TL4050C50QDBZRQ1

Overview

The TL4050C50QDBZRQ1 is an automotive-grade precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5 V with an initial accuracy of ±0.5% and a temperature coefficient of 50 ppm/°C. The device operates within a junction temperature range of -40°C to +125°C and features a maximum shunt current of 15 mA. It consumes a typical cathode current of 90 µA and exhibits a noise level of 93 µVrms in the 10 Hz to 10 kHz bandwidth. Packaged in a compact SOT-23-3 surface-mount case, it meets AEC-Q100 qualification standards for automotive applications.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in vehicle environments.
• Micropower operation with low cathode current consumption suitable for battery-powered systems.
• High precision stability with tight initial accuracy and controlled temperature drift characteristics.

Applications

• Analog-to-digital converter (ADC) reference sources in automotive data acquisition systems
• Precision measurement circuits requiring stable voltage references under varying thermal conditions
• Battery management system monitoring and control interfaces

Procurement Notes

Verify that the component designation includes the Q1 suffix to confirm AEC-Q100 automotive qualification status. Ensure the package marking corresponds to the DBZR variant for the SOT-23-3 form factor. Confirm RoHS compliance and manufacturing origin details through the official datasheet or manufacturer documentation prior to integration into production designs.

Selection Notes

Select this component when a fixed 5 V reference with ±0.5% accuracy is required for automotive applications. It is suitable for designs prioritizing low power consumption alongside high precision. Consider the SOT-23-3 footprint for space-constrained PCB layouts. Evaluate the 50 ppm/°C temperature coefficient against the specific thermal operating environment requirements of the target application.

Part Context

This part belongs to the TL4050-Q1 family of precision micropower shunt voltage references from Texas Instruments. The series offers various output voltages and accuracy grades tailored for automotive electronics. The C50 designation specifically indicates the 5 V output version with 0.5% initial tolerance. These devices are designed to replace older generation references while offering improved performance metrics in a miniature package.

Replacement Considerations

Direct substitutes include other TL4050-Q1 variants with different output voltages or accuracy grades, such as TL4050B50QDBZRQ1 for higher precision. Non-TI equivalents require careful verification of pinout compatibility, thermal characteristics, and automotive qualification status.