LM810M3-4.63/NOPB

Supervisors Overview

The LM810M3-4.63/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for supply monitoring applications. It features an active-high, push-pull reset output and operates within a supply voltage range of up to 5.5 V. The device monitors a single input with a fixed threshold voltage of 4.63 V and includes an overvoltage threshold of 4.7 V. It provides a reset delay time of 840 ms and consumes a low operating supply current of 18 uA. The component supports operation across a temperature range from -40°C to +105°C and is housed in a compact SOT-23-3 package.

Supervisors Feature Summary

• Features an active-high, push-pull reset output for direct interface with digital logic systems
• Provides precise voltage supervision with a fixed 4.63 V threshold and dedicated overvoltage detection at 4.7 V
• Operates with ultra-low power consumption of 18 uA to extend battery life in portable devices
• Includes a defined 840 ms reset delay to ensure stable system initialization

Supervisors Applications

• Microprocessor system hardware monitoring
• Battery-powered equipment power management
• Portable electronic device supply supervision

Supervisors Procurement Notes

Verify the exact suffix configuration against official datasheets to confirm pinout and electrical characteristics. Ensure compatibility with existing PCB footprints for the SOT-23-3 package. Confirm that the fixed 4.63 V threshold meets specific circuit requirements. Check for end-of-life status or recommended alternatives if long-term availability is critical. Validate thermal performance within the specified operating temperature range.

Supervisors Selection Notes

Select this component when a fixed threshold voltage supervisor is required without external resistor networks. The push-pull output eliminates the need for pull-up resistors, simplifying design. Consider the 18 uA quiescent current for energy-sensitive applications. Verify that the 840 ms delay aligns with system startup timing constraints. Ensure the 5.5 V maximum supply voltage accommodates peak input conditions.

Supervisors Part Context

The LM810 series comprises voltage supervisory circuits designed for monitoring power supplies in embedded systems. This specific variant offers a fixed threshold, distinguishing it from adjustable counterparts. It belongs to Texas Instruments' portfolio of power management ICs focused on system reliability. The NOPB suffix indicates lead-free construction compliant with RoHS standards.

Supervisors Replacement Considerations

Public documentation identifies LM810M3-4.63/NOPB as the alternate part number for LM810M3-463.