Overview
The TL431IZT 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 TL431IZT is particularly suited for applications requiring high precision and reliability, including automotive, industrial, and power supply systems. It offers adjustable output voltage, wide current range, and low dynamic impedance, making it a versatile component for various voltage regulation needs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Reference Input Voltage (Vref) | 2.44 | 2.495 | 2.55 | V |
| Adjustable Output Voltage | 2.5 | - | 36 | V |
| Sink Current Capability (Ik) | 1 | - | 100 | mA |
| Typical Output Impedance | - | 0.22 | 0.5 | Ω |
| Operating Temperature Range | -40 | - | 105 | °C |
| Voltage Precision | - | - | 0.5%, 1%, 2% | - |
Key Features
- AEC-Q100 qualified 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%
- Extended operating temperature range for automotive versions: -40 °C to +125 °C
Applications
- Power supply systems
- Industrial control systems
- Automotive systems requiring high reliability and temperature stability
- Voltage regulation in various electronic devices
Q & A
- What is the adjustable output voltage range of the TL431IZT?
The TL431IZT can have its output voltage adjusted to any value between 2.5 and 36 V using two external resistors.
- What is the sink current capability of the TL431IZT?
The TL431IZT can sink current in the range of 1 to 100 mA.
- What is the typical output impedance of the TL431IZT?
The typical output impedance of the TL431IZT is 0.22 Ω.
- What are the voltage precision options for the TL431IZT?
The TL431IZT is available with voltage precision options of 0.5%, 1%, and 2%.
- What is the operating temperature range for the TL431IZT?
The operating temperature range for the TL431IZT is -40 °C to +105 °C.
- Is the TL431IZT AEC-Q100 qualified?
Yes, the TL431IZT is AEC-Q100 qualified, making it suitable for automotive applications.
- What types of applications is the TL431IZT typically used in?
The TL431IZT is typically used in power supply systems, industrial control systems, and automotive systems.
- How do you adjust the output voltage of the TL431IZT?
The output voltage of the TL431IZT can be adjusted using two external resistors.
- What is the dynamic impedance of the TL431IZT?
The dynamic impedance of the TL431IZT is typically 0.22 Ω.
- Is the TL431IZT suitable for high-temperature environments?
Yes, the TL431IZT is designed to operate in a wide temperature range, including high-temperature environments up to +105 °C.
