LM4040C50ILPE3

Overview

The LM4040C50ILPE3 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5V with an initial accuracy of 0.5% and a temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions across an ambient temperature range of -40°C to 85°C. Packaged in the LP (TO-92) format, it features low dynamic impedance and wideband noise characteristics suitable for stable reference applications.

Feature Summary

• Provides a fixed 5V output with tight tolerance and low temperature drift
• Operates stably with all capacitive loads without requiring external compensation capacitors
• Features low dynamic impedance and low noise for precise signal conditioning
• Designed for portable applications due to micropower consumption requirements

Applications

• Data-acquisition systems
• Energy infrastructure monitoring
• Analog input modules
• Field transmitters
• Precision audio circuits

Procurement Notes

Verify the specific package type and suffix against official documentation before procurement. Confirm that the 'I' suffix corresponds to the industrial temperature range (-40°C to 85°C). Ensure compatibility with existing circuit layouts designed for TO-92 packages. Check for any recent product change notifications regarding manufacturing sources or materials.

Selection Notes

Select this component when a fixed 5V reference with 0.5% accuracy is required in a through-hole package. It is suitable for designs needing stability across varying capacitive loads without additional components. Consider the 45μA minimum operating current for low-power battery applications. Verify that the 100ppm/°C temperature coefficient meets the system's thermal stability requirements.

Part Context

This part belongs to the LM4040 series of shunt voltage references from Texas Instruments. The series offers various fixed output voltages and grades (A, B, C, D) with different accuracy levels. The LM4040C50ILPE3 specifically represents the C-grade version with 0.5% accuracy in the TO-92 package, targeting industrial temperature ranges.

Replacement Considerations

LM4040C50I/NOPB