TL431ILPRE3

Overview

The TL431ILPRE3 is an adjustable shunt voltage reference IC manufactured by Texas Instruments. It operates within a cathode voltage range of 2.495 V to 36 V and supports a maximum cathode current of 100 mA. The device features an initial accuracy of ±2.2% and a maximum temperature coefficient of 92 ppm/°C. Designed for automotive applications, it functions reliably between -40°C and +85°C. The component is housed in a TO-92-3 through-hole package.

Feature Summary

• Provides stable adjustable voltage reference with high precision
• Automotive-grade qualification for reliable operation
• Capable of handling up to 100 mA cathode current

Applications

• Automotive power supply regulation circuits
• Precision voltage monitoring systems
• Battery management system references

Procurement Notes

Verify the specific suffix 'E3' confirms RoHS compliance and lead-free construction as per manufacturer specifications. Confirm the automotive grade designation matches project requirements. Check for any recent Product Change Notices regarding material or assembly updates that may affect compatibility.

Selection Notes

Select this component when automotive reliability and precise voltage referencing are required in through-hole designs. Ensure the circuit design accommodates the 100 mA current limit and the specified temperature coefficient. Verify that the TO-92-3 package fits the available board space and mounting constraints.

Part Context

This part belongs to the TL431 family of programmable shunt regulators. It serves as a versatile reference element in linear and switching power supplies. The ILP variant specifically targets automotive environments, offering enhanced stability compared to standard industrial grades.

Replacement Considerations

TL431ILPR is listed as a manufacturer-recommended alternative.