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TL431AIDBVRE4
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TL431AIDBVRE4

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Reference
  • Characteristics: Adjustable Precision Shunt Regulator
  • Package: SOT-23 (3-Lead)
  • Essence: Programmable Precision References
  • Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

  • Reference Voltage Range: 2.495V to 36V
  • Output Current: 1mA to 100mA
  • Temperature Coefficient: ±50ppm/°C
  • Operating Temperature Range: -40°C to +85°C
  • Line Regulation: 0.2% typical
  • Load Regulation: 0.4% typical
  • Reference Input Current: 0.5μA typical
  • Reference Output Impedance: 0.25Ω typical

Pin Configuration

The TL431AIDBVRE4 has three pins:

  1. Anode (A): Connected to the reference voltage input.
  2. Cathode (K): Connected to the ground or negative supply.
  3. Reference (R): Provides the regulated output voltage.

Functional Features

  • Programmable output voltage with a wide range of options.
  • High precision and stability over temperature and time.
  • Low dynamic impedance for improved regulation.
  • Low output noise for sensitive applications.
  • Fast response time to changes in input voltage.

Advantages and Disadvantages

Advantages

  • Wide operating voltage range allows for versatile applications.
  • Excellent line and load regulation characteristics.
  • Low power consumption.
  • Small package size enables space-saving designs.
  • Cost-effective solution for voltage reference needs.

Disadvantages

  • Requires external resistors for precise voltage selection.
  • Limited output current capability compared to other voltage regulators.
  • Sensitivity to temperature changes may require additional compensation.

Working Principles

The TL431AIDBVRE4 is a precision shunt regulator that uses a bandgap reference to generate a stable output voltage. It compares the reference voltage at the R pin with an external resistor divider network connected between the Anode and Cathode pins. By adjusting the resistance values, the desired output voltage can be set. The TL431AIDBVRE4 then regulates the current flowing through the resistor divider to maintain a constant output voltage.

Detailed Application Field Plans

The TL431AIDBVRE4 finds applications in various fields, including:

  1. Power Supplies: Provides accurate voltage references for linear and switching power supplies.
  2. Battery Charging: Ensures precise voltage control during battery charging processes.
  3. Audio Equipment: Used as a stable reference voltage source for audio amplifiers and DACs.
  4. Instrumentation: Provides stable voltage references for measurement instruments.
  5. Automotive Electronics: Used in automotive systems for voltage regulation and monitoring.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TL431AIDBVRE4 include:

  1. LM4040: Precision Micropower Shunt Voltage Reference
  2. REF3030: Low Dropout Voltage Reference
  3. MAX6126: Ultra-High-Precision Voltage Reference
  4. LT1461: Micropower Precision Series Reference

These alternatives provide comparable performance and can be considered based on specific application requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TL431AIDBVRE4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TL431AIDBVRE4 in technical solutions:

  1. Q: What is TL431AIDBVRE4? A: TL431AIDBVRE4 is a programmable precision voltage reference that can be used in various technical applications.

  2. Q: What is the voltage range of TL431AIDBVRE4? A: The voltage range of TL431AIDBVRE4 is typically from 2.5V to 36V.

  3. Q: How does TL431AIDBVRE4 work? A: TL431AIDBVRE4 operates as a shunt regulator, comparing the reference voltage with an external voltage source to regulate the output.

  4. Q: Can TL431AIDBVRE4 be used as a voltage regulator? A: Yes, TL431AIDBVRE4 can be used as a voltage regulator by connecting it in parallel with a load resistor.

  5. Q: What are the typical applications of TL431AIDBVRE4? A: TL431AIDBVRE4 is commonly used in power supplies, battery chargers, audio amplifiers, and voltage monitoring circuits.

  6. Q: How accurate is TL431AIDBVRE4? A: TL431AIDBVRE4 has a high accuracy with a typical tolerance of ±1%.

  7. Q: Can TL431AIDBVRE4 handle high currents? A: TL431AIDBVRE4 can handle currents up to 100mA, making it suitable for many low-power applications.

  8. Q: Is TL431AIDBVRE4 temperature-compensated? A: Yes, TL431AIDBVRE4 is temperature-compensated, ensuring stable performance over a wide temperature range.

  9. Q: Can TL431AIDBVRE4 be used in automotive applications? A: Yes, TL431AIDBVRE4 is qualified for automotive applications and can operate in harsh environments.

  10. Q: How do I select the right TL431AIDBVRE4 package for my application? A: TL431AIDBVRE4 is available in various packages, such as SOT-23, SOIC, and TO-92. The choice depends on factors like board space and power dissipation requirements.

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.