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TL431CDRG4
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TL431CDRG4

Product Overview

  • Category: Integrated Circuits (ICs)
  • Use: Voltage References
  • Characteristics:
    • Adjustable Precision Shunt Regulator
    • Programmable Output Voltage
    • Low Dynamic Output Impedance
    • Sink Current Capability up to 100mA
  • Package: SOIC-8
  • Essence: The TL431CDRG4 is a precision shunt regulator that can be used to provide a stable reference voltage in various electronic circuits.
  • Packaging/Quantity: Tape & Reel (2500 pieces per reel)

Specifications

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

Pin Configuration

The TL431CDRG4 has a standard SOIC-8 pin configuration as follows:

____ NC | | Vref Ano | | K Cth | | NC Cth | | NC Cth | | NC Cth | | NC Cth | | NC Cth |____| NC

Functional Features

  • Adjustable Output Voltage: The TL431CDRG4 allows the user to program the desired output voltage by connecting external resistors.
  • Precision Reference: It provides a highly accurate reference voltage with a tolerance of ±1%.
  • Low Dynamic Output Impedance: The device maintains a low output impedance, ensuring stability even with varying load conditions.
  • Sink Current Capability: The TL431CDRG4 can sink current up to 100mA, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - Wide range of adjustable output voltages - High precision reference voltage - Low dynamic output impedance - Sink current capability

Disadvantages: - Requires external resistors for voltage programming - Limited maximum cathode current

Working Principles

The TL431CDRG4 operates as a shunt regulator, maintaining a stable reference voltage across its terminals. By adjusting the resistance connected to the device, the output voltage can be programmed within the specified range. The internal circuitry compares the reference voltage with the feedback voltage and adjusts the current flowing through the device accordingly, ensuring a constant output voltage.

Detailed Application Field Plans

The TL431CDRG4 finds applications in various electronic circuits where a stable reference voltage is required. Some common application fields include:

  1. Voltage Regulation: It can be used as a precision voltage reference in power supplies, battery chargers, and voltage regulators.
  2. Feedback Control: The TL431CDRG4 is often employed in feedback control systems to maintain a stable reference voltage for accurate measurements and control.
  3. Oscillator Circuits: It can be utilized in oscillator circuits to generate precise timing signals.
  4. Temperature Compensation: The TL431CDRG4 can be used for temperature compensation in temperature-sensitive circuits, ensuring stable operation over a wide temperature range.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TL431CDRG4 are:

  1. LM4040: Precision Shunt Voltage Reference
  2. LT1236: Micropower Precision Shunt Voltage Reference
  3. REF3030: Low Dropout Voltage Reference
  4. MAX6126: Ultra-High-Precision Voltage Reference

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

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de TL431CDRG4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of TL431CDRG4 in technical solutions:

  1. Q: What is TL431CDRG4? A: TL431CDRG4 is a three-terminal adjustable precision shunt regulator commonly used in various technical applications.

  2. Q: What is the purpose of TL431CDRG4? A: TL431CDRG4 is used to provide a stable voltage reference or regulate voltage levels in electronic circuits.

  3. Q: How does TL431CDRG4 work? A: TL431CDRG4 compares the reference voltage with an external voltage divider network and adjusts its output accordingly to maintain a constant voltage.

  4. Q: What is the voltage range of TL431CDRG4? A: The voltage range of TL431CDRG4 is typically from 2.5V to 36V, making it suitable for a wide range of applications.

  5. Q: Can TL431CDRG4 be used as a current regulator? A: Yes, TL431CDRG4 can be used as a current regulator by connecting it in series with a resistor and adjusting the reference voltage accordingly.

  6. Q: Is TL431CDRG4 suitable for high-frequency applications? A: TL431CDRG4 is not specifically designed for high-frequency applications, but it can still be used in moderate frequency circuits.

  7. Q: Can TL431CDRG4 handle high currents? A: TL431CDRG4 has a maximum output current rating of 100mA, so it is suitable for low to moderate current applications.

  8. Q: Does TL431CDRG4 require any external components? A: Yes, TL431CDRG4 requires an external voltage divider network and a bypass capacitor for stability and proper operation.

  9. Q: Can TL431CDRG4 be used in battery charging circuits? A: Yes, TL431CDRG4 can be used in battery charging circuits to regulate the charging voltage and protect the battery from overcharging.

  10. Q: Are there any alternative devices to TL431CDRG4? A: Yes, some alternative devices to TL431CDRG4 include LM431, TLV431, and LT431, which have similar functionalities and characteristics.

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