TLVH431BCLPR

Overview

The TLVH431BCLPR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 1.24 V to 18 V and features an initial accuracy of 0.5%. The device supports a maximum cathode current of 80 mA and maintains a temperature coefficient of 138 PPM/°C. It functions reliably across an operating temperature range from -40°C to +125°C. The component utilizes a TO-92-3 through-hole package and complies with RoHS standards.

Feature Summary

• Adjustable output voltage capability spanning from 1.24 V to 18 V via external resistor dividers
• High precision performance characterized by 0.5% initial accuracy tolerance
• Wide operational current range supporting sink currents up to 80 mA
• Extended thermal stability ensuring reliable function across industrial temperature extremes

Applications

• Battery-operated equipment requiring precise voltage monitoring
• Switch-mode power supplies utilizing feedback regulation
• Data acquisition systems needing stable reference voltages
• Portable devices where space-saving through-hole packaging is preferred

Procurement Notes

Verify the specific suffix CLPR corresponds to the desired reel or cut tape configuration as listed in official distributor catalogs. Confirm RoHS compliance status directly with Texas Instruments documentation for the exact manufacturing batch. Ensure the TO-92-3 through-hole package matches your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a through-hole solution is required for adjustable shunt regulation. The 0.5% accuracy class suits applications demanding tighter tolerances than standard 1% variants. Consider the 80 mA current limit for load driving capabilities. Verify that the 138 PPM/°C temperature coefficient meets the thermal drift specifications of the target circuit design.

Part Context

This part belongs to the TLVH431 family of low-voltage adjustable precision shunt regulators. The family includes various packages such as SOT-23 and SC-70, alongside the TO-92 variant. The 'B' designation indicates the 0.5% accuracy grade, distinguishing it from lower precision options within the same series.

Replacement Considerations

Direct substitutes include other TLVH431 variants with matching accuracy and package, such as TLVH431AILPR (1% accuracy) or TLVH431BILPR (0.5% accuracy). Cross-reference with TLVH431QLPR for identical TO-92-3 housing but verify if the 1.5% accuracy tier meets system requirements.