LM4128BQ1MF1.8/NOPB

Voltage Reference Overview

The LM4128BQ1MF1.8/NOPB is an automotive-grade precision micropower series voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.8 V with an initial accuracy of 0.1%. The device operates within a supply voltage range up to 6 V and draws a typical quiescent current of 60 uA. It features a temperature coefficient of 75 ppm/°C and supports a maximum shunt current of 20 mA. The component is qualified to AEC-Q100 standards for automotive applications and functions reliably across an extended temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliable operation in vehicle environments
• High precision performance characterized by 0.1% initial accuracy and low temperature drift
• Micropower architecture enabling ultra-low quiescent current consumption for battery-sensitive designs

Voltage Reference Applications

• Automotive sensor signal conditioning circuits requiring stable reference voltages
• Data acquisition systems utilizing analog-to-digital converters in automotive modules
• Battery management systems needing precise voltage monitoring references

Voltage Reference Procurement Notes

Verify the complete part number including the suffix to ensure correct output voltage and tolerance specifications. Confirm AEC-Q100 qualification status is required for your specific automotive application tier. Check package availability as SOT-23-5 variants may have different reel quantities. Ensure compatibility with your system's input voltage constraints not exceeding the maximum rated limit.

Voltage Reference Selection Notes

Select this component when high precision and automotive reliability are prioritized over minimal cost. The 0.1% accuracy suits applications demanding tight voltage tolerances without external trimming. Consider the 60 uA quiescent current for power-constrained designs. Compare against non-automotive grades if environmental robustness is not required for the target deployment scenario.

Voltage Reference Part Context

This device belongs to the LM4128 family of precision voltage references, specifically engineered for automotive electronics. The 'Q1' designation indicates compliance with automotive quality and reliability standards. It serves as a critical reference element in mixed-signal circuits where stability under varying thermal conditions is essential for maintaining system accuracy and performance integrity.

Voltage Reference Replacement Considerations

LM4128AQ1MF1.8/NOPB offers similar automotive qualification with potentially different initial accuracy grades.