MAX719CSE

Overview

The MAX719CSE is a voltage supervisor manufactured by Analog Devices Inc./Maxim Integrated, designed to monitor power supply voltages and generate reset signals. It operates within a supply voltage range of 2.0V to 5.5V and features a threshold voltage of 2.93V with 2.5% accuracy. The device provides an active-low push-pull output and includes a fixed 280ms reset delay time. It consumes a typical operating current of 65uA and supports input voltages up to 5.5V. The component is housed in an SOIC-8 package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Monitors single power supply input for under-voltage conditions
• Generates active-low reset signal upon power failure detection
• Includes fixed reset delay timer for stable power-up sequencing
• Operates with low quiescent current consumption

Applications

• Embedded system power management
• Microcontroller circuit supervision
• Portable electronic device power monitoring
• Industrial control system reset generation

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature grade (-40°C to +85°C) as per official documentation. Confirm the 'SESA+' variant availability if lead-free compliance is required. Ensure the SOIC-8 package matches the target PCB footprint. Cross-reference the manufacturer's latest datasheet for any pinout revisions or updated electrical specifications before finalizing procurement.

Selection Notes

Select this component when a single-channel voltage supervisor with a fixed 2.93V threshold is required. Consider the 280ms reset delay duration against system startup timing requirements. Evaluate the 65uA operating current against battery life constraints. Verify that the SOIC-8 package dimensions fit the available board space and thermal dissipation needs for the intended application environment.

Part Context

The MAX719CSE belongs to the MAX709S series of supervisory circuits from Analog Devices/Maxim Integrated. This family focuses on providing reliable power-fail detection and reset generation for digital systems. The part integrates essential monitoring functions into a compact surface-mount package, serving as a critical component for ensuring system stability during power transitions.

Replacement Considerations

Check for direct cross-reference models within the MAX709 series offering identical threshold voltages and package types. Verify compatibility of reset delay times and output drive capabilities with existing circuit designs. Ensure replacement parts maintain the same operating temperature range and supply voltage limits.