TL431ACDBZR

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TL431ACDBZR

IC VREF SHUNT ADJ 1% SOT23-3

  • Manufacturer
  • Mfr. Part #TL431ACDBZR
  • Package SOT-23 (DBZ)-3
  • Datasheet
  • In Stock4699

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
ReferenceType Shunt
OutputType Adjustable
Voltage-Output(Min/Fixed) 2.495V
Voltage-Output(Max) 36 V
Current-Output 100 mA
Tolerance ±1%
Current-Cathode 600 µA
OperatingTemperature 0°C ~ 70°C (TA)
MountingType Surface Mount
Package/Case TO-236-3, SC-59, SOT-23-3

Overview

Description

The TL431ACDBZR is a precision programmable voltage reference from Texas Instruments. It provides a stable reference voltage of 2.495V, which can be adjusted by using two external resistors in a voltage divider configuration. This makes it versatile for various applications including voltage regulation, switching power supplies, and battery-operated devices.
Encapsulated in a small SOT-23-3 package, the TL431ACDBZR is designed for compact electronic circuits. It offers a wide operating voltage range from 2.5V to 36V and has a low output impedance, making it suitable for precise voltage regulation tasks. The device also features a temperature range of -40°C to +125°C, ensuring reliable performance in diverse environmental conditions.
Key attributes include a typical dynamic output impedance of 0.22Ω and a low output noise, contributing to high accuracy and stability. Its excellent thermal stability and low temperature coefficient make it ideal for precision applications. The TL431ACDBZR is widely used in applications requiring a stable reference voltage, including circuit calibration, data converters, and power management systems.

Features

The TL431ACDBZR is a precision programmable voltage reference from Texas Instruments. Key features include:
1. Adjustable Output Voltage: It provides an output voltage that can be set from 2.5 V to 36 V using two external resistors.
2. Temperature Stability: The device has excellent temperature stability, which makes it suitable for use in temperature-sensitive applications.
3. Low Output Noise: It generates low output noise, making it ideal for precision circuitry.
4. Wide Operating Range: Operates over a wide range of temperatures, typically from -40°C to 85°C.
5. High Accuracy: The TL431ACDBZR offers high accuracy with a typical voltage tolerance of ±0.5%.
6. Small Package Size: Available in a small SOT-23 package, which is advantageous for space-constrained designs.
7. Low-Current Operation: It features low operating current, enhancing its efficiency in low-power applications.
8. Reference Current: Can be used with a low reference current, enhancing its versatility.
These features make the TL431ACDBZR suitable for applications like shunt regulators, voltage monitoring, and precision current sources.

Package

The TL431ACDBZR is a three-terminal adjustable shunt regulator typically available in a SOT-23 surface-mount package. This package type is compact, making it suitable for space-constrained applications, and is often used in voltage regulation and precision current limiters.

Pinout

The TL431ACDBZR is a precision programmable voltage reference. It typically comes in a 3-pin package. The pin functions are as follows:
1. Reference (REF): This pin receives the input for setting the reference voltage. It is connected to the resistor divider that sets the desired output voltage.
2. Anode (A): This pin is connected to the low-side of the load, effectively acting as the cathode of a Zener diode in a typical application. It conducts the cathode current and regulates it relative to the reference voltage.
3. Cathode (K): This is the output pin that provides the regulated voltage. Connected to the load, it controls the current flow for voltage regulation.
The TL431ACDBZR can be used in a variety of applications, including shunt regulators, series regulators, and as a precision voltage reference in circuits. Its primary function is to maintain a stable output voltage despite variations in input voltage, load current, or temperature.

Manufacturer

The TL431ACDBZR is manufactured by Texas Instruments. Texas Instruments, or TI, is a well-established semiconductor company based in the United States. It is one of the largest manufacturers of semiconductors worldwide and specializes in designing and producing a broad range of electronic components, including analog circuits, digital signal processors, and microcontrollers. TI's products are used in various applications across automotive, industrial, personal electronics, and communication sectors, among others. The company is known for its innovation in technology and significant contributions to the semiconductor industry.

Application

The TL431ACDBZR is a precision programmable voltage reference commonly used in applications such as power supply regulation, voltage monitoring, and adjustable voltage references. It is ideal for use in switching power supplies, chargers, and voltage regulators to ensure stable output voltage. Additionally, it is employed in feedback networks for error amplification and in adjustable shunt regulators to maintain precise voltage levels. Its versatility and precision make it suitable for various consumer electronics, industrial controls, and communication equipment applications.

Equivalent

The TL431ACDBZR is a precision programmable shunt regulator. Its equivalent products include the LM431, TL431A, KA431, AZ431, and NCP431. These components serve a similar function as adjustable voltage references in various electronic circuits. When selecting a replacement, ensure compatibility in terms of voltage, current specifications, and package type to match the original application requirements.

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