LM3880QMF-1AE/NOPB

Power Supply Controllers, Monitors Overview

The LM3880QMF-1AE/NOPB is an automotive-grade simple power sequencer designed for monitoring and sequencing three independent voltage rails. It operates within a supply voltage range of 2.7V to 5.5V with a typical supply current of 25 µA. The device features open-drain outputs and provides a fixed reset delay time of 2 ms. It includes a threshold voltage of 1.25 V and maintains an accuracy of 20%. The component is housed in a compact SOT-23-6 package, suitable for surface-mount installation, and supports an operating temperature range from -40°C to +125°C.

Power Supply Controllers, Monitors Feature Summary

• Provides automated sequencing for three monitored input rails without requiring manual reset or external timing components.
• Features low quiescent current consumption suitable for battery-powered or energy-efficient automotive applications.
• Includes built-in fixed delay functionality to ensure proper power-up and power-down sequences.

Power Supply Controllers, Monitors Applications

• Automotive electronic control units requiring reliable multi-rail power sequencing
• Embedded systems managing complex power domains with strict startup order requirements
• Industrial equipment utilizing multiple voltage supplies that need synchronized activation

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix '1AE' against the manufacturer's latest datasheet to confirm the exact reset delay characteristics, as different suffixes indicate varying timing parameters. Ensure the AEC-Q100 qualification status aligns with your project's automotive reliability standards. Confirm the SOT-23-6 footprint matches your PCB design constraints before finalizing procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component when a simple, cost-effective solution for three-rail sequencing is required in space-constrained designs. Consider the 2 ms delay parameter if precise timing alignment with other system events is critical. Evaluate the 20% accuracy specification against your voltage tolerance requirements. Compare against other LM3880 variants if different delay times or additional features like watchdog timers are needed.

Power Supply Controllers, Monitors Part Context

This part belongs to the LM3880 family of power supervisory circuits from Texas Instruments. It is specifically engineered for automotive environments, meeting rigorous quality and reliability standards. The device simplifies power management by integrating sequencing logic into a small form factor, reducing the need for discrete components and complex control circuitry in multi-voltage systems.

Power Supply Controllers, Monitors Replacement Considerations

Check for LM3880QMF-1AF/NOPB or LM3880QMFE-1AE/NOPB if different delay times are acceptable. Verify pinout compatibility and electrical specifications before substitution. Consult the official cross-reference guide for confirmed equivalents.