規格
| 屬性 | 價值 |
| 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 | 700 µA |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | TO-243AA |
概述
Description
The TL431AQPK is a precision programmable voltage reference device commonly used in electronic circuits for voltage regulation and control. It operates as a shunt regulator, providing a stable reference voltage which can be adjusted to a desired level using external resistors. The "AQ" designation typically signifies a higher precision version of the TL431 series, suitable for applications requiring tighter voltage tolerance and stability.
Key features of the TL431AQPK include a wide operating voltage range, typically from 2.5V to 36V, and a reference voltage tolerance of around ±0.5% or better, depending on the exact specification. It is capable of sinking currents up to 100 mA, making it suitable for a variety of applications such as power supplies, voltage monitoring, and adjustable regulators. The device is packaged commonly in TO-92, SOT-23, or similar configurations, allowing for easy integration into compact designs.
Its reliability and precision make the TL431AQPK a popular choice in consumer electronics, industrial controls, and communication equipment.
Key features of the TL431AQPK include a wide operating voltage range, typically from 2.5V to 36V, and a reference voltage tolerance of around ±0.5% or better, depending on the exact specification. It is capable of sinking currents up to 100 mA, making it suitable for a variety of applications such as power supplies, voltage monitoring, and adjustable regulators. The device is packaged commonly in TO-92, SOT-23, or similar configurations, allowing for easy integration into compact designs.
Its reliability and precision make the TL431AQPK a popular choice in consumer electronics, industrial controls, and communication equipment.
Equivalent
The TL431AQPK is a precision programmable voltage reference. Equivalent products include the LM431, LMV431, and TLVH431 from Texas Instruments, the KA431 from ON Semiconductor, the AZ431 from Diodes Incorporated, and the NCP431 from ON Semiconductor. These alternatives offer similar functionality and can be used as substitutes in various applications. Always check datasheets for specific electrical characteristics to ensure compatibility with your design requirements.
Features
The TL431AQPK is a precision programmable shunt voltage reference. Key features include:
1. Reference Voltage: It provides a stable reference voltage with options typically around 2.495 V.
2. Adjustable Output: The output voltage can be adjusted over a wide range, approximately 2.5 V to 36 V.
3. Accuracy: It offers high accuracy with tight voltage tolerance options, often available in 0.5% or 1% accuracy grades.
4. Temperature Range: It operates over a wide temperature range, typically from -40°C to 125°C, making it suitable for various environments.
5. Low Dynamic Impedance: The device features low dynamic impedance, which ensures stable operation under varying load conditions.
6. Applications: It is commonly used in voltage regulation, power supply monitoring, precision current limiting, and various feedback circuits.
7. Package Options: Available in various package forms, including SOT-23, to suit different design needs.
The TL431AQPK is valued for its versatility and precision in maintaining a stable reference voltage in electronic circuits.
1. Reference Voltage: It provides a stable reference voltage with options typically around 2.495 V.
2. Adjustable Output: The output voltage can be adjusted over a wide range, approximately 2.5 V to 36 V.
3. Accuracy: It offers high accuracy with tight voltage tolerance options, often available in 0.5% or 1% accuracy grades.
4. Temperature Range: It operates over a wide temperature range, typically from -40°C to 125°C, making it suitable for various environments.
5. Low Dynamic Impedance: The device features low dynamic impedance, which ensures stable operation under varying load conditions.
6. Applications: It is commonly used in voltage regulation, power supply monitoring, precision current limiting, and various feedback circuits.
7. Package Options: Available in various package forms, including SOT-23, to suit different design needs.
The TL431AQPK is valued for its versatility and precision in maintaining a stable reference voltage in electronic circuits.
Pinout
The TL431AQPK is a three-terminal adjustable precision shunt regulator. It typically comes in a TO-92 package, which is a commonly used form factor for such components. The device has three pins:
1. Reference (Ref): This pin is used to set the reference voltage. By connecting this pin to a voltage divider, the output voltage can be adjusted.
2. Anode (A): This is the pin through which the current flows out of the device. It is connected to the ground or the return path in typical applications.
3. Cathode (K): This pin is connected to the load and is the terminal through which the current flows into the device when it is in the regulating mode.
The TL431AQPK functions as a programmable zener diode with thermal stability, allowing for precise voltage regulation in a variety of electronic circuits, such as power supplies and LED drivers.
1. Reference (Ref): This pin is used to set the reference voltage. By connecting this pin to a voltage divider, the output voltage can be adjusted.
2. Anode (A): This is the pin through which the current flows out of the device. It is connected to the ground or the return path in typical applications.
3. Cathode (K): This pin is connected to the load and is the terminal through which the current flows into the device when it is in the regulating mode.
The TL431AQPK functions as a programmable zener diode with thermal stability, allowing for precise voltage regulation in a variety of electronic circuits, such as power supplies and LED drivers.
Manufacturer
The TL431AQPK is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. It is one of the largest semiconductor companies in the world and is known for its innovation in analog and embedded processing products. TI's products are used in a wide range of applications, including industrial, automotive, personal electronics, and communications equipment. The company is headquartered in Dallas, Texas, and has a strong reputation for quality and reliability in the semiconductor industry.
Application
The TL431AQPK is a precision programmable shunt voltage reference widely used in various applications. Key areas include:
1. Voltage Regulation: Acts as a reference in linear regulators and switching power supplies to ensure stable output voltage.
2. Overvoltage Protection: Helps in detecting and managing overvoltage conditions in electronic circuits.
3. Switching Power Supplies: Used for feedback control to maintain output accuracy.
4. Battery Management Systems: Ensures accurate voltage reference for charge controllers.
5. Data Acquisition Systems: Provides stable voltage reference for ADCs and DACs.
6. Analog-to-Digital Converters (ADCs): Serves as a precision reference voltage source.
Its versatility, accuracy, and temperature stability make it suitable for general purpose and precision applications.
1. Voltage Regulation: Acts as a reference in linear regulators and switching power supplies to ensure stable output voltage.
2. Overvoltage Protection: Helps in detecting and managing overvoltage conditions in electronic circuits.
3. Switching Power Supplies: Used for feedback control to maintain output accuracy.
4. Battery Management Systems: Ensures accurate voltage reference for charge controllers.
5. Data Acquisition Systems: Provides stable voltage reference for ADCs and DACs.
6. Analog-to-Digital Converters (ADCs): Serves as a precision reference voltage source.
Its versatility, accuracy, and temperature stability make it suitable for general purpose and precision applications.
Package
The TL431AQPK is a programmable precision shunt regulator, and it typically comes in a SOT-89 package. This package type is a small outline transistor package, which is commonly used for surface mounting on circuit boards.
