TL431AIDR

Overview

The TL431AIDR is an adjustable precision shunt regulator manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It provides a reference voltage range from 2.495V to 36V with an initial accuracy of ±1%. The device supports a maximum output current of 100 mA and operates within a temperature range of -40°C to 85°C.

Feature Summary

• Adjustable shunt regulation capability for precise voltage control
• High initial accuracy tolerance for stable reference performance
• Surface-mount packaging optimized for automated assembly processes

Applications

• Precision voltage reference circuits
• Programmable linear power supplies
• Comparator buffer stages

Procurement Notes

Verify the specific suffix 'AIDR' against official Texas Instruments documentation to confirm the ±1% accuracy grade and SOIC-8 package variant. Ensure compatibility with RoHS3 standards and check for any recent Product Change Notifications regarding manufacturing site or material composition updates before finalizing procurement.

Selection Notes

Select this component when high accuracy is required compared to standard variants. Consider the thermal operating range limits and ensure the circuit design accommodates the minimum cathode current requirements for stable regulation during operation under varying load conditions.

Part Context

This part belongs to the TL431 family of adjustable shunt regulators, widely used as voltage references. The 'A' designation indicates tighter accuracy specifications, while 'IDR' specifies the industrial temperature range and tape-and-reel packaging format suitable for high-volume surface-mount production lines.

Replacement Considerations

LM431BIM/NOPB is a documented substitute option available from Texas Instruments.