The TL431AIU148H is a precision adjustable shunt regulator manufactured by Vishay. It is a three-terminal adjustable regulator offering excellent temperature stability and high accuracy. The device functions as a low-temperature-coefficient zener with a sharp turn-on characteristic.
Applications:
- Voltage Monitoring: Over-voltage and under-voltage detection circuits.
- Precision Current Sources: Used in constant current regulators and LED drivers.
- Error Amplifiers: Employed in switching power supplies and linear regulators.
- Shunt Regulators: Provides stable voltage reference in various electronic circuits.
- Comparator Applications: Used as a comparator with adjustable threshold.
Features:
- Programmable Output Voltage: Adjustable output voltage via external resistors.
- Wide Operating Current Range: Suitable for various current requirements.
- Low Temperature Coefficient: Provides stable performance across temperature variations.
- Low Dynamic Output Impedance: Ensures stable output voltage under varying load conditions.
- Sink Current Capability: Capable of sinking current, making it versatile for various applications.
- Precision Reference: Provides a highly accurate voltage reference.
Benefits:
- High Accuracy: Ensures precise voltage regulation and monitoring.
- Stable Performance: Low temperature coefficient guarantees consistent performance.
- Versatile: Suitable for a wide range of applications due to adjustable output voltage and sink current capability.
- Cost-Effective: Provides a low-cost solution for voltage regulation and monitoring.
- Simplified Design: Reduces component count and simplifies circuit design.
Technical Specifications:
- Reference Voltage: 2.5 V (typical)
- Adjustable Output Voltage Range: Vref to 36 V
- Operating Cathode Current: 1 mA to 100 mA
- Temperature Coefficient: Typically 14 ppm/°C
- Operating Temperature Range: -40°C to +125°C
- Package Type: SOT-23
The TL431AIU148H is a highly versatile and accurate adjustable shunt regulator ideal for applications requiring stable and precise voltage regulation and monitoring. Its programmability and excellent temperature stability make it suitable for a wide range of electronic circuits.