MAX6307UK27D2-T

Supervisors Overview

The MAX6307UK27D2-T is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It features a 5-pin SOT-23 package and operates with a supply voltage range of 1V to 5.5V. The device monitors two inputs, providing an active-low, open-drain reset output. Key electrical parameters include an operating supply current of 8µA, a reset delay time of 1.4ms, and specific overvoltage and undervoltage thresholds. It lacks manual reset and watchdog timer functions.

Supervisors Feature Summary

• Monitors more than one power supply for system integrity
• Immune to short VCC transients on monitored lines
• Guaranteed RESET valid down to VCC = 1V
• Requires no external components for operation

Supervisors Applications

• Portable computers
• Controllers
• Intelligent instruments
• Multivoltage systems (e.g., 3V/5V, 5V/12V)
• Embedded control systems

Supervisors Procurement Notes

Verify the exact threshold voltage configuration associated with the UK27 suffix against the official Maxim Integrated datasheet revision. Confirm that the D2 suffix correctly indicates the dual-input monitoring capability required for the design. Ensure the -T suffix matches the tape-and-reel packaging specification needed for automated assembly processes.

Supervisors Selection Notes

Select this component when simultaneous monitoring of two distinct voltage rails is necessary within a compact footprint. The low 8µA supply current makes it suitable for battery-powered applications where power conservation is critical. Verify that the 1.4ms reset timeout meets the timing requirements of the target microprocessor or logic family.

Supervisors Part Context

This part belongs to the MAX6305–MAX6313 family of 5-pin, multiple-input, programmable reset ICs. These devices are specifically engineered for personal computer systems and portable electronics requiring supervision of both 5V and 3.3V rails. The family offers factory-set reset thresholds in 0.1V increments from 2.5V to 5V.

Supervisors Replacement Considerations

Cross-reference with other MAX6307 variants such as MAX6307UK28D2-T or MAX6307UK45D2-T if different threshold voltages are required. Ensure any substitute maintains the same SOT-23-5 package and dual-input monitoring architecture.