TL431QDBZR

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TL431QDBZR

IC VREF SHUNT ADJ 2.2% SOT23-3

  • Производитель
  • Мфр. Часть #TL431QDBZR
  • Пакет SOT-23 (DBZ)-3
  • Лист данных
  • В наличии7469

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Спецификации

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
ReferenceType Shunt
OutputType Adjustable
Voltage-Output(Min/Fixed) 2.495V
Voltage-Output(Max) 36 V
Current-Output 100 mA
Tolerance ±2.2%
Current-Cathode 1 mA
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
Package/Case TO-236-3, SC-59, SOT-23-3

Обзор

Description

The TL431QDBZR is a precision programmable voltage reference device designed for use in a variety of electronic applications. It is part of the TL431 series by Texas Instruments and is known for its adjustable shunt regulator capabilities. The device offers a wide operating voltage range from 2.5V to 36V, making it suitable for both linear and switching power supplies, as well as other applications requiring a precise voltage reference.
Key features of the TL431QDBZR include low dynamic output impedance, a wide temperature operating range, and the ability to maintain stable operation across different load conditions. It provides a reference voltage of 2.5V with a tolerance of ±0.5% or ±1%, depending on the model. This makes it ideal for use in feedback loops of power supplies or for driving analog-to-digital converters.
The device is available in various package types, allowing flexibility in PCB design, and is widely used in consumer electronics, industrial systems, and automotive applications. Its reliability and accuracy have made the TL431QDBZR a popular choice for designers seeking a dependable voltage reference solution.

Features

The TL431QDBZR is a precision programmable shunt regulator commonly used for voltage regulation. Key features include:
1. Adjustable Output Voltage: Capable of precision voltage regulation with an output voltage adjustable from 2.5V to 36V.

2. Wide Operating Range: Supports a broad operating current range from 1 mA to 100 mA, making it versatile for various applications.
3. High Accuracy: Offers a tight tolerance with initial accuracy as low as ±1%, ensuring reliable performance in critical applications.
4. Temperature Stability: Provides excellent temperature stability, with a typical temperature coefficient of 50 ppm/°C, which is crucial for maintaining performance across different temperatures.
5. Low Dynamic Output Impedance: Features low output impedance of about 0.2Ω, ensuring stable performance under varying load conditions.
6. Fast Response Time: Capable of quick response to input voltage changes, enhancing regulation efficiency.
7. Surface-Mount Package: Available in a compact SOT-23-3 package, suitable for space-constrained applications.
The TL431QDBZR is widely used in power supplies, voltage monitoring, and as a reference in a variety of electronic circuits.

Package

The TL431QDBZR is a precision adjustable shunt regulator available in a SOT-23 surface-mount package. This package type is compact, suitable for space-constrained applications, and provides a cost-effective solution for voltage reference and regulation tasks.

Pinout

The TL431QDBZR is a 3-pin adjustable precision shunt regulator. Here's a brief overview of its pin configuration and functions:
1. Pin Count: The TL431QDBZR has three pins.

2. Pin Functions:
- Pin 1 (Reference or Ref): This pin is used to set the reference voltage. By connecting a resistor network to this pin, you can adjust the output voltage to a desired level.
- Pin 2 (Anode): This pin is the anode of the internal diode and is typically connected to ground in most applications.
- Pin 3 (Cathode): This pin is the cathode of the internal diode and is connected to the load or output voltage. It functions as the output where the regulated voltage is maintained.
The TL431QDBZR is commonly used for voltage regulation in power supplies and as a reference in various electronic circuits. Its adjustable nature allows for versatile applications across many voltage levels.

Manufacturer

The TL431QDBZR is manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. It is one of the largest and most reputable companies in the semiconductor industry and provides products that are integral to various electronic devices and systems. TI's products are used in applications ranging from consumer electronics to automotive and industrial systems. The company is headquartered in Dallas, Texas, and is known for its innovation in producing reliable and efficient semiconductor solutions.

Application

The TL431QDBZR is a versatile voltage reference device commonly used in various applications, such as power supply regulation, switching power supplies, and adjustable voltage references. It is also used in precision current limiting, battery chargers, and overvoltage/undervoltage protection circuits. Its ability to provide a stable reference voltage makes it ideal for use in analog and digital circuit designs where voltage regulation is crucial.

Equivalent

Equivalent products for the TL431QDBZR, a precision programmable shunt regulator, include the LM431 series, KA431, AZ431, LMV431, and TLVH431. These components serve similar functions and can often be interchanged depending on specific circuit requirements. Always verify electrical characteristics and pin configurations to ensure compatibility in your application.

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