Overview
The TL431AIL3T is an adjustable micropower shunt voltage reference produced by STMicroelectronics. This device is part of the TL431 and TL432 series, known for their guaranteed temperature stability over the entire operating temperature range. The TL431AIL3T is particularly suited for applications requiring a high degree of voltage precision and stability.
The device can operate in a wide temperature range, with the automotive version extending from -40 °C to +125 °C. The output voltage can be adjusted to any value between 2.5 and 36 V using two external resistors, making it highly versatile for various power management and voltage regulation tasks.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Adjustable Output Voltage | 2.5 to 36 | V |
| Sink Current Capability | 1 to 100 | mA |
| Typical Output Impedance | 0.22 | Ω |
| Voltage Precision | ±1% (TL431AIL3T) | % |
| Operating Temperature Range | -40 to +125 | °C (Automotive version) |
| Package Type | SOT23 | - |
| Cathode to Anode Voltage | 37 | V |
| Thermal Resistance Junction to Ambient | 248 | °C/W (SOT23-3L) |
| Storage Temperature Range | -65 to +150 | °C |
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%, ±1%, and ±2% depending on the version.
- Extended temperature range for automotive versions: -40 °C to +125 °C.
Applications
- Power supplies: The TL431AIL3T is ideal for voltage regulation in power supply circuits due to its adjustable output voltage and high temperature stability.
- Industrial applications: Suitable for various industrial environments requiring precise voltage references.
- Automotive applications: AEC-Q100 qualified, making it reliable for use in automotive systems.
Q & A
- What is the adjustable output voltage range of the TL431AIL3T?
The output voltage can be adjusted to any value between 2.5 and 36 V using two external resistors.
- What is the sink current capability of the TL431AIL3T?
The device can sink current in the range of 1 to 100 mA.
- What is the typical output impedance of the TL431AIL3T?
The typical output impedance is 0.22 Ω.
- What are the voltage precision options for the TL431AIL3T?
Voltage precision options include ±0.5%, ±1%, and ±2% depending on the version.
- What is the operating temperature range for the automotive version of the TL431AIL3T?
The operating temperature range for the automotive version is -40 °C to +125 °C.
- Is the TL431AIL3T AEC-Q100 qualified?
- What package type is the TL431AIL3T available in?
The TL431AIL3T is available in the SOT23 package type.
- What is the maximum cathode to anode voltage for the TL431AIL3T?
The maximum cathode to anode voltage is 37 V.
- What is the storage temperature range for the TL431AIL3T?
The storage temperature range is -65 to +150 °C.
- In what types of applications is the TL431AIL3T commonly used?
The TL431AIL3T is commonly used in power supplies, industrial applications, and automotive systems.
