MAX6318LHUK29CY+T

Supervisors Overview

The MAX6318LHUK29CY+T is a microprocessor supervisory circuit from the MAX6316–MAX6322 family, manufactured by Analog Devices Inc. (Maxim Integrated). It monitors power supplies in digital systems and features a manual reset input. The device operates within a supply voltage range up to 5.5V and includes a fixed reset threshold of 2.9V. It utilizes a SOT-23-5 surface-mount package and supports active high or low push-pull outputs. The circuit ensures system stability with a reset delay time of 1.4ms and maintains accuracy within 1.5%. It functions reliably across an extended temperature range from -40°C to +125°C while consuming only 3µA of supply current.

Supervisors Feature Summary

• Integrates a manual reset input for user-initiated system control alongside automatic power supervision
• Provides factory-trimmed fixed reset threshold voltages to eliminate external resistor networks
• Features low quiescent current consumption suitable for portable and battery-powered applications
• Supports multiple output configurations including active high, active low, and push-pull modes

Supervisors Applications

• Monitoring power supplies in personal computer systems
• Supervising voltage rails in embedded digital systems
• Ensuring reliable startup sequences for microprocessors
• Protecting battery-operated devices from undervoltage conditions

Supervisors Procurement Notes

Verify the exact suffix codes against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Confirm RoHS compliance status as indicated in the specific product documentation. Check current production lifecycle status, as older Maxim Integrated parts may have limited availability or require alternative sourcing strategies. Ensure the selected variant matches the required operating temperature range and output type for your specific design constraints.

Supervisors Selection Notes

Select this component when a fixed threshold near 2.9V is required without external programming resistors. Consider the SOT-23-5 package size for space-constrained PCB layouts. Evaluate the 1.4ms reset delay against the target processor's startup requirements. Verify that the manual reset feature aligns with the system's user interface needs. Compare supply current consumption against other options if battery life is a critical design parameter.

Supervisors Part Context

This part belongs to the MAX6316–MAX6322 family of 5-pin μP supervisory circuits designed by Maxim Integrated. These devices are engineered to monitor power supplies and microprocessor activity in digital systems. The family offers various combinations of reset outputs and features like watchdog timers and manual resets. They provide multiple factory-trimmed threshold voltages ranging from 2.5V to 5V, ensuring precise supervision without external components.

Supervisors FAQ

Does the MAX6318LHUK29CY+T include a watchdog timer?

No, the MAX6318 variant does not include a watchdog timer; it provides power supply monitoring and manual reset functionality.

What is the reset delay time for this supervisory circuit?

The reset delay time is specified as 1.4 ms in the official datasheet.

Is the reset threshold voltage adjustable?

No, the reset threshold voltage is factory-trimmed and fixed at 2.9V for this specific part number.