LM4050BEM3-4.1

Voltage Reference Overview

The LM4050BEM3-4.1 is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed reverse breakdown voltage of 4.096 V. It operates within an extended temperature range from -40°C to +125°C and utilizes a SOT-23 surface-mount package. The device guarantees an initial accuracy of ±0.2% at 25°C and maintains a maximum temperature coefficient of 50 ppm/°C across the operating range. It supports a wide operating current range from 73 μA to 15 mA with low dynamic impedance.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy
• Bandgap reference temperature drift curvature correction ensures stable performance over varying temperatures

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Precision audio components

Voltage Reference Procurement Notes

Verify that the specific part number matches the required B-grade tolerance and extended temperature rating. Confirm the package type corresponds to the DBZ (SOT-23) footprint. Ensure the ordering suffix aligns with the desired packaging format. Cross-reference the datasheet revision date to confirm the electrical characteristics match the design requirements.

Voltage Reference Selection Notes

Select this component when space-critical applications require a precise voltage reference in a small SOT-23 package. It is suitable for designs needing stability without output capacitors. Consider the minimum operating current of 73 μA for low-power circuits. Verify that the 4.096 V output meets the system's reference voltage needs.

Voltage Reference Part Context

This device belongs to the LM4050-N family of precision micropower shunt voltage references. The family offers multiple fixed reverse breakdown voltages including 2.048 V, 2.5 V, 5 V, 8.192 V, and 10 V. The LM4050-N series is designed for industrial and extended temperature ranges, providing reliable performance in various electronic systems.

Voltage Reference Replacement Considerations

LM4050AIM3X-4.1/NOPB

Voltage Reference FAQ

Does the LM4050BEM3-4.1 require an external capacitor?

No, the LM4050-N design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the initial accuracy grade for the LM4050BEM3-4.1?

The 'B' designation indicates an initial Reverse Breakdown Voltage tolerance of ±0.2% at 25°C.