TL431AILPR

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TL431AILPR

+Nomenclature

IC VREF SHUNT ADJ 1% TO92-3

  • FabricantTexas Instruments

  • Pièce fabricant #TL431AILPR

  • Package TO-92-3

  • En stock3756

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Spécifications

Attribut Valeur
Package / Case Tape & Reel (TR),Cut Tape (CT),Bulk
Part Status Active
Reference Type Shunt
Output Type Adjustable
Voltage - Output (Min/Fixed) 2.495V
Voltage - Output (Max) 36 V
Current - Output 100 mA
Tolerance ±1%
Current - Cathode 700 µA
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Through Hole

Présentation

Description

The TL431AILPR is a programmable precision shunt regulator diode commonly used in electronic circuits for voltage regulation and reference. It features an adjustable output voltage range from 2.5V to 36V, making it versatile for various applications. The device operates by functioning like a Zener diode with a customizable breakdown voltage, achieved through two external resistors.
Key specifications include a reference voltage of 2.495V with a typical tolerance of ±0.5%, low dynamic impedance, and a wide operating current range, typically from 1mA to 100mA. This makes it suitable for both low-power and high-power applications. The TL431AILPR is often used in power supplies, battery chargers, and as a voltage reference in analog-to-digital converters.
It is packaged in a small, surface-mountable form factor, typically a SOT-89 or similar, which is crucial for compact circuit design. Additionally, the device's stability and precision under varying temperatures and environmental conditions make it a reliable component in electronic design.

Equivalent

Equivalent products to the TL431AILPR chip include:
1. LM431 series (by Texas Instruments)
2. AZ431 series (by Diodes Incorporated)
3. KA431 series (by ON Semiconductor)
4. LMV431 series (by Texas Instruments)
5. TL432 series (another variant by Texas Instruments)
These components function as adjustable precision shunt regulators and are often used in voltage regulation circuits. Always check the datasheets for compatibility regarding voltage, current, and temperature specifications.

Features

The TL431AILPR is a precision programmable voltage reference device commonly used in power supply regulation. Key features include:
1. Adjustable Output Voltage: The TL431AILPR allows for an adjustable output voltage ranging from 2.5V to 36V, achieved through an external resistor divider.
2. Precision Reference: It offers high stability with a tight tolerance of typically ±0.5%, ensuring accurate voltage regulation.
3. Temperature Stability: The device exhibits excellent temperature stability, typically with a low temperature coefficient which makes it suitable for operations across a wide temperature range.
4. Wide Operating Range: It operates over a cathode current range of 1 mA to 100 mA, making it versatile for various applications.
5. Low Dynamic Output Impedance: Typically around 0.2Ω, this feature ensures minimal output fluctuations with varying loads.
6. Package Options: The TL431AILPR is available in several package types, such as SOT-89 and TO-92, facilitating easy integration into different circuit designs.
These features make the TL431AILPR ideal for applications requiring a reliable and precise voltage reference, such as switching power supplies and battery chargers.

Pinout

The TL431AILPR is a three-terminal adjustable shunt regulator. It provides a precise voltage reference and can be used in a variety of applications such as voltage monitoring, precision current limiting, and as a voltage reference in power supplies.
Pin Count and Functions:
1. Cathode (K): This pin is the output of the shunt regulator and is connected to the cathode of the internal reference diode. It allows current to flow through the device and regulates the voltage across the device.
2. Anode (A): This pin is typically grounded or connected to the negative side of the circuit. It serves as the common return path for the current flowing through the device.
3. Reference (R): This pin is used to set the output voltage of the device. By connecting resistors in a potential divider network to this pin, the output voltage can be adjusted over a wide range.
The TL431AILPR is commonly available in different packages, such as SOT-23, and its precise voltage regulation capability makes it suitable for numerous electronic applications.

Manufacturer

The TL431AILPR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. It is one of the world's largest semiconductor companies, known for its innovation in designing and producing a wide range of electronic components. Texas Instruments serves various industries, including automotive, industrial, personal electronics, communications, and enterprise systems.

Application

The TL431AILPR is a programmable precision shunt voltage reference commonly used in various applications. It is typically employed in power supply regulation to maintain stable output voltages, particularly in switch-mode power supplies and overvoltage protection circuits. Additionally, it serves as a reference voltage source in analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), ensuring accurate signal processing. The TL431AILPR is also used in battery chargers to regulate charging voltage and in voltage monitoring circuits to ensure system reliability. Its versatility and precision make it suitable for a wide range of electronic devices, including consumer electronics, industrial control systems, and communication equipment.

Package

The TL431AILPR is typically available in the SOT-89 package type. This package is a small outline transistor type, which is widely used for its compact size and suitability for surface-mount technology (SMT) applications.

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