TL431CDBZR,215

Overview

The TL431CDBZR,215 is a precision programmable shunt voltage reference manufactured by Nexperia. It functions as a high-performance alternative to Zener diodes, offering superior accuracy and temperature stability. The device integrates a 2.5V internal reference with an error amplifier and output transistor. Key electrical specifications include a typical initial accuracy of 0.5% at 25°C and a dynamic impedance of 0.2 ohms. It operates within a cathode current range of 1 mA to 100 mA and maintains regulation over a wide temperature range from -40°C to +85°C.

Feature Summary

• Provides precise programmable shunt regulation for stable voltage references
• Integrates a 2.5V internal reference source with low drift characteristics
• Features low dynamic impedance for improved noise performance
• Offers thermal compensation across extended industrial temperature ranges

Applications

• Precision power supply feedback loops
• Battery chargers requiring accurate voltage thresholds
• Voltage monitoring circuits in portable devices
• Linear regulator reference stages

Procurement Notes

Verify the specific suffix '215' corresponds to the requested tape-and-reel packaging configuration on official Nexperia documentation. Confirm that the 'C' grade designation aligns with the required initial accuracy tolerance for your design. Ensure compatibility with standard SOT-23 footprint dimensions during PCB layout finalization.

Selection Notes

Select this component when designing circuits requiring tighter voltage tolerance than standard Zener diodes provide. Consider the low dynamic impedance for applications sensitive to noise in the feedback path. Evaluate the operating current range to ensure it meets the minimum bias requirements of your specific load conditions without exceeding maximum ratings.

Part Context

This device belongs to the TL431 family of programmable shunt regulators widely used in analog electronics. It serves as a foundational component for creating stable reference voltages in switching and linear power architectures. The DBZ package denotes a compact surface-mount form factor suitable for space-constrained consumer and industrial electronic assemblies.

Replacement Considerations

Direct pin-compatible substitutes include the TL431AIDBZR for tighter initial accuracy or the TL431BIDBZR for different tolerance grades. Verify that any replacement maintains the same SOT-23 package outline and electrical characteristics to ensure seamless integration into existing designs.