TL431ACDBVR

Overview

The TL431ACDBVR is an adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a cathode voltage range of 2.495V to 36V and provides an initial accuracy of ±1%. The device supports a maximum cathode current of 100mA with a temperature coefficient of 92ppm/°C. Designed for surface-mount installation, it utilizes a 5-pin SOT-23 package (SC-74A). The component functions within an ambient temperature range of 0°C to +70°C.

Feature Summary

• Provides stable adjustable voltage reference functionality via shunt regulation topology
• Ensures high precision performance with ±1% initial accuracy specification
• Supports wide operating input voltage range up to 36V for flexible circuit integration

Applications

• Portable equipment power supply regulation
• DC-to-DC converter feedback loops
• On-line regulators in automotive electronics

Procurement Notes

Verify the specific suffix 'AC' confirms the required ±1% accuracy grade and commercial temperature range (0°C to +70°C) against design requirements. Confirm the SOT-23-5 package footprint matches the PCB layout. Ensure compliance with RoHS directives if applicable to the target market regulations.

Selection Notes

Select this component when precise voltage referencing is needed in space-constrained designs requiring surface-mount assembly. The ±1% tolerance suits applications demanding tighter regulation than standard references. Consider the 100mA current capability for driving load requirements without external buffering components.

Part Context

This part belongs to the TL431 family of programmable shunt regulators, widely used as voltage references and error amplifiers. The 'A' designation indicates the accuracy grade, while 'C' specifies the commercial temperature range. The 'DBVR' suffix denotes the specific SOT-23-5 tape-and-reel packaging format.

Replacement Considerations

TL431ACDBVT is a direct pin-compatible alternative from Texas Instruments using the same SOT-23-5 package.