STMicroelectronics

TL431AICT

The TL431AICT is a precision programmable shunt regulator manufactured by STMicroelectronics. It is designed to provide a stable reference voltage and current limit in a variety of applications.

Description:

The TL431AICT is a three-terminal adjustable shunt regulator that operates over a wide input voltage range. It features a precision 2.5V reference voltage and a programmable shunt current limit that can be adjusted using an external resistor. The device also includes a thermal shutdown protection circuit to prevent damage in the event of an overload.

Features:

• Precision 2.5V reference voltage
• Programmable shunt current limit
• Wide input voltage range (4V to 37V)
• Thermal shutdown protection
• Short circuit protection
• Low dropout voltage
• High accuracy and stability over temperature and line regulation
• Available in a compact SOT-23 package

Applications:

The TL431AICT is commonly used in a variety of applications where a stable reference voltage and current limit are required. Some common applications include:

1. LED current limiting and brightness control
2. Battery charging and power supply regulation
3. Precision voltage references for measurement and control circuits
4. Motor speed control and current limiting
5. Power management in portable and battery-powered devices

Overall, the TL431AICT is a versatile and reliable shunt regulator that offers high accuracy and stability in a compact package. Its wide input voltage range and thermal shutdown protection make it suitable for a variety of applications where precise voltage and current regulation are required.