TL431BIPK

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TL431BIPK

+BOM

IC VREF SHUNT ADJ 0.5% SOT89-3

  • ManufacturerTexas Instruments

  • Mfr. Part #TL431BIPK

  • Package SOT-89 (PK)-3

  • In Stock2272

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Specifications

Attribute Value
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 ±0.5%
Current-Cathode 700 µA
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case TO-243AA

Overview

Description

The TL431BIPK is a precision programmable voltage reference commonly used in electronic circuits for voltage regulation and control. It belongs to the TL431 series, featuring a three-terminal configuration: anode, cathode, and reference. This component allows for precise voltage setting through external resistors, providing a stable reference voltage typically ranging from 2.5V to 36V. It operates by comparing the input voltage at the reference terminal to an internal 2.5V reference and adjusting the cathode current accordingly to maintain the desired output voltage.
Key features of the TL431BIPK include a wide operating voltage range, adjustable output voltage, low temperature coefficient, and low output noise, making it suitable for applications like power supply regulation, voltage monitoring, and as a comparator in various electronic devices. The "B" in the part number indicates a particular tolerance and temperature range, ensuring enhanced precision and reliability. The TL431BIPK is housed in various package types, with the PK typically referring to a specific packaging style, such as TO-92 or SOT-89, facilitating easy integration into different circuit designs.

Equivalent

The TL431BIPK is a precision programmable reference voltage device. Equivalent products include the LM431, LMV431, and TLV431 series from Texas Instruments, the NCP431 from ON Semiconductor, the KA431 from Fairchild Semiconductor, and the AS431 from Diodes Incorporated. These devices typically feature similar functionality and electrical characteristics, such as adjustable shunt voltage reference, making them interchangeable in many applications. However, always verify specific parameters and pin configurations to ensure full compatibility.

Features

The TL431BIPK is a precision programmable shunt voltage reference with the following features:
1. Programmable Output Voltage: The output voltage can be set from 2.5V to 36V using two external resistors.
2. High Precision: It offers a tight voltage tolerance of 0.5% to 1%, which ensures high accuracy.
3. Wide Operating Current: The device operates over a wide cathode current range of 1 mA to 100 mA, making it versatile for various applications.
4. Temperature Stability: It exhibits good thermal stability, with a typical temperature coefficient of 30 ppm/°C.
5. Fast Response: The TL431BIPK provides a quick response time, beneficial for feedback loop applications.
6. Low Output Noise: It features low output noise, enhancing performance in sensitive circuits.
7. Package Options: Available in a variety of package types, including SOT-89, which is suitable for space-constrained applications.
These characteristics make the TL431BIPK ideal for use in power supply regulation, instrumentation, and control systems where precision and reliability are critical.

Pinout

The TL431BIPK is a three-terminal adjustable shunt regulator. It typically comes in a package with three pins, which are configured as follows:
1. Reference (Ref): This pin is connected to the reference voltage and is used to set the output voltage level by connecting it to an external resistor divider network.
2. Anode (A): This pin is connected to the lower potential point in the circuit, or ground in most cases. It acts as an input for the current flowing through the device.
3. Cathode (K): This pin is the output of the device and typically connects to the load. The voltage here is regulated based on the reference voltage and the external resistor network.
The TL431BIPK functions as a precision voltage reference and can be used in various applications like precision current limiting, switching power supplies, and adjustable power supplies. Its ability to maintain a constant voltage over a range of currents makes it versatile for use in many electronic circuits.

Manufacturer

The TL431BIPK is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits. The company is well-known for its innovation in the field of electronics and is one of the largest semiconductor companies in the world. TI provides a broad portfolio of products, including analog electronics, embedded processors, and digital light processing technology, which are used in a wide range of applications across various industries, including automotive, industrial, consumer electronics, and communications. The company is headquartered in Dallas, Texas, and is recognized for its focus on research and development, leading to numerous advancements and contributions to the semiconductor industry.

Application

The TL431BIPK is a precision programmable voltage reference used in various applications. Key areas include:
1. Voltage Regulation: Used in power supply circuits to maintain a stable output voltage.
2. Adjustable Voltage References: Provides reference voltages in A/D and D/A converters.
3. Shunt Regulators: Acts as a shunt regulator in voltage regulator circuits.
4. Switching Power Supplies: Enhances stability and precision in SMPS.
5. Battery Chargers: Ensures precise charging voltage levels.
6. Instrumentation: Offers stable voltage references for measurement equipment.
7. LED Drivers: Maintains consistent brightness levels by regulating voltage.
These applications leverage its stability, precision, and programmability features.

Package

The TL431BIPK is a precision programmable voltage reference in a TO-92 package. The TO-92 is a type of transistor outline package commonly used for small and simple components such as transistors and voltage references. The TL431BIPK offers adjustable output voltage and is typically used in voltage regulation and reference applications.

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