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TL431AQPK
+Lista de MateriaisIC VREF SHUNT ADJ 1% SOT89-3
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FabricanteTexas Instruments
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Peça do Fabricante #TL431AQPK
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Pacote SOT-89-3
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Em Estoque7038
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Especificações
| Atributo | Valor |
| 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 |
Visão Geral
Description
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
Features
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
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
Application
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.