LP3470IM5-3.65/NOPB

Supervisors Overview

The LP3470IM5-3.65/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring single-input power rails. It operates within a supply voltage range up to 5.5 V and features a fixed reset threshold of 3.65 V with 1% accuracy. The device provides an active-low, open-drain output and includes a programmable reset delay time of 2 ms. It does not support manual reset, watchdog timers, or battery backup switching. The component is housed in a SOT-23-5 surface-mount package and is rated for operation between -40°C and 85°C.

Supervisors Feature Summary

• Provides active-low open-drain reset signaling for monitored power supplies
• Features a fixed 1% accurate reset threshold voltage
• Includes a programmable reset delay timer

Supervisors Applications

• Power-on reset generation for microprocessors and digital logic
• Voltage supervision for battery-powered systems
• Monitoring of single-rail power supplies in embedded controllers

Supervisors Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS status. Confirm the 'M5' designation corresponds to the SOT-23-5 package variant. Check current lifecycle status as some LP3470 variants are marked NRND. Ensure the 3.65 V threshold matches the target system voltage requirements before procurement.

Supervisors Selection Notes

Select this part when a fixed 3.65 V threshold is required for a single-channel power rail. The SOT-23-5 package suits space-constrained designs. Verify that the 2 ms reset delay meets system timing constraints. Consider alternatives if manual reset or watchdog functionality is needed, as this device lacks those features.

Supervisors Part Context

The LP3470 series comprises tiny power-on reset circuits from Texas Instruments. These devices monitor supply voltages and generate reset signals for digital systems. The IM5 suffix typically denotes industrial temperature range and specific packaging. The NOPB suffix confirms non-pb-free (lead-free) construction compliant with environmental standards.

Supervisors Replacement Considerations

Direct substitutes include other LP3470 variants with different thresholds such as LP3470IM5-3.08/NOPB or LP3470IM5-4.63/NOPB. Cross-family replacements like TPS389001DSER may offer additional features but require pinout and parameter verification.