Overview
The TL431IZ, manufactured by STMicroelectronics, is an adjustable shunt voltage reference known for its high performance, temperature stability, and versatility. This component is part of the TL431 series, which is widely used in various applications due to its adjustable output voltage and robust operating characteristics. The TL431IZ is particularly suited for automotive and industrial environments, where reliability and precision are crucial.
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%, 2% (depending on version) | % |
| Operating Temperature Range | -40 to +125 | °C |
| Package Types | SOT23-3, SO-8, TO-92, etc. | |
| Pin Count | 3 |
Key Features
- AEC-Q100 Qualified: Ensures the component meets rigorous automotive standards for reliability and durability.
- Adjustable Output Voltage: Can be set to any value between 2.5 and 36 V using two external resistors.
- Wide Current Range: Operates with a current range from 1 to 100 mA.
- Low Output Impedance: Typical output impedance of 0.22 Ω, ensuring stable voltage regulation.
- Precision Voltage Regulation: Available with 1% and 2% voltage precision options, depending on the version.
- Extended Temperature Range: Operates from -40°C to +125°C, making it suitable for extreme environmental conditions.
Applications
- Power Supplies: Used in precision switching power supplies, linear regulated power supplies, and power supply monitors.
- Automotive Systems: Extensively used in automotive electronics such as Engine Control Units (ECUs), electric power steering systems, and battery management systems.
- Industrial Systems: Utilized in motor control, sensor interfacing, and industrial automation systems.
- Voltage Comparators and Delay Circuits: Suitable for applications requiring precise voltage references and timing.
- Constant Current Sources and Battery Chargers: Effective in applications needing stable current regulation.
Q & A
- What is the output voltage range of the TL431IZ?
The output voltage range of the TL431IZ is from 2.5 to 36 V, adjustable via two external resistors.
- What is the sink current capability of the TL431IZ?
The TL431IZ can sink current in the range of 1 to 100 mA.
- What is the typical output impedance of the TL431IZ?
The typical output impedance of the TL431IZ is 0.22 Ω.
- What are the voltage precision options available for the TL431IZ?
The TL431IZ is available with 1% and 2% voltage precision options, depending on the version.
- What is the operating temperature range of the TL431IZ?
The operating temperature range of the TL431IZ is from -40°C to +125°C.
- Is the TL431IZ AEC-Q100 qualified?
Yes, the TL431IZ is AEC-Q100 qualified, ensuring it meets rigorous automotive standards.
- What are some common applications of the TL431IZ?
The TL431IZ is commonly used in power supplies, automotive systems, industrial systems, voltage comparators, delay circuits, and constant current sources.
- How do you adjust the output voltage of the TL431IZ?
The output voltage of the TL431IZ can be adjusted by using two external resistors connected to the reference pin.
- What is the significance of low output impedance in the TL431IZ?
The low output impedance of 0.22 Ω ensures minimal resistance at the output, contributing to stable and precise voltage regulation.
- Can the TL431IZ be used in extreme environmental conditions?
Yes, the TL431IZ can operate efficiently in extreme environmental conditions due to its extended temperature range from -40°C to +125°C.
