MAX6309UK27D1-T

Supervisors Overview

The MAX6309UK27D1-T is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It features a manual reset input and an active low push-pull output. The device asserts a system reset if any monitored supply falls outside the programmed threshold, specifically monitoring 5V and 3.3V inputs. Key electrical parameters include a maximum supply voltage of 5.5V, a reset delay time of 1.4ms, and an operating supply current of 8µA. It operates within a temperature range of 0°C to +70°C and is housed in a SOT-23-5 package.

Supervisors Feature Summary

• Monitors more than one power supply for system integrity
• Includes a manual reset input for user control
• Asserts system reset when monitored supplies exceed programmed thresholds
• Designed to ignore fast transients on monitored supplies

Supervisors Applications

• Monitoring 5V and 3.3V supplies in personal computer systems
• Portable applications requiring low supply current
• Microprocessor supervisory circuits

Supervisors Procurement Notes

Verify the exact suffix against official documentation, as availability varies by region. Confirm RoHS compliance status and lead-free specifications directly with the manufacturer or authorized distributors. Ensure the specific part number matches the required threshold voltage and package type before ordering.

Supervisors Selection Notes

Select this component for designs requiring dual-supervision of standard logic voltages. The fixed 2.7V threshold suits specific rail monitoring needs. Consider the 8µA quiescent current for battery-powered constraints. Verify that the SOT-23-5 footprint fits the PCB layout and that the 1.4ms reset delay meets timing requirements.

Supervisors Part Context

Part of the MAX6305–MAX6313 family of 5-pin, multiple-input programmable reset ICs from Analog Devices/Maxim Integrated. These devices are optimized for portable applications due to their small package size and low power consumption. The series offers factory-programmed thresholds ranging from 2.5V to 5.0V.

Supervisors Replacement Considerations

Check for direct substitutes within the MAX6305–MAX6313 series with compatible threshold voltages and pinouts. Verify functional equivalence regarding reset delay and output configuration.