Microsemi Corporation
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
TL431ILP
詳細を表示 DataSheets

TL431ILP

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Reference
  • Characteristics:
    • Adjustable precision shunt regulator
    • Programmable output voltage
    • Low dynamic impedance
    • Wide operating current range
  • Package: TO-92 (3-pin)
  • Essence: Precision voltage reference
  • Packaging/Quantity: Tape and Reel, 2000 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

Detailed Pin Configuration

The TL431ILP is a 3-pin device with the following pin configuration:

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

Functional Features

  • Adjustable Output Voltage: The TL431ILP allows for precise adjustment of the output voltage using external resistors.
  • Programmable Shunt Regulator: It acts as a programmable shunt regulator, maintaining a stable voltage across the load.
  • Low Dynamic Impedance: The device exhibits low dynamic impedance, ensuring stability even with varying load conditions.
  • Wide Operating Current Range: The TL431ILP can operate within a wide range of current levels, making it versatile for various applications.

Advantages and Disadvantages

Advantages: - High precision voltage reference - Easy to use and configure - Wide operating temperature range - Low dynamic impedance ensures stability

Disadvantages: - Limited output current capability - Requires external resistors for voltage adjustment

Working Principles

The TL431ILP is a precision shunt regulator that maintains a stable voltage across the load. It compares the reference voltage at the Reference (R) pin with the voltage at the Cathode (K) pin. By adjusting the voltage at the Anode (A) pin, the device regulates the voltage at the Cathode (K) pin, providing a stable output voltage.

Detailed Application Field Plans

The TL431ILP finds applications in various fields, including:

  1. Power Supplies: It can be used as a voltage reference in power supply circuits, ensuring stable output voltages.
  2. Battery Charging: The TL431ILP can be employed in battery charging circuits to maintain precise voltage levels during the charging process.
  3. Voltage Regulation: It is suitable for voltage regulation in electronic devices, ensuring consistent performance.
  4. Audio Amplifiers: The TL431ILP can be utilized in audio amplifiers to provide accurate biasing and voltage stabilization.

Detailed and Complete Alternative Models

Some alternative models to the TL431ILP include:

  1. TLV431B: A low-voltage version of the TL431ILP, suitable for applications requiring lower reference voltages.
  2. LM4040: A precision voltage reference with similar characteristics but available in different package options.
  3. LT1236: A high-precision shunt regulator with extended temperature range and improved line/load regulation.

These alternative models offer similar functionality and can be considered based on specific application requirements.

Word count: 399 words

技術ソリューションにおける TL431ILP の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of TL431ILP in technical solutions:

  1. Q: What is TL431ILP? A: TL431ILP is a programmable precision voltage reference integrated circuit (IC) that can be used in various technical applications.

  2. Q: What is the purpose of TL431ILP? A: TL431ILP is primarily used as a voltage reference or shunt regulator to provide stable and accurate voltage levels in electronic circuits.

  3. Q: How does TL431ILP work? A: TL431ILP 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 voltage ranges supported by TL431ILP? A: TL431ILP supports a wide range of voltage levels, typically from 2.5V to 36V.

  5. Q: Can TL431ILP be used as a voltage regulator? A: Yes, TL431ILP can be used as a voltage regulator by connecting it in a feedback loop with an external transistor or MOSFET.

  6. Q: What are some common applications of TL431ILP? A: TL431ILP is commonly used in power supplies, battery chargers, audio amplifiers, LED drivers, and other electronic circuits requiring precise voltage regulation.

  7. Q: Is TL431ILP suitable for low-power applications? A: Yes, TL431ILP is designed for low-power applications and has a low quiescent current, making it energy-efficient.

  8. Q: Can TL431ILP handle high currents? A: TL431ILP itself has a limited current handling capability, but it can control an external transistor or MOSFET to handle higher currents.

  9. Q: How do I set the desired output voltage with TL431ILP? A: The output voltage of TL431ILP can be programmed by connecting a resistor divider network between the reference pin and ground, according to the desired voltage level.

  10. Q: Are there any precautions to consider when using TL431ILP? A: Yes, it is important to ensure proper decoupling and stability in the circuit design, avoid exceeding the maximum ratings, and follow the manufacturer's guidelines for optimal performance and reliability.

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