LM4040C50IDBZT

Overview

The LM4040C50IDBZT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5V with an initial accuracy tolerance of ±0.5%. The device operates within an ambient temperature range of -40°C to 85°C and features a maximum temperature coefficient of 100ppm/°C. It requires a minimum cathode current of 95µA for regulation and supports a maximum operating current of 15mA. The component is housed in a space-saving SOT-23-3 surface-mount package.

Feature Summary

• Maintains stable output voltage across wide operating currents and temperatures due to low dynamic impedance and low noise characteristics.
• Operates without external capacitors and remains stable with all capacitive loads, simplifying circuit design.
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to achieve tight output tolerances.

Applications

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

Procurement Notes

Verify the specific suffix 'DBZT' corresponds to the SOT-23-3 package and tape-and-reel shipping configuration. Confirm that the 'I' grade designation aligns with the required industrial temperature range of -40°C to 85°C for your application environment. Ensure compatibility with RoHS3 standards if environmental compliance is mandatory for your manufacturing process.

Selection Notes

Select this component when a fixed 5V reference with ±0.5% accuracy is required in a compact SOT-23-3 footprint. It is suitable for applications needing low power consumption with a minimum operating current of 95µA. Consider the 100ppm/°C temperature coefficient for stability requirements within the industrial temperature range.

Part Context

This part belongs to the LM4040 series of precision micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and grades (A, B, C, D) with different accuracy and temperature coefficient specifications. The LM4040C50IDBZT specifically represents the C-grade variant with 5V output and industrial temperature rating.

Replacement Considerations

LM4040C50IDBZR is the reel version of the same component. LM4040C50QDBZT is the extended temperature (-40°C to 125°C) equivalent in the same package.