Overview
The TL431LIACDBZR is a three-terminal adjustable shunt regulator produced by Texas Instruments. This device is part of the TL431 family, known for its high precision and adjustable output voltage. It is designed to provide a stable reference voltage, making it an excellent replacement for Zener diodes in various applications. The TL431LIACDBZR operates over a wide temperature range and offers low output drift, ensuring good stability across different environmental conditions.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TL431LIACDBZR |
| Package | SOT-23 (DBZ) |
| Reference Voltage Tolerance at 25°C | 0.5% (B Grade), 1% (A Grade) |
| Adjustable Output Voltage | 2.495 V to 36 V |
| Operating Temperature Range | -40°C to 125°C |
| Typical Output Impedance | 0.3 Ω |
| Sink-Current Capability | 1 mA to 100 mA |
| Reference Input Current (IREF) | 0.4 µA (max) |
| Temperature Drift | 10 mV (C Temp), 17 mV (I Temp), 27 mV (Q Temp) |
Key Features
- Adjustable output voltage from 2.495 V to 36 V using two external resistors.
- High precision with reference voltage tolerances of 0.5% and 1% at 25°C.
- Low output drift over temperature, ensuring good stability.
- Typical output impedance of 0.3 Ω.
- Sink-current capability from 1 mA to 100 mA.
- Low reference input current (IREF) of 0.4 µA (max).
- Active output circuitry with a sharp turn-on characteristic.
- Operates from -40°C to 125°C, making it suitable for automotive, commercial, and military applications.
Applications
- On-board regulation.
- Adjustable power supplies.
- Switching power supplies.
- Replacement for Zener diodes in various circuits.
- Automotive, commercial, and military electronics due to its wide temperature range and high stability.
Q & A
- What is the TL431LIACDBZR used for?
The TL431LIACDBZR is used as a three-terminal adjustable shunt regulator, providing a stable reference voltage in various applications. - What is the adjustable output voltage range of the TL431LIACDBZR?
The output voltage can be adjusted from 2.495 V to 36 V using two external resistors. - What are the reference voltage tolerances available for the TL431LIACDBZR?
The device is available with reference voltage tolerances of 0.5% and 1% at 25°C. - What is the operating temperature range of the TL431LIACDBZR?
The device operates from -40°C to 125°C. - What is the typical output impedance of the TL431LIACDBZR?
The typical output impedance is 0.3 Ω. - What is the sink-current capability of the TL431LIACDBZR?
The sink-current capability ranges from 1 mA to 100 mA. - What are some common applications of the TL431LIACDBZR?
Common applications include on-board regulation, adjustable power supplies, switching power supplies, and replacing Zener diodes. - Is the TL431LIACDBZR suitable for automotive applications?
Yes, it is suitable for automotive, commercial, and military applications due to its wide temperature range and high stability. - What is the package type of the TL431LIACDBZR?
The device is packaged in a SOT-23 (DBZ) package. - How does the TL431LIACDBZR compare to Zener diodes?
The TL431LIACDBZR offers higher precision and stability compared to Zener diodes, with active output circuitry providing a sharp turn-on characteristic.
