TL4050A25QDBZR

Overview

The TL4050A25QDBZR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.1%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 50 ppm/°C. It supports a maximum cathode current of 15 mA and draws a quiescent current of 65 µA. The component is housed in a SOT-23-3 package and meets AEC-Q100 automotive qualification standards.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in vehicle electronics.
• High precision voltage regulation with ±0.1% initial accuracy and low noise characteristics.
• Micropower operation designed for energy-efficient applications with minimal quiescent current consumption.

Applications

• Automotive sensor signal conditioning
• Data acquisition systems requiring stable reference voltages
• Portable battery-powered instrumentation

Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and qualification level. Confirm that the SOT-23-3 package matches your PCB footprint requirements. Check for specific automotive grade certifications if deploying in safety-critical systems. Ensure supply chain sources provide genuine Texas Instruments components to maintain specified electrical performance and reliability standards.

Selection Notes

Select this component when a stable 2.5 V reference is required in space-constrained designs. The SOT-23-3 package offers a compact solution for surface-mount assembly. Consider the 50 ppm/°C temperature coefficient for thermal stability needs. The 15 mA load capability supports moderate current demands without external buffering in many standard configurations.

Part Context

This device belongs to the TL4050 family of precision shunt voltage references from Texas Instruments. The family includes various output voltages and accuracy grades tailored for different application requirements. The 'Q' designation indicates automotive qualification, while 'A' specifies the precision grade. These references are commonly used in power management integrated circuits and analog signal processing chains.

Replacement Considerations

Compatible substitutes include other TL4050 series variants with matching voltage and accuracy, such as TL4050A25IDCKR or TL4050A25QDBZT. Verify pin compatibility and package dimensions before substitution. Ensure alternative parts meet the same AEC-Q100 automotive qualification requirements if applicable to the original design intent.