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TL431BIDBVTE4
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TL431BIDBVTE4

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Reference
  • Characteristics:
    • Adjustable precision shunt regulator
    • Programmable output voltage
    • Low dynamic output impedance
    • Wide operating current range
  • Package: SOT-23 (Small Outline Transistor)
  • Essence: Precision voltage reference
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

The TL431BIDBVTE4 is an integrated circuit voltage reference that provides a highly accurate and stable output voltage. It operates as a precision shunt regulator, allowing the user to program the desired output voltage by selecting appropriate external resistors. The device offers a low dynamic output impedance, ensuring excellent load regulation.

Key specifications of the TL431BIDBVTE4 include:

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

Pin Configuration

The TL431BIDBVTE4 is available in a SOT-23 package with three pins. The pin configuration is as follows:

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

Functional Features

The TL431BIDBVTE4 offers several functional features that make it suitable for various applications:

  1. Adjustable Output Voltage: The device allows the user to set the desired output voltage by connecting external resistors.
  2. Precision Regulation: It provides a highly accurate and stable output voltage, ensuring precise regulation in different operating conditions.
  3. Wide Operating Current Range: The TL431BIDBVTE4 can operate within a wide current range, making it suitable for applications with varying load requirements.
  4. Low Dynamic Output Impedance: The device exhibits low dynamic output impedance, resulting in excellent load regulation.

Advantages and Disadvantages

Advantages: - High precision and stability - Adjustable output voltage - Wide operating current range - Low dynamic output impedance - Cost-effective solution

Disadvantages: - Requires external resistors for voltage programming - Limited temperature range (-40°C to +85°C)

Working Principles

The TL431BIDBVTE4 operates based on the principle of a precision shunt regulator. It compares the reference voltage at the Reference (R) pin with an internal voltage divider network. By adjusting the external resistors connected to the Anode (A) and Cathode (K) pins, the user can set the desired output voltage. The TL431BIDBVTE4 then regulates the output voltage by controlling the current flow through the shunt resistor.

Application Field Plans

The TL431BIDBVTE4 finds applications in various fields, including:

  1. Power Supplies: It is commonly used in power supply circuits to provide a stable reference voltage for voltage regulation.
  2. Battery Charging Systems: The TL431BIDBVTE4 can be employed in battery charging systems to maintain a constant charging voltage.
  3. Audio Amplifiers: It can be utilized in audio amplifier circuits to ensure precise biasing and voltage stabilization.
  4. Industrial Control Systems: The device is suitable for industrial control systems that require accurate voltage references for signal conditioning and control purposes.

Alternative Models

In addition to the TL431BIDBVTE4, there are several alternative models available in the market that offer similar functionality. Some popular alternatives include:

  1. LM431: Manufactured by Texas Instruments, it provides adjustable precision voltage references.
  2. LT1009: Produced by Analog Devices, it offers a low dropout voltage reference with high accuracy.
  3. MAX6126: Developed by Maxim Integrated, it is a high-precision voltage reference with ultra-low noise.

These alternative models can be considered based on specific application requirements and design constraints.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TL431BIDBVTE4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TL431BIDBVTE4 in technical solutions:

  1. Q: What is TL431BIDBVTE4? A: TL431BIDBVTE4 is a programmable precision voltage reference integrated circuit (IC) commonly used in various technical solutions.

  2. Q: What is the purpose of TL431BIDBVTE4? A: TL431BIDBVTE4 is primarily used as a voltage reference or shunt regulator in electronic circuits to provide stable and accurate voltage levels.

  3. Q: What is the voltage range of TL431BIDBVTE4? A: The voltage range of TL431BIDBVTE4 is typically from 2.5V to 36V, making it suitable for a wide range of applications.

  4. Q: How does TL431BIDBVTE4 work? A: TL431BIDBVTE4 works by comparing the input voltage with an internal reference voltage and adjusting its output accordingly to maintain a constant voltage level.

  5. Q: Can TL431BIDBVTE4 be used as a voltage regulator? A: Yes, TL431BIDBVTE4 can be used as a voltage regulator by connecting it in a feedback loop with other components to stabilize the output voltage.

  6. Q: What are the typical applications of TL431BIDBVTE4? A: TL431BIDBVTE4 is commonly used in power supplies, battery chargers, audio amplifiers, LED drivers, and other electronic circuits requiring precise voltage control.

  7. Q: Is TL431BIDBVTE4 suitable for low-power applications? A: Yes, TL431BIDBVTE4 is suitable for low-power applications as it has a low quiescent current and can operate with low power dissipation.

  8. Q: Can TL431BIDBVTE4 be used in automotive applications? A: Yes, TL431BIDBVTE4 is often used in automotive applications due to its wide operating temperature range and robustness.

  9. Q: What are the advantages of using TL431BIDBVTE4? A: Some advantages of TL431BIDBVTE4 include its high accuracy, low cost, ease of use, and ability to provide stable voltage references.

  10. Q: Are there any precautions to consider when using TL431BIDBVTE4? A: Yes, some precautions include ensuring proper heat dissipation, avoiding excessive input voltage, and following the manufacturer's guidelines for circuit design and layout.

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