LM4128AQ1MF4.1/NOPB

Voltage Reference Overview

The LM4128AQ1MF4.1/NOPB is an automotive-grade precision series voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 4.096 V with an initial accuracy of 0.1%. The device operates within a supply voltage range up to 6 V and draws a maximum shunt current of 20 mA. It features a temperature coefficient of 100 ppm/°C and functions reliably across a junction temperature range of -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount case, it meets AEC-Q100 qualification standards for automotive applications.

Voltage Reference Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• High precision with 0.1% initial accuracy tolerance
• Low power consumption suitable for battery-operated systems

Voltage Reference Applications

• Automotive data acquisition systems
• Precision analog-to-digital converter references
• Battery-powered instrumentation

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as NOPB and MF4.1 to ensure correct voltage and package configuration. Confirm AEC-Q100 certification requirements match specific automotive quality standards. Check datasheet revisions for any pinout or thermal characteristic updates before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this component when high accuracy and low drift are required in space-constrained automotive designs. The SOT-23-5 package offers a small footprint compared to larger reference packages. Ensure input voltage remains within the specified maximum limit to maintain regulation stability and prevent excessive power dissipation during operation.

Voltage Reference Part Context

This part belongs to the LM4128 family of micropower series voltage references. The 'A' designation indicates automotive qualification, while 'Q1' denotes the specific grade level. The 'MF' prefix identifies the SOT-23-5 surface-mount package type. This variant is distinct from other output voltages like 2.048V or 3.3V within the same series.

Voltage Reference Replacement Considerations

LM4128DQ1MF4.1/NOPB (1% accuracy)

Voltage Reference FAQ

What is the maximum input voltage for this device?

The maximum series reference input voltage is 6 V.

Is this component qualified for automotive use?

Yes, it is qualified according to the AEC-Q100 standard.