Texas Instruments
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TL431IDBVTG4
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TL431IDBVTG4

Product Overview

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

Specifications

The TL431IDBVTG4 is an integrated circuit voltage reference that belongs to the TL431 family. It is designed as a precision shunt regulator with adjustable output voltage. The device operates over a wide current range and provides a low dynamic impedance.

Detailed Pin Configuration

The TL431IDBVTG4 package 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

The TL431IDBVTG4 offers the following functional features:

  • Adjustable Output Voltage: The output voltage can be programmed using external resistors.
  • Precision Regulation: Provides a highly accurate reference voltage.
  • Low Dynamic Impedance: Maintains stability even with varying load conditions.
  • Wide Operating Current Range: Can operate within a broad range of current levels.

Advantages and Disadvantages

Advantages: - High precision and accuracy - Adjustable output voltage - Low dynamic impedance - Wide operating current range

Disadvantages: - Requires external resistors for voltage programming - Limited to low-power applications

Working Principles

The TL431IDBVTG4 works based on the principle of a precision shunt regulator. It compares the reference voltage at the Reference pin with the voltage across the external resistors connected to the Anode and Cathode pins. By adjusting the resistance values, the output voltage can be set to the desired level.

Detailed Application Field Plans

The TL431IDBVTG4 is commonly used in various applications, including:

  1. Voltage Regulation: Provides a stable reference voltage for precise regulation in power supplies.
  2. Battery Charging: Ensures accurate charging voltage for batteries.
  3. Audio Amplifiers: Used as a voltage reference in audio amplifier circuits.
  4. Industrial Control Systems: Provides a reliable voltage reference for control systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TL431IDBVTG4 include:

  1. LM4040: Precision shunt voltage reference with adjustable output.
  2. REF3030: Low-power, precision voltage reference with wide operating range.
  3. LT1236: High-precision shunt regulator with low temperature coefficient.

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

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TL431IDBVTG4 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TL431IDBVTG4 in technical solutions:

  1. Q: What is TL431IDBVTG4? A: TL431IDBVTG4 is a programmable precision voltage reference that can be used in various applications as a voltage regulator or comparator.

  2. Q: What is the typical operating voltage range for TL431IDBVTG4? A: The typical operating voltage range for TL431IDBVTG4 is from 2.5V to 36V.

  3. Q: How does TL431IDBVTG4 work as a voltage regulator? A: TL431IDBVTG4 compares the reference voltage with an external voltage divider network and adjusts its output to maintain a constant voltage.

  4. Q: Can TL431IDBVTG4 be used as a shunt regulator? A: Yes, TL431IDBVTG4 can be used as a shunt regulator by connecting it between the voltage source and ground.

  5. Q: What is the purpose of the adjustable reference pin (REF) on TL431IDBVTG4? A: The adjustable reference pin allows users to set the desired output voltage by connecting an external resistor divider network.

  6. Q: Is TL431IDBVTG4 suitable for high-precision applications? A: Yes, TL431IDBVTG4 is known for its high precision and low temperature coefficient, making it suitable for high-precision applications.

  7. Q: Can TL431IDBVTG4 handle high currents? A: TL431IDBVTG4 can handle currents up to 100mA, but for higher currents, an external pass transistor should be used.

  8. Q: What are the typical applications of TL431IDBVTG4? A: TL431IDBVTG4 is commonly used in power supplies, battery chargers, voltage references, and precision analog circuits.

  9. Q: Does TL431IDBVTG4 have built-in protection features? A: Yes, TL431IDBVTG4 has built-in overcurrent and overtemperature protection to ensure safe operation.

  10. Q: Can TL431IDBVTG4 operate in a wide temperature range? A: Yes, TL431IDBVTG4 can operate in a temperature range from -40°C to 125°C, making it suitable for various environments.

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