TLVH431NQDBZRVL

Overview

The TLVH431NQDBZRVL is a three-terminal adjustable precision shunt regulator from the Nexperia TLVH431N family, housed in an SOT23 plastic surface-mounted package. It features normal pinning configuration and operates within an ambient temperature range of -40 °C to +125 °C. The device offers an A-Grade reference voltage tolerance of 1.0%, with a nominal Vref of 1240 mV at 25 °C. Output voltage is programmable up to 14 V using two external resistors. Key electrical parameters include a cathode current range of 0.08 mA to 70 mA, typical output impedance of 0.1 Ω, and low reference current variation.

Feature Summary

• Programmable output voltage adjustable between approximately 1.24 V and 14 V via external resistors
• A-Grade reference voltage tolerance of 1.0% for enhanced precision applications
• Low output noise characteristics with typical dynamic cathode-anode impedance of 0.1 Ω
• Wide operating temperature range suitable for demanding industrial environments

Applications

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

Procurement Notes

Verify that the specific suffix VL corresponds to the standard commercial grade specifications documented in the TLVH431N datasheet. Confirm the ordering code matches the A-Grade variant with 1.0% tolerance and normal pinning configuration. Ensure the component meets the required thermal stability for the -40 °C to +125 °C operating range specified for the NQ series.

Selection Notes

Select this component when precise voltage referencing is required across wide temperature variations. The A-Grade 1.0% tolerance ensures tighter accuracy compared to standard grades. Verify compatibility with the SOT23 footprint and normal pinout (REF-K-A). Consider the 0.08 mA to 70 mA sink current capability for load requirements.

Part Context

This part belongs to the TLVH431N family of adjustable precision shunt regulators manufactured by Nexperia. The family includes variants with different tolerances and temperature ranges. The NQ suffix indicates the extended temperature grade (-40 °C to +125 °C) and A-Grade tolerance. The device serves as a robust alternative to Zener diodes in regulation and feedback applications.

Replacement Considerations

Direct substitutes within the same family include TLVH431NAIDBZR for automotive-grade equivalents or TLVH431NCDBZR for commercial-grade alternatives with similar functionality but potentially different tolerance or temperature specifications.