LM4040CIM3-5.0

Overview

The LM4040CIM3-5.0 is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed reverse breakdown voltage of 5 V. It operates within an industrial temperature range from -40°C to +85°C and utilizes a SOT-23 surface-mount package. The device provides an initial accuracy tolerance of ±0.5% at 25°C with a maximum temperature coefficient of 100 ppm/°C. Recommended operating conditions specify a minimum reverse current of 74 μA and a maximum of 15 mA.

Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes bandgap reference temperature drift curvature correction and low dynamic impedance for stable performance
• Employs fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy

Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process controls
• Automotive applications

Procurement Notes

Verify that the ordering suffix 'CIM3' corresponds to the specific C-grade tolerance (±0.5%) and SOT-23 package configuration required for your design. Confirm the presence of the '/NOPB' designation if lead-free compliance is mandatory for your manufacturing process. Ensure the selected variant matches the intended industrial temperature range specifications.

Selection Notes

Select this component when space-critical designs require a sub-miniature surface-mount voltage reference. The LM4040-N series is suitable for applications needing fixed reverse breakdown voltages without external stabilization components. Consider the specific grade requirements for initial accuracy and temperature coefficient based on the system's precision needs.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt voltage references. The family includes various fixed voltage options such as 2.048 V, 2.5 V, 3 V, 4.096 V, 8.192 V, and 10 V. Available packages include SOT-23, TO-92, and SC70, catering to different size and mounting constraints in electronic circuits.

Replacement Considerations

LM4040CEM3-5.0/NOPB

FAQ

Does the LM4040CIM3-5.0 require an output capacitor?

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

What is the minimum operating current for the 5-V version?

The recommended operating conditions specify a minimum reverse current of 74 μA for the LM4040-N-5.0 version.