LP3470M5-2.93

Supervisors Overview

The LP3470M5-2.93 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 threshold of 2.93 V. The device incorporates a fixed reset delay time of 2 ms to prevent false triggering during transient events. It operates within a maximum supply voltage of 5.5 V and maintains a quiescent current of 16 uA. The component provides a reset accuracy of 1% and functions reliably across an extended temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides precise voltage monitoring with a 1% reset threshold accuracy for reliable system supervision.
• Features an active-low open-drain output configuration compatible with standard digital logic interfaces.
• Includes a fixed 2 ms reset delay timer to ensure stable operation during power-up and brown-out conditions.

Supervisors Applications

• Portable battery-powered devices requiring low quiescent current consumption
• Microcontroller and processor power supply supervision
• Embedded systems needing reliable voltage monitoring in compact SOT-23-5 packages

Supervisors Procurement Notes

Verify the specific suffix and RoHS status against the manufacturer's latest documentation, as availability may vary. Confirm the exact threshold voltage matches the design requirement of 2.93 V. Check for any obsolescence notices or recommended new designations (NRND) before finalizing procurement plans. Ensure compatibility with the target operating temperature range of -40°C to +85°C.

Supervisors Selection Notes

Select this component when a fixed 2.93 V threshold is required for single-input voltage monitoring. Consider the 16 uA quiescent current for battery-sensitive applications. The SOT-23-5 package suits space-constrained designs. Verify that the active-low open-drain output aligns with the downstream logic requirements without additional pull-up components if not already present in the circuit design.

Supervisors Part Context

This part belongs to the LP3470 series of tiny power-on-reset circuits from Texas Instruments. The series offers various fixed threshold voltages to accommodate different rail monitoring needs. The LP3470M5 variant specifically denotes the industrial temperature grade and SOT-23-5 packaging. It serves as a fundamental building block for ensuring system stability in consumer electronics and industrial control applications.

Supervisors Replacement Considerations

Direct substitutes include other LP3470 variants with identical pinouts but different threshold voltages, such as LP3470M5-3.08/NOPB or LP3470IM5-2.93/NOPB, provided the threshold voltage matches the application requirement. Cross-reference with LP3470A series parts only if higher voltage tolerance or different delay characteristics are acceptable.

Supervisors FAQ

What is the reset delay time for the LP3470M5-2.93?

The LP3470M5-2.93 has a fixed reset delay time of 2 ms.

Does the LP3470M5-2.93 have a manual reset input?

No, the LP3470M5-2.93 does not feature a manual reset input; it relies solely on voltage monitoring.

What is the maximum supply voltage for this device?

The maximum supply voltage for the LP3470M5-2.93 is 5.5 V.