TLVH431CLPRE3

Overview

The TLVH431CLPRE3 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input 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 1.5% and a typical average 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 is housed in a TO-92-3 through-hole package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Adjustable output voltage capability ranging from 1.24 V to 18 V via external resistor divider
• Low operating current consumption suitable for power-restricted designs
• High precision with guaranteed temperature stability over the full operating range
• Robust sink current capability supporting demanding load conditions

Applications

• Battery chargers
• Switch mode power supplies
• Battery operated equipment
• Data acquisition systems
• Energy management circuits

Procurement Notes

Verify the specific suffix 'E3' indicates lead-free compliance and RoHS status during procurement. Confirm the TO-92-3 through-hole package availability matches assembly requirements. Check for any product discontinuance notifications or lifecycle changes associated with this specific part number variant before finalizing orders.

Selection Notes

Select this component when a low-voltage, high-precision shunt reference is required in a through-hole configuration. The 1.5% initial accuracy and 138 PPM/°C temperature coefficient suit applications needing stable reference voltages without complex compensation. Ensure the 80 mA sink current meets the circuit's dynamic load demands.

Part Context

This part belongs to the TLVH431 series of low-voltage adjustable shunt regulators. It serves as a modern alternative to traditional TL431 devices, offering improved performance at lower supply voltages. The series is designed for space-saving surface mount and through-hole applications requiring precise voltage referencing in compact electronic systems.

Replacement Considerations

Publicly confirmed substitute part numbers include TLVH431BCLPR and TLVH431AQLPR. Verify pinout compatibility and electrical parameter alignment, such as accuracy and temperature coefficient, before substituting.