LM810M3X-4.00/NOPB

Supervisors Overview

The LM810M3X-4.00/NOPB is a single-channel power supply support circuit manufactured by Texas Instruments, functioning as a fixed voltage supervisor. It monitors a single input line and provides an active-high, push-pull reset signal when the supply voltage drops below the specified threshold of 4.00 V. The device operates within a supply voltage range up to 5.5 V and features a typical reset delay time of 280 ms. Designed for surface-mount applications, it utilizes a compact SOT-23-3 package. The component supports an operating temperature range from -40°C to +105°C, ensuring reliability in industrial environments.

Supervisors Feature Summary

• Provides a fixed threshold voltage supervision function for monitoring single power rails
• Generates an active-high reset signal using a push-pull output stage
• Operates with low quiescent current suitable for battery-powered systems
• Includes internal reset delay timer to prevent false triggering during power-up

Supervisors Applications

• Microprocessor system hardware monitoring
• Battery-operated electronic devices requiring voltage supervision
• Industrial control systems with wide temperature requirements
• Portable equipment power management circuits

Supervisors Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free status and RoHS compliance according to Texas Instruments documentation. Confirm the exact threshold voltage marking matches the 4.00 V specification required for your design. Ensure the SOT-23-3 footprint aligns with your PCB layout guidelines. Check for any recent lifecycle notices or obsolescence warnings directly from the manufacturer before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 4.00 V supervision threshold is required with an active-high output. Consider the SOT-23-3 package size constraints and the -40°C to +105°C operating temperature range. Evaluate if the push-pull output capability meets the drive requirements of the downstream logic. Compare against adjustable supervisors if flexibility in threshold selection is needed instead of a fixed value.

Supervisors Part Context

This part belongs to the LM810 series of voltage supervisors from Texas Instruments. The series offers various fixed threshold options packaged in small outline transistor packages. These components are designed for simple, cost-effective power monitoring solutions in embedded systems. The LM810 family provides reliable reset generation without requiring external timing capacitors due to internal delay circuits.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers for LM810M3X-4.00/NOPB were not found in the provided reference material.