Texas Instruments

TL431AILPR

The Texas Instruments TL431AILPR is a precision programmable shunt regulator that provides excellent load regulation and transient response. It is available in a compact SOT-23 package, making it suitable for a wide range of applications.

Description:

The TL431AILPR is a programmable shunt regulator that can be used to regulate the output voltage of a power supply. It operates by sensing the voltage across a shunt resistor and comparing it to an internal reference voltage. The output voltage is then adjusted to maintain a constant voltage across the shunt resistor.

Features:

• High precision: The TL431AILPR has an accuracy of ±1% over temperature and line variations.
• Low dropout voltage: The dropout voltage is typically only 2.5V, which makes it suitable for low voltage applications.
• Wide input voltage range: The TL431AILPR can operate with input voltages from 4V to 35V.
• Adjustable output voltage: The output voltage can be easily adjusted using an external resistor network.
• Short circuit protection: The TL431AILPR has built-in protection against short circuit conditions.
• Thermal shutdown: The device will shut down if the temperature exceeds a safe operating limit.

Applications:

The TL431AILPR is commonly used in a variety of power supply applications, including:

1. Linear voltage regulators
2. Switching voltage regulators
3. Battery chargers
4. LED drivers
5. Motor controllers
6. Power factor correction circuits

In summary, the Texas Instruments TL431AILPR is a versatile and reliable programmable shunt regulator that offers high precision and excellent load regulation. Its compact size and wide input voltage range make it suitable for a variety of applications in the power supply industry.