Overview
The TL431IL3T is an adjustable micropower shunt voltage reference produced by STMicroelectronics. This device is part of the TL431 series, known for its guaranteed temperature stability over the entire operating temperature range. The TL431IL3T allows for the output voltage to be set to any value between 2.5 and 36 V using two external resistors, making it highly versatile for various applications.
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 | 1% and 2% (depending on version) | |
| Operating Temperature Range | -40 to +125 | °C (automotive version) |
| Package Type | SOT-23-3 | |
| Cathode to Anode Voltage | 37 | V |
| Reference Input Voltage | 2.44 to 2.495 | V |
Key Features
- AEC-Q100 qualified for automotive applications
- Adjustable output voltage: 2.5 to 36 V
- Sink current capability: 1 to 100 mA
- Typical output impedance: 0.22 Ω
- 0.5% voltage precision available on certain versions (e.g., TL431B)
- 1% and 2% voltage precision on other versions
- Extended temperature range for automotive versions: -40 °C to +125 °C
Applications
The TL431IL3T is suitable for a variety of applications, including:
- Power supply systems
- Industrial control systems
- Automotive systems requiring high temperature stability
Q & A
- What is the output voltage range of the TL431IL3T?
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 TL431IL3T?
The device can sink current in the range of 1 to 100 mA. - What is the typical output impedance of the TL431IL3T?
The typical output impedance is 0.22 Ω. - What are the voltage precision options for the TL431 series?
The voltage precision options include 0.5% (on TL431B version), 1%, and 2%. - What is the operating temperature range for the automotive version of the TL431IL3T?
The operating temperature range for the automotive version is -40 °C to +125 °C. - What package type is the TL431IL3T available in?
The TL431IL3T is available in the SOT-23-3 package type. - What is the maximum cathode to anode voltage for the TL431IL3T?
The maximum cathode to anode voltage is 37 V. - What are some common applications for the TL431IL3T?
Common applications include power supply systems, industrial control systems, and automotive systems. - Is the TL431IL3T AEC-Q100 qualified?
Yes, the TL431IL3T is AEC-Q100 qualified for automotive applications. - What is the reference input voltage range for the TL431IL3T?
The reference input voltage range is typically between 2.44 and 2.495 V.
