TL431BSA-7

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TL431BSA-7

+Nomenclature

IC VREF SHUNT ADJ 0.5% SOT23-3

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Spécifications

Attribut Valeur
Part Status Active
Reference Type Shunt
Output Type Adjustable
Voltage - Output (Min/Fixed) 2.495V
Current - Output 100 mA
Tolerance ±0.5%
Operating Temperature -40°C ~ 125°C (TA)
Mounting Type Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23-3
Base Product Number TL431
Current - Cathode 700 µA
Voltage - Output (Max) 36 V

Présentation

Description

The TL431BSA-7 is a precision voltage reference and shunt regulator diode commonly used in electronic circuits for maintaining a stable voltage. It operates as an adjustable shunt regulator with a reference voltage of 2.5V, and it can be adjusted to output voltages ranging from 2.5V to 36V by using two external resistors. The device features a highly accurate reference voltage with a typical tolerance of ±0.5%, making it suitable for applications requiring precise voltage regulation.
The TL431BSA-7 is known for its wide operating current range, from 1 mA to 100 mA, and its flexibility in handling different voltage requirements, which makes it a versatile component in power supply circuits, voltage monitoring, and feedback loops. Its compact size and reliability make it ideal for use in consumer electronics, industrial equipment, and automotive applications. The TL431BSA-7 is available in a range of package options, providing designers with flexibility in terms of space and design constraints.

Equivalent

The TL431BSA-7 is a precision programmable shunt voltage reference. Equivalent products include:
1. LM431 series by Texas Instruments
2. KA431 series by ON Semiconductor
3. AS431 series by Diodes Incorporated
4. TLV431 series for low voltage applications
5. AZ431 series by Diodes Incorporated
6. LMV431 series for lower voltage references
These equivalents offer similar functionality in terms of voltage reference and shunt regulation capabilities. Always check the datasheets to ensure compatibility with your specific application.

Features

The TL431BSA-7 is a precision programmable voltage reference with several notable features. It offers a wide operating voltage range from 2.5V to 36V, making it suitable for diverse applications. The device provides an adjustable output voltage, allowing for flexibility in setting the desired reference level. It boasts a high accuracy of ±0.5%, ensuring reliable performance in precision circuits. The TL431BSA-7 is housed in a SOT-23 package, which is compact and suitable for space-constrained designs. It also features a low output impedance, typically 0.2Ω, which improves stability and load regulation. Additionally, the device has a programmable shunt regulator, capable of driving up to 100mA, ensuring versatility in various circuit configurations. With a temperature range of -40°C to +85°C, it is suitable for use in a wide range of environmental conditions. Overall, the TL431BSA-7 is a versatile, precise, and reliable solution for voltage reference needs in electronic circuits.

Pinout

The TL431BSA-7 is a precision programmable shunt regulator. It typically comes in a 3-pin package, such as SOT-23 or other similar configurations. The three pins are:
1. Anode (A): This is the pin through which the current flows out to maintain a stable voltage across the cathode and reference pins.
2. Cathode (K): This pin is connected to the ground or the negative side of the input voltage. It acts as the output for the regulated voltage.
3. Reference (R): This pin is used to set the output voltage. By connecting external resistors between the reference pin and the cathode, users can set the desired output voltage level.
The TL431BSA-7 can be used in a variety of applications, such as voltage reference circuits, adjustable power supplies, and switching power supplies, due to its capability to provide a stable voltage reference over a wide range of temperatures and input voltages.

Manufacturer

The TL431BSA-7 is manufactured by Diodes Incorporated. Diodes Incorporated is a global semiconductor company that specializes in the design, manufacturing, and supply of high-quality semiconductor products. They offer a broad range of products, including discrete, analog, and mixed-signal semiconductor solutions. Their product portfolio is used in a wide array of applications, including consumer electronics, computing, communication, industrial, and automotive markets. The company is known for its focus on quality, innovation, and customer service, and it operates with a strong emphasis on efficiency, reliability, and sustainability in its manufacturing processes.

Application

The TL431BSA-7 is a precision programmable shunt voltage regulator. It is commonly used in the following applications:
1. Power Supplies: Acts as a reference voltage source for switching power supplies and linear regulators.
2. Voltage Monitoring: Ensures precise voltage regulation in battery chargers and other voltage-sensitive applications.
3. Temperature Compensation: Offers reference voltage stability across varying temperatures in sensor systems.
4. Data Converters: Used in analog-to-digital and digital-to-analog converters for stable reference voltage.
5. LED Drivers: Provides constant voltage for LED lighting applications.
6. Feedback Circuits: Used in feedback loops of PWM controllers for improved performance.
These applications leverage its adjustable output voltage and stability.

Package

The TL431BSA-7 is a programmable precision shunt regulator typically available in a surface-mount SOT-23 package. This package type is compact and suitable for densely populated circuit boards, offering ease of handling in automated assembly processes.