TL431ILPE3

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable Precision Shunt Regulator - Programmable Output Voltage - Low Dynamic Output Impedance - High Stability Over Temperature Range - Wide Operating Current Range - Low Output Noise

Package: TO-92, SOT-23, SOIC-8

Essence: The TL431ILPE3 is a precision shunt regulator that can be used to provide a stable reference voltage in various electronic circuits.

Packaging/Quantity: The TL431ILPE3 is available in different package options such as TO-92, SOT-23, and SOIC-8. The quantity per package may vary depending on the manufacturer.

Specifications

Reference Voltage: 2.495V to 36V
Operating Current Range: 1mA to 100mA
Temperature Range: -40°C to +85°C
Output Voltage Tolerance: ±0.5%
Dynamic Output Impedance: 0.22Ω

Detailed Pin Configuration

The TL431ILPE3 has three pins:

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

Functional Features

Adjustable Output Voltage: The TL431ILPE3 allows for precise adjustment of the output voltage using external resistors.
Programmable Output Voltage: The reference voltage can be programmed within a wide range to suit specific application requirements.
Low Dynamic Output Impedance: The low dynamic output impedance ensures stability and accurate voltage regulation.
High Stability Over Temperature Range: The TL431ILPE3 maintains its stability and performance over a wide temperature range.
Wide Operating Current Range: It can operate within a wide current range, making it suitable for various applications.
Low Output Noise: The TL431ILPE3 produces minimal output noise, ensuring clean and reliable voltage regulation.

Advantages and Disadvantages

Advantages: - Precise and stable voltage reference - Adjustable output voltage - Wide operating current range - Low output noise

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

Working Principles

The TL431ILPE3 operates as a shunt regulator by comparing the reference voltage at the Reference (R) pin with an external voltage divider network. By adjusting the resistors in the voltage divider, the desired output voltage can be set. The TL431ILPE3 then regulates the current flowing through the cathode (K) pin to maintain a stable output voltage.

Detailed Application Field Plans

The TL431ILPE3 is widely used in various electronic circuits where a stable reference voltage is required. Some common application areas include:

Voltage regulators
Switching power supplies
Battery chargers
Audio amplifiers
Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the TL431ILPE3 are:

LM4040: Precision Shunt Voltage Reference
LT1009: Precision Reference
REF3030: Micropower Voltage Reference
MAX6126: Ultra-High-Precision Voltage Reference
ADR421: Precision Voltage Reference

These alternative models offer similar functionality and performance characteristics, providing options for different design requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TL431ILPE3 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TL431ILPE3 in technical solutions:

Q: What is TL431ILPE3? A: TL431ILPE3 is a programmable precision voltage reference integrated circuit (IC) commonly used in various technical applications.
Q: What is the purpose of TL431ILPE3? A: TL431ILPE3 is primarily used as a voltage reference or shunt regulator to provide stable and accurate voltage levels in electronic circuits.
Q: What is the voltage range of TL431ILPE3? A: The voltage range of TL431ILPE3 is typically from 2.5 volts to 36 volts, making it suitable for a wide range of applications.
Q: How does TL431ILPE3 work? A: TL431ILPE3 compares the input voltage with an internal reference voltage and adjusts its output accordingly to maintain a constant voltage level.
Q: Can TL431ILPE3 be used as a voltage regulator? A: Yes, TL431ILPE3 can be used as a voltage regulator by connecting it in a shunt configuration to regulate the output voltage.
Q: What are the typical applications of TL431ILPE3? A: TL431ILPE3 is commonly used in power supplies, battery chargers, audio amplifiers, LED drivers, and other electronic circuits requiring precise voltage regulation.
Q: Is TL431ILPE3 suitable for high-current applications? A: TL431ILPE3 itself has limited current handling capability, but it can be used in conjunction with external transistors to handle higher currents.
Q: How accurate is TL431ILPE3 in voltage regulation? A: TL431ILPE3 has a typical accuracy of ±1% and can provide stable voltage regulation even under varying load conditions.
Q: Can TL431ILPE3 be used in automotive applications? A: Yes, TL431ILPE3 is suitable for automotive applications as it can operate over a wide temperature range and withstand automotive voltage transients.
Q: Are there any precautions to consider when using TL431ILPE3? A: It is important to ensure proper decoupling and thermal management when using TL431ILPE3 to maintain stability and prevent overheating.