TL431ACLPR

Overview

The TL431ACLPR is an adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a cathode voltage range of 2.5 V to 36 V and provides an initial accuracy of ±1%. The device features a maximum temperature coefficient of 92 ppm/°C and supports a maximum cathode current of 100 mA. It is housed in a TO-92-3 through-hole package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Provides stable adjustable voltage regulation via external resistor divider
• Ensures high precision with low initial output voltage tolerance
• Maintains consistent performance across specified industrial temperature ranges

Applications

• Precision power supply feedback loops
• Portable equipment voltage monitoring
• DC-to-DC converter control circuits

Procurement Notes

Verify the specific suffix 'ACLPR' against official Texas Instruments documentation to confirm the exact accuracy grade, package type, and tape-and-reel specifications. Ensure compatibility with required thermal and electrical constraints before finalizing procurement decisions.

Selection Notes

Select this component when a low-cost, high-accuracy adjustable reference is required for through-hole designs. Consider the ±1% initial accuracy and 92 ppm/°C temperature coefficient against application stability needs. Verify that the 100 mA cathode current capability meets the circuit's load requirements.

Part Context

This part belongs to the widely used TL431 family of programmable shunt regulators. It serves as a standard reference element in linear and switching power supplies. The TO-92 package facilitates easy integration into legacy and cost-sensitive printed circuit board layouts requiring through-hole mounting.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.