The TL431CF is a three-terminal adjustable shunt regulator offering excellent temperature stability and a sharp turn-on characteristic. Manufactured by TAEJIN/HTC Korea, this integrated circuit is widely used in voltage regulation and reference applications.

Applications

• Adjustable Voltage Regulators
• Switching Power Supplies
• Voltage Monitoring
• Overvoltage Protection
• Precision Current Sources

Features

• Programmable Output Voltage
• Low Dynamic Output Impedance
• Excellent Temperature Stability
• Sink Current Capability
• Low Output Noise

Benefits

• Flexibility: Adjustable output voltage allows for customization to meet specific circuit requirements.
• Stable Performance: Excellent temperature stability ensures reliable operation across a wide temperature range.
• Precise Regulation: Low dynamic output impedance provides tight voltage regulation.
• Cost-Effective: Provides a simple and inexpensive solution for voltage regulation and reference applications.
• Versatility: Suitable for a wide range of applications due to its adjustable nature and performance characteristics.

Specifications

The TL431CF features an output voltage that can be programmed to any value between Vref (typically 2.5V) and 36V with two external resistors. It has a typical dynamic output impedance of around 0.2 ohms. The operating temperature range usually spans from -40°C to +85°C. It is available in various package options, including TO-92 and SOIC. It is commonly used in error amplifiers in switching power supplies and as a precision voltage reference in various electronic systems. For detailed specifications, it is essential to refer to the manufacturer's datasheet.