MAX807LCWE+

Supervisors Overview

The MAX807LCWE+ is a full-featured uPower Supervisor manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.3V to 5.5V and features a reset threshold voltage of 4.425V with 1.5% accuracy. The device includes a manual reset input, a watchdog timer, and a battery backup switch. It provides active high and active low outputs with a reset delay time of 280ms. Operating current is 70uA, and it functions between -40°C and +85°C in a 16-SOIC package.

Supervisors Feature Summary

• Integrates a watchdog timer for system fault recovery
• Includes a manual reset input for controlled initialization
• Features a battery backup switch for power transition management

Supervisors Applications

• Portable equipment requiring low power supervision
• Battery-powered systems needing backup switching
• Microprocessor reset circuits

Supervisors Procurement Notes

Verify the specific suffix 'C' indicates commercial temperature range (-40°C to +85°C) and 'WE' denotes the SOIC-Wide-16 package. Confirm RoHS compliance status through official documentation. Check for obsolescence notices as Maxim products may have lifecycle changes. Ensure pinout compatibility with existing PCB layouts before procurement.

Supervisors Selection Notes

Select this component when precise 1.5% reset accuracy is required for critical logic levels. The integrated watchdog and manual reset simplify circuit design compared to discrete solutions. Consider the 70uA quiescent current for battery life optimization. Verify that the 4.425V threshold aligns with the monitored rail's nominal voltage.

Supervisors Part Context

Part of the MAX807M/L/N series of supervisory circuits. The LCWE variant specifically targets commercial temperature applications with wide-body packaging for ease of assembly. It complements other Maxim PMICs by providing robust power monitoring without complex configuration requirements.

Supervisors Replacement Considerations

MAX807MCUE+ offers similar functionality in TSSOP-16. MAX807NEWE+ provides industrial temperature range in SOIC-Wide-16. Verify threshold voltages and package dimensions match before substitution.