TL4050B25QDCKT

Overview

The TL4050B25QDCKT is an automotive-grade 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 features a temperature coefficient of 50 PPM/°C and supports a maximum shunt current of 15 mA. It operates within a temperature range of -40°C to +125°C and is housed in a SC-70-5 surface-mount package. The component holds AEC-Q100 qualification for automotive applications.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific suffix QDCKT against official Texas Instruments documentation to confirm the SC-70-5 package and reel packaging configuration. Ensure the part number matches the required AEC-Q100 automotive qualification status. Cross-reference the datasheet for any recent product change notifications or pinout updates before finalizing procurement specifications.

Selection Notes

Select this component when a fixed 2.5 V reference with high accuracy is required in automotive environments. The SC-70-5 package offers a compact footprint for dense PCB layouts. Consider the 15 mA maximum shunt current limit when designing biasing networks. Verify that the 50 PPM/°C temperature coefficient meets the system's thermal stability requirements across the full operating temperature range.

Part Context

This device belongs to the TL4050 family of precision shunt voltage references designed for low-power applications. The 'B' designation indicates the 0.2% accuracy grade, while '25' specifies the 2.5 V output voltage. The 'Q' prefix denotes automotive qualification, and 'DCK' identifies the SC-70-5 package type. This series integrates bandgap reference technology optimized for stability and low noise.