TL431IDRG4

Overview

The TL431IDRG4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates as a three-terminal voltage reference with an output voltage range of 2.495 V to 36 V. The device features an initial accuracy of 2% and a maximum temperature coefficient of 92 ppm/°C. It supports a maximum cathode current of 100 mA and withstands a maximum input voltage of 37 V. The component functions within a temperature range of -40 °C to +125 °C and is housed in an SOIC-8 surface-mount package.

Feature Summary

• Provides programmable output voltage from 2.495 V to 36 V
• Delivers high precision with 2% initial accuracy
• Operates reliably across extended industrial temperature ranges

Applications

• Precision power supply regulation
• Voltage reference circuits
• Comparator replacement applications

Procurement Notes

Verify the specific suffix 'IDRG4' against official Texas Instruments documentation to confirm the SOIC-8 tape-and-reel packaging and 2% accuracy grade. Ensure compatibility with required operating temperatures and lead-free specifications before procurement.

Selection Notes

Select this component when a stable, adjustable reference voltage is required in space-constrained designs. The SOIC-8 package facilitates automated surface-mount assembly. Verify that the 100 mA current capability meets the load requirements of the target circuit application.

Part Context

This part belongs to the TL431 family of adjustable shunt regulators. These devices are widely used for replacing Zener diodes in feedback loops due to superior stability and lower dynamic impedance characteristics compared to standard Zener references.

Replacement Considerations

Compatible substitutes include TL431IDR and TL431IDRE4, provided they match the SOIC-8 package and electrical specifications.