MAX6313UK46D3-T

Supervisors Overview

The MAX6313UK46D3-T is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It features a factory-programmed reset threshold of 4.63V and monitors two inputs. The device provides an active-high, push-pull output with a manual reset input. It operates within a supply voltage range up to 5.5V and draws only 8µA of supply current. The reset delay time is specified at 200ms minimum. The component is housed in a compact SOT-23-5 package suitable for surface mount applications.

Supervisors Feature Summary

• Monitors multiple power supplies and asserts system reset if any monitored supply falls outside the programmed threshold
• Immune to fast transients on monitored supplies to prevent false resets
• Includes a manual reset input for external control
• Operates with low supply current suitable for portable applications

Supervisors Applications

• Portable computers
• Personal computer systems monitoring 5V and 3.3V rails
• Controllers and intelligent instruments
• Battery-powered equipment
• Multivoltage embedded control systems

Supervisors Procurement Notes

Verify the specific suffix D3 against official Analog Devices documentation to confirm the exact reset timeout delay and threshold configuration. Ensure the ordering part number matches the required active-high output type and manual reset functionality. Cross-reference the SOT-23-5 package dimensions with the mechanical drawing to confirm board layout compatibility. Confirm RoHS compliance status through the manufacturer's latest release notes.

Supervisors Selection Notes

Select this component when monitoring dual voltage rails such as 5V and 3.3V in space-constrained designs. The fixed 4.63V threshold suits applications requiring precise supervision of higher voltage lines. Choose over alternatives if an active-high push-pull output is mandatory rather than open-drain. Consider the 8µA quiescent current for battery life optimization. Verify that the 200ms reset delay meets the target system startup timing requirements.

Supervisors Part Context

This part belongs to the MAX6305–MAX6313 family of 5-pin, multiple-input programmable reset ICs from Maxim Integrated. The series is engineered for microprocessor supervision in portable and desktop environments. Variants within the family differ primarily in factory-set thresholds and output polarities while sharing the same small form factor and transient immunity characteristics.

Supervisors Replacement Considerations

Direct substitutes include other MAX63xx variants with matching active-high outputs and similar threshold voltages. Verify pinout compatibility before swapping. Generic supervisor ICs may lack the specific transient immunity or manual reset features documented for this series.