Overview
The TL431ILPRA, produced by onsemi, is a three-terminal adjustable shunt voltage regulator. This device is part of the TL431 series, known for its high precision and stability over a wide temperature range. The TL431ILPRA is specifically designed for applications requiring adjustable output voltages between 2.5V and 36V. It is widely used in various industries, including automotive, industrial, and commercial sectors, due to its robust performance and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Input Voltage (Vref) | 2.44 - 2.495 | V |
| Adjustable Output Voltage | 2.5 to 36 | V |
| Sink Current Capability | 1 to 100 | mA |
| Typical Output Impedance | 0.22 | Ω |
| Operating Temperature Range | -40 to +125 | °C |
| Package Type | TO-92 (LP) | |
| Number of Pins | 3 | |
| Voltage Precision (TL431B version) | 0.5% | |
| Voltage Precision (TL431A and Standard versions) | 1%, 2% |
Key Features
- Adjustable Output Voltage: The output voltage can be set to any value between 2.5V and 36V using two external resistors.
- High Precision: Available in different precision grades, including 0.5%, 1%, and 2% initial tolerances at 25°C.
- Low Output Noise: Features low output noise, making it suitable for applications requiring stable voltage references.
- Wide Operating Temperature Range: Operates from -40°C to +125°C, making it suitable for automotive and industrial applications.
- Low Output Impedance: Typical output impedance of 0.22Ω.
- Sink Current Capability: Can sink currents from 1mA to 100mA.
- AEC-Q100 Qualified: Qualified for automotive applications, ensuring reliability and performance under harsh conditions.
Applications
- Power Supplies: Used in adjustable power supplies and switching power supplies.
- On-Board Regulation: Suitable for on-board voltage regulation in various electronic systems.
- Automotive Systems: Used in automotive systems due to its AEC-Q100 qualification and wide operating temperature range.
- Industrial Systems: Applied in industrial control systems and equipment requiring stable voltage references.
Q & A
- What is the adjustable output voltage range of the TL431ILPRA?
The output voltage can be set to any value between 2.5V and 36V using two external resistors.
- What are the different precision grades available for the TL431 series?
The TL431 series is available in 0.5%, 1%, and 2% initial tolerance grades at 25°C.
- What is the typical output impedance of the TL431ILPRA?
The typical output impedance is 0.22Ω.
- What is the operating temperature range of the TL431ILPRA?
The device operates from -40°C to +125°C.
- Is the TL431ILPRA AEC-Q100 qualified?
- What is the sink current capability of the TL431ILPRA?
The device can sink currents from 1mA to 100mA.
- What package type is the TL431ILPRA available in?
The TL431ILPRA is available in the TO-92 (LP) package.
- What are some common applications of the TL431ILPRA?
Common applications include power supplies, on-board regulation, automotive systems, and industrial control systems.
- How does the TL431ILPRA compare to Zener diodes in terms of performance?
The TL431ILPRA offers better stability and a sharper turn-on characteristic compared to Zener diodes, making it an excellent replacement in many applications.
- What is the reference input voltage (Vref) of the TL431ILPRA?
The reference input voltage (Vref) is approximately 2.5V.
