LM4040BIM7-4.1/NOPB

Overview

The LM4040BIM7-4.1/NOPB is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 4.096 V. It operates within an industrial temperature range of -40°C to +85°C and utilizes a sub-miniature SC-70 (SOT-323) surface-mount package. The device provides high accuracy with a B-grade initial tolerance of ±0.2% at 25°C and maintains stability across varying currents through bandgap curvature correction.

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
• Features low dynamic impedance and temperature drift curvature correction for stable performance

Applications

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

Procurement Notes

Verify the specific ordering suffix 'M7' corresponds to the SC-70 package variant rather than standard SOT-23. Confirm that the 'NOPB' designation indicates lead-free status and RoHS compliance as per the manufacturer's current documentation. Ensure the selected grade meets the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when space constraints require a sub-miniature SC-70 package instead of the larger SOT-23 or TO-92 options. Choose the B-grade version for applications requiring tighter initial voltage tolerances compared to C or D grades. Consider the minimum operating current requirements relative to the 4.1V output level to ensure proper biasing in the circuit design.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt voltage references. The family offers various fixed voltages including 2.048 V, 2.5 V, 3 V, 5 V, and 10 V. The LM4040-N series is designed for space-critical applications and is available in multiple package types including SOT-23, TO-92, and SC-70, with automotive-grade variants also available under the LM4040-N-Q1 designation.

Replacement Considerations

LM4040BIM3-4.1/NOPB

FAQ

Does the LM4040BIM7-4.1/NOPB require an external capacitor for stability?

No, the advanced design of the LM4040-N eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the maximum operating current for the LM4040BIM7-4.1/NOPB?

All versions in the LM4040-N series have a maximum operating current of 15 mA.