ON Semiconductor
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TL431CDMR2G
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TL431CDMR2G

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable Precision Shunt Regulator - Programmable Output Voltage - Low Dynamic Output Impedance - Wide Operating Current Range - High Temperature Stability - Low Output Noise

Package: SOIC-8

Essence: The TL431CDMR2G is a precision shunt regulator that can be used to provide a stable reference voltage in various electronic circuits.

Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Reference Voltage Range: 2.495V to 36V
  • Operating Current Range: 1mA to 100mA
  • Temperature Range: -40°C to +85°C
  • Line Regulation: 0.2% (typical)
  • Load Regulation: 0.4% (typical)
  • Output Voltage Tolerance: ±1%
  • Cathode Current: 1mA to 100mA

Pin Configuration

The TL431CDMR2G has the following pin configuration:

```

| | --| 1 |-- Anode --| 2 |-- Cathode --| 3 |-- Reference --| 4 |-- N/C --| 5 |-- N/C --| 6 |-- N/C --| 7 |-- N/C --| 8 |-- N/C |____| ```

Functional Features

  • Programmable Output Voltage: The TL431CDMR2G allows the user to set the desired output voltage by connecting external resistors.
  • Low Dynamic Output Impedance: Ensures stability and accuracy of the output voltage even with varying load conditions.
  • Wide Operating Current Range: Can handle a wide range of current requirements, making it suitable for various applications.
  • High Temperature Stability: The TL431CDMR2G maintains its reference voltage stability even in extreme temperature conditions.
  • Low Output Noise: Provides a clean and stable reference voltage signal.

Advantages and Disadvantages

Advantages: - Precise and adjustable output voltage - Wide operating current range - High temperature stability - Low output noise

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

Working Principles

The TL431CDMR2G works as a precision shunt regulator by comparing the reference voltage at the Reference pin with an external voltage divider network. It adjusts the current flowing through the cathode to maintain a stable output voltage. By changing the resistance values in the voltage divider, the desired output voltage can be set.

Detailed Application Field Plans

The TL431CDMR2G is commonly used in the following applications:

  1. Voltage Regulation: It can be used as a precision voltage reference in power supplies, battery chargers, and voltage regulators.
  2. Overvoltage Protection: It can be employed as a shunt regulator to protect sensitive electronic components from excessive voltages.
  3. Current Limiting: The TL431CDMR2G can be utilized as a current limiter to prevent excessive current flow in circuits.

Detailed and Complete Alternative Models

Some alternative models to the TL431CDMR2G are:

  1. TLV431AIDBZR: SOT-23 package, adjustable precision shunt regulator.
  2. LM4040CIM3-5.0/NOPB: SOT-23 package, precision micropower shunt voltage reference.
  3. REF3030AIDBZT: SOT-23 package, precision voltage reference with low temperature drift.

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

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng TL431CDMR2G sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of TL431CDMR2G in technical solutions:

  1. Q: What is TL431CDMR2G? A: TL431CDMR2G is a programmable precision voltage reference integrated circuit (IC) commonly used in various technical applications.

  2. Q: What is the purpose of TL431CDMR2G? A: TL431CDMR2G is primarily used as a voltage reference or shunt regulator to provide stable and accurate voltage levels in electronic circuits.

  3. Q: How does TL431CDMR2G work? A: TL431CDMR2G 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 applications of TL431CDMR2G? A: TL431CDMR2G is commonly used in power supplies, battery chargers, voltage regulators, audio amplifiers, and other electronic circuits requiring precise voltage control.

  5. Q: What is the voltage range of TL431CDMR2G? A: The voltage range of TL431CDMR2G is typically from 2.5V to 36V, making it suitable for a wide range of applications.

  6. Q: Can TL431CDMR2G be used as a current regulator? A: Yes, TL431CDMR2G can be used as a current regulator by connecting it in series with a resistor and adjusting the reference voltage to control the current flow.

  7. Q: Is TL431CDMR2G compatible with both analog and digital circuits? A: Yes, TL431CDMR2G can be used in both analog and digital circuits, providing stable voltage references for various applications.

  8. Q: What is the accuracy of TL431CDMR2G? A: TL431CDMR2G has a typical accuracy of ±1% over the specified temperature range, ensuring precise voltage regulation.

  9. Q: Can TL431CDMR2G handle high currents? A: TL431CDMR2G can handle currents up to 100mA, making it suitable for low to moderate power applications.

  10. Q: Are there any precautions to consider when using TL431CDMR2G? A: Yes, some precautions include proper heat sinking, avoiding excessive input voltage, and ensuring stable operating conditions to maximize performance and reliability.

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