TL4050B25QDBZRQ1

Overview

The TL4050B25QDBZRQ1 is an automotive catalog precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.2%. 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 shunt current of 15 mA and consumes a cathode current of 90 µA. The component is housed in a SOT-23-3 package and meets AEC-Q100 qualification standards for automotive applications.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• High precision with ±0.2% initial accuracy
• Micropower operation suitable for space-constrained designs

Applications

• Automotive data acquisition systems
• Precision analog-to-digital converter references
• Battery management system monitoring

Procurement Notes

Verify the complete part number including suffixes to ensure correct voltage, accuracy, and packaging specifications. Confirm AEC-Q100 compliance requirements match the target application. Check for specific RoHS status and moisture sensitivity levels prior to ordering. Ensure supply chain sources provide valid traceability documentation for automotive components.

Selection Notes

Select this component when high accuracy and low power consumption are required in automotive environments. The SOT-23-3 package offers a compact footprint for dense circuit layouts. Consider the 50 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 15 mA maximum shunt current against load requirements.

Part Context

This device belongs to the TL4050 series of precision micropower shunt voltage references from Texas Instruments. The series includes various output voltages and accuracy grades tailored for different industrial and automotive needs. The QDBZRQ1 designation indicates automotive qualification, reel packaging, and specific performance binning.

Replacement Considerations

Compatible substitutes include other AEC-Q100 qualified shunt references such as the TL4041 or TL431 variants, provided they meet the 2.5 V output and ±0.2% accuracy requirements. Verify pinout compatibility and thermal characteristics before substitution.