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TL431QDBVRE4
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TL431QDBVRE4

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Reference
  • Characteristics: Adjustable Precision Shunt Regulator
  • Package: SOT-23 (3-Lead)
  • Essence: Programmable Precision Reference
  • Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

  • Reference Voltage Range: 2.495V to 36V
  • Output Current: 100mA
  • Operating Temperature Range: -40°C to +125°C
  • Initial Accuracy: ±1%
  • Temperature Stability: ±50ppm/°C
  • Line Regulation: 0.2% (Typical)
  • Load Regulation: 0.4% (Typical)

Detailed Pin Configuration

The TL431QDBVRE4 has three pins:

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

Functional Features

  • Programmable output voltage with a single external resistor.
  • High precision and stability over temperature and time.
  • Low dynamic impedance.
  • Wide operating current range.
  • Fast response time.

Advantages and Disadvantages

Advantages

  • Easy to use and implement in various applications.
  • Provides stable and accurate voltage references.
  • Low cost and widely available.
  • Can be used as a replacement for Zener diodes.

Disadvantages

  • Requires an external resistor for programming the output voltage.
  • Limited output current capability.
  • Sensitivity to noise and fluctuations in the input voltage.

Working Principles

The TL431QDBVRE4 is a shunt regulator that maintains a constant voltage across the reference pin (R) with respect to the cathode (K). By adjusting the voltage at the reference pin, the output voltage can be programmed. The device compares the reference voltage with an internal voltage divider and adjusts the current flowing through the cathode to maintain the desired output voltage.

Detailed Application Field Plans

The TL431QDBVRE4 is widely used in various applications, including:

  1. Voltage regulation in power supplies.
  2. Battery charging circuits.
  3. Switching power converters.
  4. Precision measurement equipment.
  5. Audio amplifiers.
  6. LED drivers.
  7. Industrial control systems.

Detailed and Complete Alternative Models

  • TL431AQDBZR: SOT-23 (3-Lead), Tape and Reel, 3000 pieces per reel
  • TL431BIDBZT: SOT-23 (3-Lead), Tape and Reel, 3000 pieces per reel
  • TL431CDBZR: SOT-23 (3-Lead), Tape and Reel, 3000 pieces per reel
  • TL431IDBVR: SOT-23 (3-Lead), Tape and Reel, 3000 pieces per reel
  • TL431QDBZR: SOT-23 (3-Lead), Tape and Reel, 3000 pieces per reel

These alternative models offer similar functionality and characteristics to the TL431QDBVRE4, providing flexibility for different design requirements.

In conclusion, the TL431QDBVRE4 is a versatile and widely used voltage reference integrated circuit. Its programmable precision and stability make it suitable for various applications in different industries. While it has some limitations, its advantages outweigh the disadvantages, making it a popular choice among designers and engineers.

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi TL431QDBVRE4 dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of TL431QDBVRE4 in technical solutions:

  1. Question: What is TL431QDBVRE4?
    - Answer: TL431QDBVRE4 is a programmable precision voltage reference integrated circuit (IC) that can be used in various technical applications.

  2. Question: What is the purpose of TL431QDBVRE4?
    - Answer: TL431QDBVRE4 is commonly used as a voltage reference or shunt regulator in electronic circuits to provide stable and accurate voltage levels.

  3. Question: What is the voltage range of TL431QDBVRE4?
    - Answer: The voltage range of TL431QDBVRE4 is typically from 2.5 volts to 36 volts.

  4. Question: How does TL431QDBVRE4 work?
    - Answer: TL431QDBVRE4 compares the input voltage with an internal reference voltage and adjusts its output accordingly to maintain a constant voltage level.

  5. Question: Can TL431QDBVRE4 be used as a voltage regulator?
    - Answer: Yes, TL431QDBVRE4 can be used as a voltage regulator by connecting it in a feedback loop with an external transistor or MOSFET.

  6. Question: What are the typical applications of TL431QDBVRE4?
    - Answer: TL431QDBVRE4 is commonly used in power supplies, battery chargers, audio amplifiers, and other electronic circuits requiring precise voltage regulation.

  7. Question: Is TL431QDBVRE4 suitable for low-power applications?
    - Answer: Yes, TL431QDBVRE4 is suitable for low-power applications as it has a low quiescent current and can operate with low input and output voltages.

  8. Question: Can TL431QDBVRE4 be used in automotive applications?
    - Answer: Yes, TL431QDBVRE4 is qualified for automotive applications and can be used in various automotive systems such as lighting, sensors, and control circuits.

  9. Question: Does TL431QDBVRE4 require external components for operation?
    - Answer: Yes, TL431QDBVRE4 requires external resistors and capacitors to set the desired voltage reference level and stability.

  10. Question: Is TL431QDBVRE4 available in different package options?
    - Answer: Yes, TL431QDBVRE4 is available in various package options, including SOT-23, SOIC, and TSSOP, to suit different circuit board layouts and requirements.

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