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TL431BIDR
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TL431BIDR

Product Overview

Category

The TL431BIDR belongs to the category of voltage references and shunt regulators.

Use

It is commonly used as a precision voltage reference in various electronic circuits.

Characteristics

  • Adjustable output voltage
  • High accuracy
  • Low temperature coefficient
  • Low dynamic impedance
  • Wide operating temperature range

Package

The TL431BIDR is available in a small outline package (SOT-23) which allows for easy integration into compact designs.

Essence

The TL431BIDR is an integrated circuit that provides a stable reference voltage, making it suitable for applications requiring precise voltage regulation.

Packaging/Quantity

The TL431BIDR is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

  • Reference Voltage Range: 2.495 V to 36 V
  • Operating Temperature Range: -40°C to +85°C
  • Output Current: Up to 100 mA
  • Reference Voltage Tolerance: ±1%
  • Dynamic Output Impedance: 0.22 Ω

Detailed Pin Configuration

The TL431BIDR has three pins:

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

Functional Features

  • Adjustable Output Voltage: The TL431BIDR can be programmed to provide a precise output voltage by connecting external resistors.
  • Overvoltage Protection: It offers protection against excessive voltage levels, ensuring the safety of connected components.
  • Low Power Consumption: The TL431BIDR operates with low power consumption, making it suitable for battery-powered devices.
  • Fast Response Time: It exhibits a fast response time to changes in input voltage, enabling quick regulation.

Advantages and Disadvantages

Advantages

  • High accuracy and stability
  • Wide operating temperature range
  • Easy integration into compact designs
  • Low dynamic impedance

Disadvantages

  • Limited output current capacity (up to 100 mA)
  • Requires external resistors for voltage adjustment

Working Principles

The TL431BIDR operates based on the principle of a shunt regulator. It compares the reference voltage at the Reference pin with the voltage across the external resistor network. By adjusting the resistance, the output voltage can be precisely regulated.

Detailed Application Field Plans

The TL431BIDR finds applications in various fields, including:

  1. Power Supplies: It is used as a voltage reference in power supply circuits to ensure stable and accurate output voltages.
  2. Battery Charging Systems: The TL431BIDR helps regulate the charging voltage in battery charging systems, preventing overcharging.
  3. Audio Amplifiers: It is employed in audio amplifier circuits to provide a stable bias voltage for improved audio quality.
  4. Voltage Monitoring: The TL431BIDR is utilized in voltage monitoring circuits to detect and respond to voltage variations.

Detailed and Complete Alternative Models

Some alternative models to the TL431BIDR include:

  1. LM4040: A precision voltage reference with similar characteristics and adjustable output voltage.
  2. LT1236: A high-precision shunt regulator offering low temperature coefficient and wide operating temperature range.
  3. REF02: A two-terminal precision voltage reference suitable for demanding applications.

These alternative models provide similar functionality and can be considered as substitutes for the TL431BIDR in specific applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TL431BIDR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TL431BIDR in technical solutions:

  1. Q: What is TL431BIDR? A: TL431BIDR is a three-terminal adjustable precision shunt regulator commonly used in various technical applications.

  2. Q: What is the purpose of TL431BIDR? A: TL431BIDR is used to provide stable voltage references, voltage regulation, and error amplification in electronic circuits.

  3. Q: How does TL431BIDR work? A: TL431BIDR compares the reference voltage with an external voltage divider network and adjusts its output to maintain a constant voltage.

  4. Q: What is the voltage range of TL431BIDR? A: The voltage range of TL431BIDR is typically from 2.5V to 36V, making it suitable for a wide range of applications.

  5. Q: Can TL431BIDR be used as a voltage regulator? A: Yes, TL431BIDR can be used as a voltage regulator by connecting it in series with a resistor and a capacitor to stabilize the output voltage.

  6. Q: Is TL431BIDR suitable for precision applications? A: Yes, TL431BIDR is known for its high precision and low temperature coefficient, making it suitable for precision applications.

  7. Q: Can TL431BIDR be used in switching power supplies? A: Yes, TL431BIDR can be used in switching power supplies to regulate the output voltage and improve overall system stability.

  8. Q: What are the typical applications of TL431BIDR? A: TL431BIDR is commonly used in battery chargers, voltage regulators, power supplies, audio amplifiers, and other electronic circuits.

  9. Q: What are the advantages of using TL431BIDR? A: Some advantages of TL431BIDR include its low cost, high accuracy, wide voltage range, and ease of implementation in various circuits.

  10. Q: Are there any precautions to consider when using TL431BIDR? A: Yes, it is important to ensure proper heat dissipation, avoid exceeding the maximum ratings, and follow the manufacturer's guidelines for optimal performance and reliability.

Please note that these answers are general and may vary depending on specific applications and requirements.