TS431ARIX-Z RFG

Overview

The TS431ARIX-Z RFG is a programmable shunt voltage reference manufactured by Taiwan Semiconductor Corporation. It operates within an input voltage range of 2.5V to 36V and provides an adjustable output voltage from 2.495V to 36V. The device features a typical initial accuracy of ±1% and supports a maximum cathode current of 100mA. It functions with a reference voltage of approximately 2.495V and maintains operation across a temperature range of -40°C to +85°C.

Feature Summary

• Provides precise, adjustable voltage referencing via external resistor divider
• Ensures stable regulation through low dynamic impedance characteristics
• Offers high common-mode rejection ratio for noise immunity

Applications

• Precision power supply regulation circuits
• Portable equipment battery monitoring systems
• DC/DC converter feedback loops

Procurement Notes

Verify the specific suffix 'RFG' against official Taiwan Semiconductor documentation to confirm tape and reel packaging specifications. Ensure the component matches the required automotive or industrial grade standards if applicable. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and avoid counterfeit components during sourcing.

Selection Notes

Select this component when a low-cost, high-accuracy shunt reference is required for linear regulator designs. Consider its 100mA current capability and ±1% tolerance for applications demanding stable reference voltages without complex circuitry. Evaluate thermal performance requirements against the specified operating temperature range before integration into the final design.

Part Context

This component belongs to the TL431 family of programmable shunt regulators. It serves as a direct replacement for industry-standard references like the TL431, offering comparable electrical performance in a compact SOT-23 package. The device is widely utilized in general-purpose electronics for voltage regulation and protection tasks.

Replacement Considerations

Compatible substitutes include the TL431AIDBZR and LM431CIM3/NOPB. Verify pinout compatibility and ensure the alternative parts meet the same ±1% accuracy and 100mA current specifications.