Texas Instruments
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TLVH431CPK
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TLVH431CPK

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable Precision Shunt Regulator - Low Temperature Coefficient - Wide Operating Current Range - Low Dynamic Output Impedance

Package: TO-92 (3-Lead Plastic Package)

Essence: The TLVH431CPK is a precision shunt regulator that provides a stable reference voltage. It is commonly used in various electronic circuits to maintain a constant voltage level.

Packaging/Quantity: The TLVH431CPK is available in a TO-92 package, which contains 1000 units per reel.

Specifications

  • Reference Voltage: 2.5V
  • Operating Current Range: 1μA to 100mA
  • Temperature Coefficient: ±50ppm/°C
  • Dynamic Output Impedance: 0.25Ω

Detailed Pin Configuration

The TLVH431CPK has three pins:

  1. Anode (A): Connected to the positive supply voltage.
  2. Cathode (C): Connected to the load or ground.
  3. Reference (R): Provides the stable reference voltage.

Functional Features

  • Voltage Regulation: The TLVH431CPK maintains a constant voltage level across the load by adjusting its internal resistance.
  • Precision: It offers high accuracy and stability in voltage regulation.
  • Temperature Compensation: The device compensates for temperature variations to ensure consistent performance.
  • Low Power Consumption: The TLVH431CPK operates with low quiescent current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - High precision and stability - Wide operating current range - Low dynamic output impedance - Temperature compensation

Disadvantages: - Limited output current capacity - Requires an external resistor for precise voltage regulation

Working Principles

The TLVH431CPK operates as a shunt regulator by comparing the reference voltage (2.5V) with the input voltage. It adjusts its internal resistance to maintain a constant voltage across the load. The device continuously monitors the voltage difference and regulates it by controlling the current flow through the shunt resistor.

Detailed Application Field Plans

The TLVH431CPK finds applications in various electronic systems, including:

  1. Voltage Regulation: It is used to stabilize the power supply voltage in microcontrollers, sensors, and other digital circuits.
  2. Battery Charging: The TLVH431CPK ensures accurate charging voltage for batteries in portable devices.
  3. Audio Amplifiers: It provides a stable reference voltage for biasing and amplification stages in audio amplifiers.
  4. Temperature Sensors: The TLVH431CPK helps maintain precise temperature measurements in thermocouples and RTDs.
  5. LED Drivers: It regulates the current flowing through LEDs, ensuring consistent brightness levels.

Detailed and Complete Alternative Models

Some alternative models to TLVH431CPK are:

  1. LM431: Adjustable Precision Shunt Regulator with similar specifications.
  2. TL431: Programmable Precision Reference with adjustable output voltage.
  3. LT1009: Precision Reference with low temperature coefficient and high accuracy.

These alternatives offer similar functionality and can be used as substitutes based on specific requirements.

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Énumérez 10 questions et réponses courantes liées à l'application de TLVH431CPK dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of TLVH431CPK in technical solutions:

  1. Q: What is TLVH431CPK? A: TLVH431CPK is a precision shunt regulator that provides a stable voltage reference.

  2. Q: What is the purpose of TLVH431CPK in technical solutions? A: TLVH431CPK is commonly used as a voltage reference or voltage regulator in various electronic circuits.

  3. Q: What is the voltage range supported by TLVH431CPK? A: TLVH431CPK supports a voltage range from 1.24V to 16V.

  4. Q: How does TLVH431CPK maintain a stable voltage output? A: TLVH431CPK uses a feedback mechanism to regulate the output voltage, ensuring it remains constant even with varying input voltages.

  5. Q: Can TLVH431CPK be used in both low and high voltage applications? A: Yes, TLVH431CPK can be used in both low and high voltage applications, making it versatile for various technical solutions.

  6. Q: Is TLVH431CPK suitable for precision applications? A: Yes, TLVH431CPK is designed for precision applications where a stable voltage reference is required.

  7. Q: What is the typical current rating of TLVH431CPK? A: The typical current rating of TLVH431CPK is around 100mA.

  8. Q: Can TLVH431CPK handle overvoltage protection? A: Yes, TLVH431CPK has built-in overvoltage protection, which helps protect the circuitry from excessive voltage levels.

  9. Q: Are there any temperature limitations for TLVH431CPK? A: TLVH431CPK has a wide operating temperature range, typically from -40°C to 125°C, making it suitable for various environments.

  10. Q: Can TLVH431CPK be used in battery-powered applications? A: Yes, TLVH431CPK is commonly used in battery-powered applications due to its low power consumption and stable voltage output.

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