TLVH431NAMQDBZR-VL

Overview

The TLVH431NAMQDBZR-VL is an A-Grade 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 a reference voltage tolerance of 1.0% at 25 °C, with a typical value of 1240 mV. It utilizes a SOT23 package with mirrored pinning configuration (Pin 1: Cathode, Pin 2: Reference, Pin 3: Anode). Qualified according to AEC-Q100 Grade 1, it functions reliably across an ambient temperature range of -40 °C to +125 °C.

Feature Summary

• AEC-Q100 Grade 1 qualified for automotive applications
• Mirrored pinning configuration in SOT23 package
• Low output noise with typical dynamic impedance of 0.1 Ω
• Programmable output voltage up to 14 V using external resistors

Applications

• Shunt regulator circuits
• Precision constant current sinks
• Isolated feedback loops for Switch Mode Power Supplies
• Precision current limiters

Procurement Notes

Verify the specific suffix 'VL' against official Nexperia documentation, as standard datasheets list 'QR'. Confirm the mirrored pinout matches the design requirements. Ensure the application circuit maintains stability over the specified -40 °C to +125 °C temperature range and validates load capacitance boundaries.

Selection Notes

Select this component when an A-Grade 1.0% reference tolerance is required alongside mirrored pinning compatibility. It serves as a direct replacement for standard TL431 devices where automotive qualification and low noise performance are critical. Verify that the 70 mA maximum sink current meets the load requirements.

Part Context

This part belongs to the TLVH431N-Q family of three-terminal shunt regulators designed for automotive and industrial use. The family includes variants with normal or mirrored pinning and different temperature grades. The NAMQ variant specifically denotes the A-Grade accuracy and mirrored pin configuration within the SOT23 footprint.

Replacement Considerations

Standard TL431 equivalents require verification of pinout differences due to the mirrored configuration. Ensure substitute components support the -40 °C to +125 °C operating range and meet AEC-Q100 requirements if used in automotive contexts.