LM3880QMFE-1AC/NOPB

Power Supply Controllers, Monitors Overview

The LM3880QMFE-1AC/NOPB is an automotive-grade power supply sequencer manufactured by Texas Instruments. It operates within a supply voltage range of 2.7V to 5.5V and consumes a typical supply current of 25 µA. The device monitors three input rails and features fixed time delays for sequencing outputs. It is housed in a SOT-23-6 surface-mount package and supports an operating temperature range from -40°C to +125°C. The component holds AEC-Q100 qualification for automotive applications.

Power Supply Controllers, Monitors Feature Summary

• Monitors up to three independent power supply rails simultaneously
• Generates output signals with fixed internal time delays for sequential power-up
• Provides open collector/drain outputs compatible with various logic levels
• Certified to AEC-Q100 standards for automotive reliability

Power Supply Controllers, Monitors Applications

• Automotive infotainment system power management
• Engine control unit (ECU) power sequencing
• Multi-rail power distribution units in vehicles
• ADAS module power initialization

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix '1AC' against the official Texas Instruments datasheet to confirm the exact delay configuration and pinout. Ensure the ordering part number matches the required automotive grade and package type. Cross-reference the manufacturer's latest documentation for any design changes or obsolescence notices before finalizing procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing systems requiring automated sequencing of multiple voltage rails without microcontroller intervention. It is suitable for space-constrained designs due to the compact SOT-23-6 package. Consider the fixed delay characteristics to ensure they align with the target power supplies' ramp-up times. Verify that the 25 µA quiescent current meets the system's standby power requirements.

Power Supply Controllers, Monitors Part Context

This part belongs to the LM3880 family of simple power sequencers designed for monitoring and controlling power rails. The LM3880 series provides a low-cost alternative to complex programmable controllers. The 'Q' designation indicates automotive qualification, while 'NOPB' signifies lead-free and RoHS compliance. It serves as a dedicated hardware solution for ensuring safe power-up sequences in critical electronic systems.

Power Supply Controllers, Monitors Replacement Considerations

Check for direct substitutes within the LM3880 family, such as LM3880QMFE-1AB/NOPB or LM3880QMFE-1AA/NOPB, which may offer different delay configurations. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Consult the manufacturer's cross-reference guide for validated alternatives.