TL431BIDR

Overview

The TL431BIDR 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 2.495 V to 36 V with an initial accuracy of ±0.5%. The device supports a maximum cathode current of 100 mA and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Provides stable adjustable reference voltage for precision circuit applications
• Ensures high accuracy through tight initial tolerance specifications
• Supports wide input voltage ranges for flexible power management designs

Applications

• Precision voltage references in power supply circuits
• Programmable linear regulators and switching converters
• Voltage monitoring and protection circuits

Procurement Notes

Verify the specific suffix 'IDR' against the manufacturer's official datasheet to confirm pinout compatibility and electrical characteristics. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the ordering part number with authorized distributors to avoid counterfeit products and ensure traceability.

Selection Notes

Select this component when precise voltage regulation is required in space-constrained designs. The SOIC-8 package offers a balance between thermal performance and board space. Consider the ±0.5% accuracy requirement and the operating temperature range to ensure suitability for the target environment.

Part Context

This device belongs to the TL431 family of programmable shunt regulators, widely used as a low-cost alternative to Zener diodes. It functions as a three-terminal integrated circuit that can be easily adjusted with external resistors to set output voltages between 2.5 V and 36 V, making it a standard solution in analog control loops.

Replacement Considerations

• TL431BIDRG4