TL432QDBZR

Overview

The TL432QDBZR is an automotive-grade, three-terminal adjustable shunt regulator from Texas Instruments. It operates within a voltage range of 2.495 V to 36 V and features an initial accuracy of 0.5%. The device supports a maximum cathode current of 100 mA and maintains stability across a temperature range of -40°C to +125°C. It is housed in a SOT-23-3 package and complies with AEC-Q100 standards for automotive applications.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Adjustable output voltage capability via external resistors
• High thermal stability over extended industrial temperature ranges

Applications

• Automotive power supply regulation
• Battery management systems
• Precision voltage references in vehicle electronics

Procurement Notes

Verify the specific suffix 'Q' indicates automotive grade compliance. Confirm the package type matches the design requirements. Check for RoHS compliance status. Ensure the ordering quantity aligns with reel specifications. Validate the manufacturer part number against official TI documentation before procurement.

Selection Notes

Select this component for designs requiring automotive reliability and precision voltage referencing. Consider the 0.5% initial accuracy for tight tolerance circuits. Evaluate the 100 mA current capacity against load requirements. Ensure the SOT-23-3 footprint fits the PCB layout constraints.

Part Context

This device belongs to the TL432 family of adjustable shunt regulators. It shares functional similarities with the TL431 but utilizes a different pinout configuration suitable for compact surface-mount applications. The Q suffix denotes automotive grade qualification, distinguishing it from commercial variants.

Replacement Considerations

Direct substitutes include other AEC-Q100 qualified shunt regulators from Texas Instruments such as the TL432BQ or TL432LI series. Verify pin compatibility and electrical specifications when considering alternative manufacturers.