TL431AFDT,215

The TL431AFDT,215 is a precision voltage reference and adjustable shunt regulator manufactured by Nexperia. It is designed for a variety of applications, including power management, voltage regulation, and signal conditioning. Here’s a detailed description of its features and specifications:

General Description:

The TL431AFDT,215 is a three-terminal adjustable shunt regulator that can be used to provide a stable reference voltage. It operates similarly to a Zener diode but offers better performance in terms of temperature stability and accuracy. The device can be configured to output a voltage ranging from 1.24V to 36V, making it versatile for different applications.

Key Features:

• Adjustable Output Voltage: The output voltage can be set using external resistors, allowing for flexibility in design.
• High Accuracy: The device typically features a reference voltage accuracy of ±1% at 25°C, ensuring reliable performance in precision applications.
• Temperature Stability: The TL431AFDT,215 has a low temperature coefficient, which helps maintain output voltage stability across varying temperatures.
• Wide Operating Range: It can operate over a wide input voltage range, typically from 2.5V to 36V, making it suitable for various power supply designs.
• Low Output Impedance: The device exhibits low output impedance, which helps maintain stable output voltage under varying load conditions.
• Fast Response Time: The TL431AFDT,215 has a fast response time to changes in load or input voltage, making it ideal for dynamic applications.

Package Information:

The TL431AFDT,215 is available in a compact SOT23-3 package, which is suitable for surface-mount technology (SMT). This small form factor allows for efficient use of board space in modern electronic designs.

Applications:

• Power Supply Circuits: Used as a voltage reference in switching power supplies and linear regulators.
• Battery Management Systems: Provides voltage regulation and monitoring in battery-operated devices.
• Signal Conditioning: Acts as a reference voltage in analog circuits for signal processing.
• LED Drivers: Used in constant current applications for driving LEDs.

Electrical Characteristics:

• Reference Voltage (Vref): 1.24V (typical)
• Reference Voltage Temperature Coefficient: ±50 mV/°C (max)
• Output Current (Iout): Up to 100 mA
• Supply Current (Iref): Typically around 1 mA
• Operating Temperature Range: -40°C to +125°C

Conclusion:

The TL431AFDT,215 from Nexperia is a highly versatile and reliable component for voltage regulation and reference applications. Its adjustable output, high accuracy, and compact package make it an excellent choice for engineers looking to design efficient and precise electronic circuits.