STMicroelectronics TL431CN: Precision Programmable Reference

The TL431CN from STMicroelectronics is a versatile, programmable precision shunt voltage reference IC. This three-terminal adjustable regulator offers excellent temperature stability and output current handling capability, making it a popular choice for precision voltage regulation in a wide array of electronic applications. The TL431CN is commonly used in power supplies, battery chargers, and voltage monitoring circuits, showcasing its flexibility and reliability across different industries.

Key Features

• Adjustable Output Voltage: The TL431CN provides an output voltage that can be set to any value between 2.495 V and 36 V with the use of two external resistors. This feature allows for high precision tuning to meet specific requirements.
• Low Dynamic Output Impedance: With a typical output impedance of 0.2 ohms, the TL431CN ensures stable voltage supply even under varying load conditions.
• Wide Operating Current Range: The device operates with a current range from 1 mA to 100 mA, catering to a broad spectrum of applications and ensuring consistent performance.
• Temperature Compensated: The voltage reference is temperature compensated, which guarantees a minimal deviation in output voltage over the full temperature range of -40°C to +85°C.
• Standard Package: The TL431CN is available in a standard TO-92 package, which is suitable for through-hole mounting, making it easy to integrate into existing designs.

Applications

• Power Supply Control
• Battery Chargers
• Voltage Monitoring
• Adjustable Voltage References
• Switching Power Supplies

With its precision voltage regulation, ease of use, and robust design, the TL431CN from STMicroelectronics is an essential component for engineers looking to create stable and reliable electronic systems. Whether it's for consumer electronics, industrial equipment, or automotive applications, the TL431CN stands out as a trusted solution for adjustable voltage references.