TLVH431AQDBVRQ1

Overview

The TLVH431AQDBVRQ1 is an automotive-grade adjustable precision shunt voltage reference from the TLVH431A series, manufactured by Texas Instruments. It operates within a supply voltage range of up to 20 V and provides an adjustable output voltage up to 18 V. The device features an initial accuracy of 1% and a temperature coefficient of 161 PPM/°C. It supports a maximum cathode current of 80 mA and functions reliably across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount case, it meets AEC-Q100 qualification standards for automotive applications.

Feature Summary

• Automotive-grade reliability with AEC-Q100 qualification for robust performance in vehicle environments.
• Adjustable output voltage capability allowing flexible integration into various circuit designs.
• High initial accuracy ensures precise voltage regulation without requiring extensive external calibration.

Applications

• Automotive power management systems
• Precision voltage referencing in automotive electronics
• Battery management circuits

Procurement Notes

Verify the complete part number including suffixes to ensure correct package and temperature grade alignment with design requirements. Confirm AEC-Q100 compliance documentation is available for quality assurance processes. Check official datasheets for specific handling and storage conditions related to moisture sensitivity levels. Ensure compatibility with existing PCB footprints for the SOT-23-5 package before finalizing procurement decisions.

Selection Notes

Select this component when automotive certification and high accuracy are required for low-voltage shunt regulation. Compare against standard TL431 variants if higher input voltage tolerance or different package options like SOT-23-3 are needed. Consider the 161 PPM/°C temperature coefficient against stricter thermal stability requirements that might necessitate lower drift alternatives.

Part Context

This device belongs to the TLVH431A family of low-voltage adjustable shunt regulators designed specifically for automotive applications. It complements other Texas Instruments references like the TL431AQDBZRQ1 but offers distinct packaging and electrical characteristics tailored for space-constrained automotive modules.

Replacement Considerations

The TLVH431BQDBVRQ1 serves as a verified alternative within the same family, offering improved 0.5% initial accuracy while maintaining similar operational parameters and automotive qualifications.