TLVH431QDCKR

Overview

The TLVH431QDCKRG4 is a low-voltage adjustable precision shunt regulator from Texas Instruments, housed in a SC-70-6 surface-mount package. It provides an adjustable output voltage range of 1.24 V to 18 V with an initial accuracy of ±1.5%. The device supports a maximum cathode current of 70 mA and operates within a supply voltage range up to 20 V. It functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Adjustable reference voltage capability spanning from 1.24 V to 18 V for flexible circuit design
• High initial accuracy of ±1.5% ensures precise voltage regulation performance
• Wide operating current range supporting up to 70 mA cathode current
• Extended industrial temperature operation from -40°C to +125°C

Applications

• Battery-powered equipment requiring precise voltage monitoring
• Portable devices needing compact power management solutions
• Industrial control systems utilizing programmable thresholds
• Communication equipment requiring stable reference voltages

Procurement Notes

Verify the complete part number including suffixes such as RG4 or E4, as these indicate specific packaging or environmental compliance variations that do not alter electrical function but affect physical handling. Confirm RoHS status and moisture sensitivity level requirements against your manufacturing process specifications before ordering.

Selection Notes

Select this component when a low-voltage, high-accuracy shunt regulator is required in a small SC-70-6 footprint. Ensure the application voltage does not exceed the 20 V maximum input rating. Consider the 70 mA current limit for load driving capabilities and verify thermal performance within the specified -40°C to +125°C operating range.

Part Context

This part belongs to the TLVH431 family of low-voltage adjustable precision shunt regulators. It serves as a modern alternative to traditional Zener diodes, offering superior accuracy and stability. The Q-grade designation indicates automotive qualification standards, making it suitable for demanding environments compared to standard commercial grade variants.

Replacement Considerations

Compatible substitutes include TLVH431IDCKR and TLVH431QDCKRE4. Verify pinout compatibility and electrical parameter alignment, specifically the 1.5% accuracy and 70 mA current limits, before implementing any cross-references.