TL431AQDBZRQ1

$0.34

Description：IC VREF SHUNT ADJ 1% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:14d3a981384b Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 1% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：Automotive
Qualification：AEC-Q100

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TL431AQDBZRQ1

Overview

The TL431AQDBZRQ1 is an automotive-grade adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.5 V to 36 V and features an initial accuracy of 1%. The device supports a maximum shunt current of 100 mA with a temperature coefficient of 92 PPM/C. It is qualified under AEC-Q100 standards for automotive applications, ensuring reliability in harsh environments. The component functions as a three-terminal reference voltage source, allowing output voltage adjustment via external resistors.

Feature Summary

AEC-Q100 qualified for automotive electronics reliability
Adjustable output voltage from 2.5 V to 36 V
High precision with 1% initial accuracy
Robust thermal performance across extended temperature ranges

Applications

Automotive power supply regulation circuits
Precision voltage references in vehicle control modules
Battery management system monitoring
Isolated switching power supplies in automotive infotainment

Procurement Notes

Verify the complete part number including the Q1 suffix to confirm automotive qualification status. Ensure the SOT-23-3 package matches the PCB footprint requirements. Confirm RoHS compliance details through the official datasheet before finalizing procurement specifications for production integration.

Selection Notes

Select this component when automotive reliability and high precision are required. The 1% accuracy suits tight tolerance applications compared to standard industrial grades. Consider the 100 mA current capability for driving feedback networks or optocouplers in isolated converter designs requiring stable reference voltages.

Part Context

This device belongs to the TL431 family of programmable shunt regulators. It serves as a direct replacement for standard TL431 variants but includes enhanced testing and documentation for automotive use. The Q1 designation indicates adherence to specific automotive quality management standards defined by the manufacturer.

Replacement Considerations

Compatible substitutes include TL431AQDBZR and TL431BQDBZRG4. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure any alternative maintains the same AEC-Q100 qualification level for automotive safety integrity.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.