Texas Instruments
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TL431BIDE4
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TL431BIDE4

Product Overview

Category

The TL431BIDE4 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

  • High precision: The TL431BIDE4 provides a highly accurate voltage reference.
  • Adjustable output: It allows for adjustable output voltage by using external resistors.
  • Low temperature coefficient: The device exhibits low sensitivity to temperature changes.
  • Low dynamic impedance: It has a low dynamic output impedance, making it suitable for stabilizing voltage levels.

Package

The TL431BIDE4 is available in a small SOT-23 package.

Essence

The essence of TL431BIDE4 lies in its ability to provide a stable and precise voltage reference for electronic systems.

Packaging/Quantity

The TL431BIDE4 is typically packaged in reels containing 3000 units.

Specifications

  • Reference Voltage: 2.5V
  • Operating Temperature Range: -40°C to +85°C
  • Output Current: Up to 100mA
  • Reference Voltage Tolerance: ±1%
  • Dynamic Output Impedance: 0.22Ω

Detailed Pin Configuration

The TL431BIDE4 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 stable reference voltage.

Functional Features

  • Voltage regulation: The TL431BIDE4 maintains a constant output voltage regardless of input variations.
  • Adjustable output: By connecting external resistors, the output voltage can be adjusted to the desired level.
  • Overvoltage protection: It offers protection against excessive voltage levels.
  • Short-circuit protection: The device automatically limits the current in case of a short circuit.

Advantages and Disadvantages

Advantages

  • High precision and stability.
  • Adjustable output voltage.
  • Low temperature coefficient.
  • Small package size.

Disadvantages

  • Limited output current capacity.
  • Requires external resistors for voltage adjustment.

Working Principles

The TL431BIDE4 operates based on the principle of a shunt regulator. It compares the reference voltage at the Reference (R) pin with the voltage across the load. By adjusting the current flowing through the internal resistor network, it maintains a constant output voltage.

Detailed Application Field Plans

The TL431BIDE4 finds applications in various electronic systems, including:

  1. Power supplies: It is used to regulate the output voltage of power supplies, ensuring stable operation.
  2. Battery charging circuits: The TL431BIDE4 helps maintain a constant charging voltage for batteries.
  3. Voltage references: It serves as a precise voltage reference for analog-to-digital converters and other sensitive circuits.
  4. Audio amplifiers: The TL431BIDE4 can be used to stabilize the bias voltage in audio amplifier circuits.

Detailed and Complete Alternative Models

Some alternative models to the TL431BIDE4 include:

  1. LM4040: A precision voltage reference with similar characteristics.
  2. LT1009: Another adjustable precision voltage reference.
  3. REF3030: A low-power voltage reference suitable for battery-powered applications.

These alternatives offer similar functionality and can be used as substitutes depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TL431BIDE4 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TL431BIDE4 in technical solutions:

  1. Q: What is TL431BIDE4? A: TL431BIDE4 is a programmable precision voltage reference integrated circuit (IC) that can be used in various technical applications.

  2. Q: What is the purpose of TL431BIDE4? A: TL431BIDE4 is commonly used as a voltage reference or shunt regulator in electronic circuits to provide stable and accurate voltage levels.

  3. Q: How does TL431BIDE4 work? A: TL431BIDE4 compares the input voltage with an internal reference voltage and adjusts its output accordingly to maintain a constant voltage level.

  4. Q: What are the typical voltage ranges supported by TL431BIDE4? A: TL431BIDE4 typically supports voltage ranges from 2.5V to 36V, making it suitable for a wide range of applications.

  5. Q: Can TL431BIDE4 be used as a current regulator? A: Yes, TL431BIDE4 can be used as a current regulator by connecting it in series with a resistor and controlling the current flow through the resistor.

  6. Q: Is TL431BIDE4 suitable for high-precision applications? A: Yes, TL431BIDE4 is known for its high precision and low temperature coefficient, making it suitable for high-precision applications.

  7. Q: Can TL431BIDE4 be used in switching power supplies? A: Yes, TL431BIDE4 can be used in switching power supplies as a feedback control element to regulate the output voltage.

  8. Q: What are the key features of TL431BIDE4? A: Some key features of TL431BIDE4 include low output voltage deviation, wide operating temperature range, and low dynamic impedance.

  9. Q: Are there any specific precautions to consider when using TL431BIDE4? A: Yes, it is important to ensure proper decoupling and stability compensation for TL431BIDE4 to avoid oscillations or instability in the circuit.

  10. Q: Where can I find more information about TL431BIDE4 and its applications? A: You can refer to the TL431BIDE4 datasheet provided by the manufacturer or consult technical resources and application notes available from semiconductor companies.