TL4050C50QDCKT

Overview

The TL4050C50QDCKT is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 50ppm/°C. It supports a maximum shunt current of 15mA and draws a typical cathode current of 90µA. The component is housed in a compact SC-70-5 surface-mount package.

Feature Summary

• Micropower operation with low quiescent current consumption suitable for battery-powered systems
• High precision performance with tight initial accuracy tolerance
• Wide operating temperature range ensuring stability in harsh environments
• Compact SC-70-5 package design for space-constrained applications

Applications

• Portable instrumentation requiring stable reference voltages
• Battery-operated measurement devices
• Data acquisition systems needing precise analog references
• Automotive electronic control units

Procurement Notes

Verify the specific suffix QDCKT to confirm the automotive-grade qualification and SC-70-5 packaging configuration. Confirm availability status as distribution channels may list this part as discontinued or limited stock. Ensure compatibility with existing PCB footprints designed for the 5-pin SOT-353 outline. Cross-reference datasheet revisions to validate electrical characteristics against current production batches.

Selection Notes

Select this component when a 5V reference with ±0.5% accuracy is required in a small footprint. Consider the 50ppm/°C temperature coefficient for thermal stability needs. Evaluate the 90µA cathode current against system power budgets. Compare noise specifications if low-noise requirements exist, noting the 93µVrms value in the 10Hz-to-1kHz band.

Part Context

This part belongs to the TL4050 family of precision micropower shunt voltage references from Texas Instruments. The 'C' designation indicates the ±0.5% accuracy grade, while '50' specifies the 5V output voltage. The 'Q' prefix denotes automotive qualification, and 'DCK' identifies the SC-70-5 package type. This series offers a balance of precision, low power, and small size for various industrial and automotive applications.

Replacement Considerations

LM4040BIM7-5.0/NOPB is listed as a similar alternative. Verify pinout compatibility and electrical parameter alignment before substitution. Check if the replacement meets the same automotive qualification standards if required by the application.