TL4050A50QDBZR

Overview

The TL4050A50QDBZR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5 V with an initial accuracy of 0.1% and a temperature coefficient of 50 PPM/C. The device operates within a junction temperature range of -40°C to +125°C and supports a maximum cathode current of 15 mA. It is housed in a surface-mount SOT-23-3 package and holds AEC-Q100 qualification for automotive applications.

Feature Summary

• Automotive-grade reliability certified under the AEC-Q100 standard for robust performance in demanding environments.
• High initial accuracy of 0.1% ensures precise voltage regulation without requiring external trimming.
• Micropower architecture maintains low quiescent current, optimizing efficiency in battery-powered systems.

Applications

• Data acquisition systems requiring stable reference voltages
• Portable instrumentation and handheld measurement devices
• Automotive electronic control units (ECUs)
• Battery-operated equipment with space constraints

Procurement Notes

Verify that the part number suffix QDBZR corresponds to the specific AEC-Q100 qualified automotive grade variant. Confirm the SOT-23-3 package type matches the design footprint. Ensure the 5 V output voltage aligns with system requirements. Check for RoHS compliance status before integration into regulated assemblies.

Selection Notes

Select this component when high precision and automotive certification are required in a compact form factor. The 0.1% accuracy suits applications needing tight tolerance without calibration. The SOT-23-3 package minimizes board space compared to larger alternatives. Consider the 50 PPM/C temperature coefficient for thermal stability needs across the industrial temperature range.

Part Context

This device belongs to the TL4050 series of precision shunt voltage references from Texas Instruments. The series offers various accuracy grades and output voltages tailored for different power management needs. The TL4050A50QDBZR specifically targets automotive applications due to its qualification status and reliable performance characteristics.

FAQ

Is the TL4050A50QDBZR suitable for high-voltage applications?

No, it is designed as a low-voltage shunt reference with a fixed 5 V output, not intended for high-voltage regulation tasks.

What is the maximum current capability of this reference?

The device supports a maximum cathode current of 15 mA, which defines its load driving capacity in shunt configurations.