TLVH431NACDBZR-QVL

Overview

The TLVH431NACDBZR-QVL is a three-terminal adjustable precision shunt regulator from the Nexperia TLVH431N-Q family. It operates within a cathode-anode voltage range of Vref to 14 V and supports a sink current capability between 0.08 mA and 70 mA. The device features an A-Grade reference voltage tolerance of 1.0%, with a typical reference voltage of 1240 mV at 25 °C. It utilizes a SOT23 (TO-236AB) surface-mounted package with normal pinning configuration.

Feature Summary

• Programmable output voltage adjustable up to 14 V using two external resistors
• A-Grade reference voltage tolerance of 1.0% for high precision applications
• Low output noise characteristics with a typical dynamic impedance of 0.1 Ω
• Qualified according to AEC-Q100 Grade 1 standards for automotive reliability

Applications

• Shunt regulator circuits
• Precision current limiter designs
• Precision constant current sink implementations
• Isolated feedback loops for Switch Mode Power Supplies

Procurement Notes

Verify the specific suffix QVL against official Nexperia documentation to confirm manufacturing site or tape-and-reel specifications, as datasheets may list standard DBZR endings. Confirm that the component meets AEC-Q100 Grade 1 requirements for your intended automotive application environment. Ensure thermal management aligns with the specified junction-to-ambient resistance values on FR4 PCBs.

Selection Notes

Select this component when precise voltage referencing is required in space-constrained designs utilizing the SOT23 package. The A-Grade 1.0% tolerance makes it suitable for applications demanding tighter accuracy than the standard 1.5% grade. Consider the mirrored versus normal pinning options if board layout compatibility with existing footprints is a constraint.

Part Context

This part belongs to the TLVH431N-Q family of adjustable precision shunt regulators designed by Nexperia. The family includes variants with different temperature ranges and reference voltage tolerances. These devices serve as active replacements for Zener diodes in various regulation and control applications, offering superior stability and lower output impedance compared to passive alternatives.

Replacement Considerations

Standard TLVH431NACDBZR-Q is the base equivalent without the specific QVL suffix variation. Verify pinning configuration matches the circuit design, as the family offers both normal and mirrored pinning options in the SOT23 package.