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TL431IDR
+Lista de MateriaisIC VREF SHUNT ADJ 2.2% 8SOIC
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FabricanteTexas Instruments
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Peça do Fabricante #TL431IDR
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Pacote SOIC-8
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Reference Type | Shunt |
| Output Type | Adjustable |
| Voltage - Output (Min/Fixed) | 2.495V |
| Voltage - Output (Max) | 36 V |
| Current - Output | 100 mA |
| Tolerance | ±2.2% |
| Current - Cathode | 1 mA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features of the TL431IDR include a low-temperature coefficient, ensuring minimal drift in output voltage across temperature variations, and a fast transient response, making it suitable for dynamic load applications. It can handle cathode current from 1 mA to 100 mA, allowing it to be used in both light and heavy-load scenarios.
The TL431IDR comes in a variety of packages, such as SOT-23, and offers tight voltage tolerance, typically ±2%. It's commonly used in power supply circuits, voltage monitoring, and feedback loops in switching power supplies, enhancing the overall performance and reliability of electronic devices.
Equivalent
1. LM431
2. KA431
3. AZ431
4. TL432
5. AS431
6. LMV431
7. TLVH431
These components have similar voltage reference and regulation characteristics, making them suitable substitutes in most applications where the TL431IDR is used. Always check datasheets for specific electrical characteristics and pin configurations to ensure compatibility.
Features
1. Adjustable Output Voltage: The output voltage can be set to any value between 2.5 V and 36 V using two external resistors, making it versatile for various applications.
2. Accuracy: It offers precise voltage regulation with typical initial accuracy of 0.5%, ensuring stable performance.
3. Operating Current: It operates with a low cathode current ranging from 1 mA to 100 mA, suitable for power-sensitive applications.
4. Temperature Range: The device supports a wide operating temperature range from -40°C to 85°C, allowing it to function in diverse environments.
5. Package: The TL431IDR comes in a standard SOT-23 package, which is compact and suitable for space-constrained designs.
6. Applications: It is commonly used in shunt regulator, error amplifier, and voltage monitoring applications.
These features make the TL431IDR a reliable choice for precision voltage reference needs in various electronic circuits.
Pinout
The TL431IDR comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, but only three of these pins are functionally used for the main operation:
1. Cathode (K): Serves as the output pin where the regulated voltage is maintained.
2. Anode (A): Connected to the ground or negative side of the reference voltage.
3. Reference (R): Used to set the desired output voltage by connecting it to a resistor divider network.
These three pins allow the TL431IDR to adjust and regulate the output voltage by controlling the current flowing through the device, making it versatile for precision voltage regulation tasks.