TL431ACPWR

Overview

The TL431ACPWR is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates with a reference voltage range of 2.495V to 36V and supports a maximum cathode current of 100mA. The device features an initial accuracy of 1% and a maximum temperature coefficient of 92ppm/°C. It functions within a temperature range of 0°C to 70°C and utilizes a TSSOP-8 surface-mount package.

Feature Summary

• Provides stable, adjustable reference voltage for precision circuit applications
• Offers high accuracy with low temperature drift characteristics
• Supports wide input voltage ranges for flexible power management designs

Applications

• Precision voltage references in power supply circuits
• On-line isolation amplifiers
• Programmable output controllers

Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-8 package configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal management aligns with the specified operating temperature range during design validation.

Selection Notes

Select this component for applications requiring precise voltage regulation in compact surface-mount layouts. Compare against TO-92 or SOT-23 variants if leaded or smaller packages are preferred. Validate that the 1% accuracy meets system tolerance requirements before finalizing the bill of materials.

Part Context

This part belongs to the TL431 family of programmable shunt regulators widely used in industrial and consumer electronics. It serves as a cost-effective alternative to Zener diodes, offering superior stability and lower dynamic impedance. The TSSOP-8 variant facilitates automated assembly processes.

Replacement Considerations

Direct substitutes include TL431ACDR and TL431ACDBVR. Verify pin compatibility and package dimensions before substitution. Cross-reference electrical specifications to ensure equivalent performance in the target application.