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TL431ACPK
+NomenclatureIC VREF SHUNT ADJ 1% SOT89-3
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FabricantTexas Instruments
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Pièce fabricant #TL431ACPK
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Package SOT-89 (PK)-3
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En stock2755
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| 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-243AA |
Présentation
Description
Key features include a low output voltage tolerance of ±0.5%, good thermal stability, and a fast response time, which enhances its performance in dynamic applications. The device can sink up to 100 mA of current, making it versatile for various load conditions. It is available in different package options, including SOT-23, which is suitable for compact circuit designs. The precision and reliability of the TL431ACPK make it a popular choice for designers requiring accurate voltage regulation and reference in their circuits.
Equivalent
Features
1. Adjustable Output Voltage: It offers an adjustable output voltage range from 2.495 V to 36 V, making it versatile for various applications.
2. Precision: It provides a tight voltage tolerance of ±0.5%, ensuring accuracy and reliability.
3. Sink Current Capability: The device can handle a sink current range of 1 mA to 100 mA, allowing for flexibility in different circuit designs.
4. Temperature Stability: With a temperature coefficient typically around 50 ppm/°C, it maintains stable performance across a wide temperature range.
5. Low Output Noise: It features low output noise characteristics, which is beneficial for sensitive applications.
6. Wide Operating Temperature Range: The TL431ACPK operates effectively from -40°C to +125°C, suitable for industrial and consumer applications.
7. Package Options: Available in a variety of packages, including TO-92, SOT-23, and SOIC, to accommodate different design constraints.
These features make the TL431ACPK ideal for use in power supplies, battery chargers, and other applications where precise voltage regulation is required.
Pinout
1. Reference (Ref): This pin is used to set the reference voltage by connecting it to a resistive divider network. It allows the device to regulate the output voltage.
2. Anode (A): This pin is connected to the lower potential side of the load circuit. It is the terminal where the current flows out from the device.
3. Cathode (K): This pin serves as the output of the device where the regulated voltage is maintained. Current flows into the device through this pin.
The TL431ACPK functions as an adjustable voltage reference over a range of about 2.5V to 36V, making it suitable for a variety of applications, including power supplies and adjustable regulators. It achieves precise voltage regulation with a typical tolerance of about ±0.5%.
Manufacturer
Application
1. Voltage Regulation: It's used in power supplies for precise voltage regulation.
2. Shunt Regulator: Functions as a shunt regulator in low-current applications.
3. Switching Power Supplies: Employed for feedback control in isolated switching power supplies.
4. Battery Chargers: Ensures accurate charging voltage in battery management systems.
5. Data Acquisition Systems: Provides stable reference voltage for ADCs.
6. Overvoltage Protection: Protects circuits by maintaining a stable reference point.
7. LED Drivers: Used for maintaining consistent LED brightness.
These applications leverage its ability to maintain a stable reference over varying conditions.