LM810M3-4.63

Supervisors Overview

The LM810M3-4.63 is a voltage supervisory circuit manufactured by Texas Instruments, designed for supply monitoring applications. It features an active-high, push-pull reset output and monitors a single input channel with a fixed threshold voltage of 4.63 V. The device operates within a maximum supply voltage of 5.5 V and draws a typical quiescent current of 18 uA. It provides a reset delay time of 840 ms and lacks manual reset or watchdog timer functions. The component is housed in a SOT-23-3 package and supports operation across a temperature range from -40°C to +105°C.

Supervisors Feature Summary

• Provides active-high, push-pull reset signaling for reliable power supply supervision
• Features low quiescent current consumption suitable for battery-powered systems
• Includes fixed threshold detection without requiring external components

Supervisors Applications

• Microprocessor system power-on reset generation
• Battery-operated equipment voltage monitoring
• Portable electronic device power management

Supervisors Procurement Notes

Verify the specific suffix designation against official documentation to confirm exact electrical characteristics and pinout compatibility. Confirm availability status as distribution channels may list obsolete or non-recommended-for-new-design (NRND) parts. Ensure the selected variant matches the required operating temperature range and package type for your specific application design constraints.

Supervisors Selection Notes

Select this component when a fixed threshold supervisor with push-pull output is required. Consider the 4.63 V threshold relative to the target supply rail. Evaluate the 840 ms reset delay against system startup timing requirements. Verify that the SOT-23-3 package fits the PCB layout constraints and that the 18 uA quiescent current meets power budget specifications.

Supervisors Part Context

This part belongs to the LM810 series of voltage supervisors from Texas Instruments. These devices are designed to monitor power supply voltages and generate reset signals for digital logic circuits. The series typically offers various threshold options and output configurations to suit different system architectures and reliability standards.

Supervisors Replacement Considerations

Official documentation indicates LM810M3-4.63/NOPB as an alternate option. Verify lead-free compliance and any minor parameter variations between the original and alternate designations before substitution.