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TL1431QDR
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TL1431QDR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Reference
  • Characteristics: Precision, Adjustable Output, Low Power Consumption
  • Package: SOIC-8
  • Essence: TL1431QDR is a precision shunt regulator that provides a stable reference voltage for various applications.
  • Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

  • Reference Voltage Range: 2.5V to 36V
  • Output Current: Up to 100mA
  • Operating Temperature Range: -40°C to +85°C
  • Line Regulation: 0.02%/V
  • Load Regulation: 0.4%/mA
  • Quiescent Current: 0.6mA

Detailed Pin Configuration

The TL1431QDR is an 8-pin IC with the following pin configuration:

  1. Anode
  2. Cathode
  3. NC (No Connection)
  4. NC (No Connection)
  5. Control Terminal
  6. NC (No Connection)
  7. NC (No Connection)
  8. Ground

Functional Features

  • Precision Voltage Reference: TL1431QDR provides a highly accurate reference voltage, making it suitable for precision applications.
  • Adjustable Output: The output voltage can be easily adjusted using external resistors, allowing flexibility in various circuit designs.
  • Low Power Consumption: With a low quiescent current of 0.6mA, the TL1431QDR minimizes power consumption, making it ideal for battery-powered devices.

Advantages and Disadvantages

Advantages: - High precision and stability - Wide range of adjustable output voltages - Low power consumption - Compact package size

Disadvantages: - Limited output current capability (up to 100mA) - Requires external resistors for voltage adjustment

Working Principles

The TL1431QDR operates as a shunt regulator, maintaining a stable reference voltage across its terminals. It compares the reference voltage with the input voltage and adjusts the current flowing through it to maintain a constant output voltage. By adjusting the resistance connected to the control terminal, the desired output voltage can be set.

Detailed Application Field Plans

The TL1431QDR is commonly used in various applications, including:

  1. Voltage regulators in power supplies
  2. Battery charging circuits
  3. Precision measurement equipment
  4. Audio amplifiers
  5. Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the TL1431QDR are:

  1. LM431: Similar shunt regulator with adjustable output voltage.
  2. TL431: Another precision shunt regulator with adjustable output voltage.
  3. LT1236: Precision voltage reference with fixed output voltage options.

These alternative models offer similar functionality and can be used depending on specific requirements and availability.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TL1431QDR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TL1431QDR in technical solutions:

1. What is TL1431QDR? TL1431QDR is a precision shunt regulator integrated circuit (IC) that provides a stable voltage reference.

2. What is the typical operating voltage range for TL1431QDR? The typical operating voltage range for TL1431QDR is from 2.5V to 36V.

3. How does TL1431QDR work as a shunt regulator? TL1431QDR works by comparing the voltage across its reference pins with an internal reference voltage, and then adjusting its shunt current to maintain a constant output voltage.

4. Can TL1431QDR be used as an adjustable voltage reference? Yes, TL1431QDR can be used as an adjustable voltage reference by connecting external resistors to set the desired output voltage.

5. What is the maximum shunt current that TL1431QDR can handle? The maximum shunt current that TL1431QDR can handle is typically 100mA.

6. Is TL1431QDR suitable for low-power applications? Yes, TL1431QDR is suitable for low-power applications as it has a low quiescent current consumption.

7. Can TL1431QDR be used in battery-powered devices? Yes, TL1431QDR can be used in battery-powered devices due to its low power consumption and wide operating voltage range.

8. Does TL1431QDR have built-in overvoltage protection? No, TL1431QDR does not have built-in overvoltage protection. External protection components may be required to prevent damage from excessive voltages.

9. Can TL1431QDR be used in automotive applications? Yes, TL1431QDR can be used in automotive applications as it is designed to operate in a wide temperature range and has good stability.

10. Are there any recommended application circuits for TL1431QDR? Yes, the datasheet of TL1431QDR provides several recommended application circuits that can be used as a starting point for various technical solutions.

Please note that these answers are general and may vary depending on specific design requirements and conditions. It is always recommended to refer to the datasheet and consult with an experienced engineer for accurate and detailed information.