LP3470IM5-3.08/NOPB

Supervisors Overview

The LP3470IM5-3.08/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring power supply integrity in electronic systems. It operates within a maximum supply voltage of 5.5 V and features a precise reset threshold of 3.08 V with 1% accuracy. The device utilizes an active-low, open-drain output configuration and provides a fixed reset delay time of 2 ms. It is housed in a compact SOT-23-5 surface-mount package and supports operation across a temperature range from -40°C to +85°C. The component draws a typical operating supply current of 16 µA, ensuring minimal power consumption during standby or normal operation.

Supervisors Feature Summary

• Provides precise voltage supervision with 1% reset threshold accuracy
• Features low quiescent current consumption for battery-powered applications
• Offers active-low open-drain output for flexible logic interfacing
• Includes programmable reset delay via external capacitor

Supervisors Applications

• Portable consumer electronics requiring low power monitoring
• Battery-operated devices needing reliable power-fail detection
• Embedded systems utilizing microcontrollers with strict voltage thresholds
• Industrial control units operating in extended temperature environments

Supervisors Procurement Notes

Verify the complete part number including the /NOPB suffix to ensure RoHS compliance and lead-free status. Confirm the specific threshold voltage variant matches the design requirement, as the LP3470 series offers multiple precision options. Check the latest datasheet for any updates regarding recommended replacement parts due to potential obsolescence notices within the product family.

Supervisors Selection Notes

Select this component when a fixed 3.08 V threshold is required with high precision. Ensure the application can accommodate the open-drain output structure and external pull-up resistor. Verify that the 2 ms internal delay meets system timing requirements or consider if external capacitance adjustment is necessary for longer delays. Confirm thermal performance within the specified -40°C to +85°C range.

Supervisors Part Context

This device belongs to the LP3470 family of tiny power-on-reset circuits. It is functionally compatible with the LP3470A series but may differ in specific manufacturing revisions or packaging details. The LP3470IM5 variant indicates industrial temperature grading compared to commercial versions. It serves as a dedicated supervisor for single-input voltage monitoring without manual reset or watchdog capabilities.

Supervisors Replacement Considerations

Direct substitutes include LP3470IM5-3.08 (non-NOPB version) and LP3470IM5X-3.08/NOPB. Alternative family members like LP3470A308DBVR offer similar functionality with different packaging. Verify pinout compatibility and electrical specifications before substitution.