Overview
The TL431CL3T is an adjustable shunt voltage reference produced by STMicroelectronics. It is part of the TL431 series, known for its guaranteed temperature stability over the entire operating temperature range. This device allows for the output voltage to be set to any value between 2.5 and 36 V using two external resistors. The TL431CL3T is particularly useful in applications requiring precise voltage regulation and is available in the SOT23-3 package, making it suitable for space-constrained designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage Range | 2.5 to 36 | V |
| Sink Current Capability | 1 to 100 | mA |
| Typical Output Impedance | 0.22 | Ω |
| Voltage Precision | ±2% (TL431CL3T) | % |
| Operating Temperature Range | -40 to +125 | °C |
| Package Type | SOT23-3 | |
| AEC-Q100 Qualification | Yes |
Key Features
- AEC-Q100 qualified, ensuring reliability for automotive applications.
- Adjustable output voltage from 2.5 to 36 V using two external resistors.
- Sink current capability from 1 to 100 mA.
- Typical output impedance of 0.22 Ω.
- Voltage precision options: 0.5% (TL431B version), 1%, and 2%.
- Extended operating temperature range for automotive versions: -40 °C to +125 °C.
Applications
- Power supply systems requiring adjustable voltage references.
- Industrial control systems where precise voltage regulation is necessary.
- Automotive systems, including those requiring high temperature stability.
- General-purpose voltage regulation in various electronic circuits.
Q & A
- What is the output voltage range of the TL431CL3T?
The output voltage can be set to any value between 2.5 and 36 V using two external resistors.
- What is the sink current capability of the TL431CL3T?
The device can sink current in the range of 1 to 100 mA.
- What is the typical output impedance of the TL431CL3T?
The typical output impedance is 0.22 Ω.
- What is the voltage precision of the TL431CL3T?
The TL431CL3T has a voltage precision of ±2%.
- What is the operating temperature range of the TL431CL3T?
The operating temperature range is -40 °C to +125 °C for automotive versions.
- Is the TL431CL3T AEC-Q100 qualified?
Yes, the TL431CL3T is AEC-Q100 qualified, making it suitable for automotive applications.
- In what package type is the TL431CL3T available?
The TL431CL3T is available in the SOT23-3 package.
- What are some common applications of the TL431CL3T?
Common applications include power supply systems, industrial control systems, automotive systems, and general-purpose voltage regulation.
- How do I set the output voltage of the TL431CL3T?
The output voltage can be set using two external resistors connected to the device.
- What is the thermal resistance junction to ambient for the SOT23-3 package?
The thermal resistance junction to ambient for the SOT23-3 package is approximately 248 °C/W.
