TLVH431BCLP

Overview

The TLVH431BCLPR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of up to 20 V and provides an adjustable output voltage from 1.24 V to 18 V. The device features an initial accuracy of 0.5% and a temperature coefficient of 138 PPM/C. It supports a maximum cathode current of 80 mA with a minimum operating current of 80 µA. The component functions reliably across a temperature range of -40°C to +125°C and is housed in a TO-92-3 through-hole package.

Feature Summary

• Adjustable output voltage capability ranging from 1.24 V to 18 V via external resistor divider
• High precision performance with 0.5% initial accuracy tolerance
• Wide thermal stability ensuring reliable operation across extended industrial temperature ranges

Applications

• Battery-operated equipment requiring low power consumption
• Switch mode power supplies for voltage regulation
• Data acquisition systems needing stable reference voltages
• Battery chargers utilizing precise shunt regulation

Procurement Notes

Verify the specific suffix CLPR confirms the TO-92-3 through-hole package variant, as other suffixes indicate different form factors like SOT-23 or SC-70. Confirm RoHS compliance status directly with the manufacturer datasheet prior to integration. Check for any recent Product Change Notifications regarding material composition or assembly source changes that may affect long-term availability or qualification.

Selection Notes

Select this component when a through-hole mounting solution is required for low-voltage precision applications. Ensure the design accommodates the 80 µA minimum cathode current requirement for proper regulation. Compare against surface-mount alternatives if board space is constrained, noting that package selection does not alter electrical characteristics but affects mechanical integration.

Part Context

This part belongs to the TLVH431B series of low-voltage adjustable shunt regulators. It serves as a precision reference element similar to standard Zener diodes but with significantly lower dynamic impedance and higher accuracy. The series is designed for power management ICs where space-saving and low current operation are critical design parameters.

Replacement Considerations

Direct pin-compatible replacements include other TLVH431 variants with different packages such as TLVH431BCDBVTE4 (SOT-23-5) or TLVH431BIDCKR (SC-70-6). Verify that substitute parts maintain the same 0.5% accuracy class and 80 mA current rating to ensure circuit functionality remains unchanged.