoring solutions by offering configurable reset timing and low standby current. The series targets compact designs where space and power efficiency are critical. It integrates essential protection features without requiring external components, simplifying board layout and reducing overall system cost.

Supervisors Replacement Considerations

Check for direct pin-compatible substitutes within the MAX686x family. Verify equivalent threshold voltages and output configurations. Review datasheets for any functional differences in reset behavior or current consumption. Ensure replacement parts meet the same environmental and regulatory standards.