TL431CDRE4

Overview

The TL431CDRE4 is an adjustable precision shunt regulator manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It operates within a voltage range of 2.495 V to 36 V with a maximum cathode current of 100 mA. The device features an initial accuracy of ±2.2% and a temperature coefficient of 92 ppm/°C. It supports a wide operating temperature range from -40°C to +125°C and complies with RoHS standards.

Feature Summary

• Provides adjustable reference voltage functionality for precise circuit regulation
• Offers high initial accuracy for stable performance across varying conditions
• Supports wide operating temperature ranges suitable for industrial applications

Applications

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

Procurement Notes

Verify the component status as the TL431CDRE4 may be subject to discontinuation or obsolescence notices. Confirm availability through authorized distributors and check for valid replacement alternatives if production is halted. Ensure compliance with current environmental regulations such as RoHS before procurement.

Selection Notes

Select this component when an adjustable shunt regulator with ±2.2% accuracy is required in an SOIC-8 package. Consider the 92 ppm/°C temperature coefficient and 100 mA current capability against application needs. Verify that the -40°C to +125°C operating range meets environmental specifications.

Part Context

This part belongs to the TL431 family of programmable parallel regulators. It serves as a direct pin-compatible replacement for standard TL431 variants while offering specific tolerance and packaging characteristics defined by the RE4 suffix. It is categorized under PMIC voltage references.

Replacement Considerations

Direct substitutes include TL431CDR and TL431CDRG4. Verify functional equivalence regarding accuracy and thermal performance before substitution.