LP3470M5-4.00/NOPB

Supervisors Overview

The LP3470M5-4.00/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed to monitor power supply integrity in electronic systems. It features an active-low open-drain output that asserts when the monitored input voltage drops below a precise 4.00 V threshold. The device operates within a maximum supply voltage of 5.5 V and includes a programmable reset delay time of 2 ms, adjustable via an external capacitor. It functions reliably across a temperature range of -20°C to +85°C and is housed in a compact SOT-23-5 surface-mount package.

Supervisors Feature Summary

• Provides precise voltage monitoring with a fixed 1% accuracy reset threshold
• Features an active-low open-drain output for direct interface with digital logic
• Allows user-defined reset timeout duration through external capacitor connection

Supervisors Applications

• Microprocessor system power-on reset generation
• Battery-powered equipment voltage supervision
• Embedded controller brown-out protection

Supervisors Procurement Notes

Verify component authenticity against official Texas Instruments documentation due to the NRND status. Confirm the specific 4.00 V threshold requirement matches design specifications. Ensure compatibility with the SOT-23-5 footprint during procurement planning. Check for updated lifecycle notices regarding availability constraints.

Supervisors Selection Notes

Select this component when a fixed 4.00 V threshold is required without external resistor programming. The SOT-23-5 package suits space-constrained designs. Consider the 2 ms minimum delay characteristic for timing-sensitive applications. Verify that the active-low output polarity aligns with the target microcontroller reset pin requirements.

Supervisors Part Context

This part belongs to the LP3470 family of ultra-low-power voltage supervisors from Texas Instruments. The series offers various fixed threshold voltages to accommodate different rail monitoring needs. The M5 suffix indicates the commercial temperature grade and SOT-23-5 packaging configuration.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.