LM810M3-4.00/NOPB

Supervisors Overview

The LM810M3-4.00/NOPB is a voltage supervisory integrated circuit manufactured by Texas Instruments, designed to monitor a single power supply input. It features a fixed threshold voltage of 4.00 V and utilizes an SOT-23-3 surface-mount package. The device provides an active low, push-pull output signal with a reset delay time of 240 ms. It operates within a maximum supply voltage of 5.5 V and supports a wide operating temperature range from -40°C to +105°C, ensuring reliable performance in demanding environments.

Supervisors Feature Summary

• Monitors a single voltage input for under-voltage conditions
• Provides active low push-pull reset output signal
• Includes a fixed 240 ms reset delay timer

Supervisors Applications

• Portable equipment power management
• Battery-powered systems supervision
• Microprocessor reset circuits

Supervisors Procurement Notes

This component is officially marked as obsolete and no longer manufactured by Texas Instruments. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or approved secondary market sources. Buyers must confirm that the parts are new and unused, as availability is limited. Cross-referencing datasheets for potential replacement candidates is recommended before finalizing any acquisition plans.

Supervisors Selection Notes

Engineers selecting this part should note its discontinued status and evaluate alternative supervisors with similar threshold voltages and package types. Considerations include matching the 4.00 V threshold, push-pull output configuration, and the specific 240 ms delay requirement. Verify that substitute components meet the same -40°C to +105°C operating temperature range and SOT-23-3 footprint constraints for seamless integration.

Supervisors Part Context

The LM810 series belongs to Texas Instruments' family of compact power management ICs focused on voltage supervision. These devices are engineered for applications requiring precise monitoring of power rails in space-constrained designs. The LM810M3 variant specifically targets single-input monitoring needs, offering a balance of accuracy and simplicity for protecting sensitive electronics from unstable power conditions.

Supervisors Replacement Considerations

Analog Devices ADM810JARTZ-REEL7 is listed as an available substitute for this obsolete component.