Texas Instruments
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TL431ACPWR
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TL431ACPWR

Product Overview

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

Specifications

  • Reference Voltage Range: 2.495V to 36V
  • Output Current: 1mA to 100mA
  • Temperature Range: -40°C to +85°C
  • Accuracy: ±1%
  • Operating Voltage Range: 2.5V to 36V

Detailed Pin Configuration

The TL431ACPWR 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

  • Adjustable output voltage.
  • High accuracy and stability.
  • Low dynamic impedance.
  • Low temperature coefficient.
  • Wide operating voltage range.
  • Low power consumption.

Advantages

  • Flexibility in setting the desired output voltage.
  • Excellent precision and stability.
  • Suitable for a wide range of applications.
  • Easy to use and integrate into circuits.
  • Cost-effective solution.

Disadvantages

  • Limited output current capability.
  • Requires external components for proper operation.
  • Sensitivity to noise and fluctuations in the input voltage.

Working Principles

The TL431ACPWR is a programmable precision shunt regulator that provides a stable reference voltage. It compares the reference voltage at the R pin with the voltage at the Anode pin and adjusts the current flowing through the internal resistor network. This adjustment controls the output voltage at the Cathode pin, maintaining it at a precise level.

Detailed Application Field Plans

The TL431ACPWR is widely used in various applications, including:

  1. Voltage regulation in power supplies.
  2. Battery charging circuits.
  3. Switching regulators.
  4. Overvoltage protection circuits.
  5. Current limiting circuits.
  6. Precision measurement equipment.
  7. Audio amplifiers.
  8. LED drivers.

Detailed and Complete Alternative Models

  • TL431ACLP
  • TL431BQDBZR
  • TL431AQDBZR
  • TL431BIDBZT
  • TL431BQDCKR

These alternative models offer similar functionality and can be used as substitutes for the TL431ACPWR in various applications.

In conclusion, the TL431ACPWR is a versatile voltage reference integrated circuit with adjustable precision shunt regulation capabilities. Its high accuracy, stability, and wide operating voltage range make it suitable for a variety of applications. However, it has limitations in terms of output current capability and sensitivity to noise. Engineers can consider alternative models based on their specific requirements.

Énumérez 10 questions et réponses courantes liées à l'application de TL431ACPWR dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of TL431ACPWR:

  1. Q: What is TL431ACPWR? A: TL431ACPWR is a three-terminal adjustable precision shunt regulator commonly used in technical solutions.

  2. Q: What is the purpose of TL431ACPWR? A: TL431ACPWR is used to provide accurate voltage references, voltage regulation, and error amplification in various electronic circuits.

  3. Q: How does TL431ACPWR work? A: TL431ACPWR compares the reference voltage with an external voltage divider network and adjusts its output to maintain a stable voltage.

  4. Q: What is the voltage range of TL431ACPWR? A: The voltage range of TL431ACPWR is typically from 2.5V to 36V.

  5. Q: Can TL431ACPWR be used as a voltage regulator? A: Yes, TL431ACPWR can be used as a voltage regulator by connecting it in series with a resistor and a capacitor to stabilize the output voltage.

  6. Q: Is TL431ACPWR suitable for low-power applications? A: Yes, TL431ACPWR is commonly used in low-power applications due to its low quiescent current and low dropout voltage.

  7. Q: Can TL431ACPWR be used in high-current applications? A: TL431ACPWR can be used in high-current applications by using an external transistor to amplify the current handling capability.

  8. Q: What are the typical applications of TL431ACPWR? A: TL431ACPWR is widely used in power supplies, battery chargers, voltage references, feedback control circuits, and precision measurement equipment.

  9. Q: Does TL431ACPWR require external components for operation? A: Yes, TL431ACPWR requires an external voltage divider network and a bypass capacitor for stable operation.

  10. Q: Is TL431ACPWR available in different package options? A: Yes, TL431ACPWR is available in various package options such as SOT-23, SOIC, and TO-92, allowing flexibility in circuit design and PCB layout.

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