Microsemi

TL431IDM

TL431IDM Description

The TL431IDM is a precision shunt voltage reference IC designed for a wide range of power management applications. Manufactured by Microsemi Corporation, this device offers adjustable output voltage capabilities, making it highly versatile for various electronic circuits. The TL431IDM features an output voltage range from 2.5V to 36V, with a maximum output current of 100 mA. It is housed in a surface-mount package, specifically an 8SOIC, ensuring ease of integration into compact designs. The device is known for its high precision, with a tolerance of ±2% and a typical temperature coefficient of 30ppm/°C, ensuring stable performance across varying temperatures. Despite being marked as obsolete, the TL431IDM remains a reliable choice for applications requiring a stable and precise voltage reference.

TL431IDM Features

• Adjustable Output Voltage: The TL431IDM provides a wide adjustable output voltage range from 2.5V to 36V, making it suitable for a variety of applications that require precise voltage regulation.
• High Precision: With a tolerance of ±2% and a typical temperature coefficient of 30ppm/°C, the TL431IDM ensures stable and accurate voltage reference over a wide temperature range.
• Surface-Mount Package: The 8SOIC package type allows for easy integration into modern, space-constrained designs, facilitating surface-mount assembly processes.
• High Output Current: Capable of delivering up to 100 mA of output current, the TL431IDM can support higher current requirements in voltage regulation circuits.
• Low Cathode Current: The device operates with a low cathode current of 1 mA, which helps in minimizing power consumption and improving overall efficiency.
• Moisture Sensitivity Level (MSL): Rated at MSL 1 (Unlimited), the TL431IDM is suitable for use in environments with varying humidity levels without the need for special handling procedures.
• Compliance: The TL431IDM is REACH unaffected, ensuring compliance with environmental and safety regulations.

TL431IDM Applications

The TL431IDM is ideal for a variety of applications that require precise voltage regulation and reference. Some specific use cases include:

• Power Supplies: Used in linear and switching power supplies to provide a stable reference voltage, ensuring accurate output regulation.
• Battery Chargers: Ideal for battery charger circuits where precise voltage control is necessary to prevent overcharging and ensure safe charging conditions.
• Voltage Regulators: Acts as a reference voltage source in voltage regulator circuits, helping to maintain a consistent output voltage despite input voltage fluctuations.
• Instrumentation: Used in precision measurement instruments where accurate voltage references are crucial for reliable performance.
• Automotive Electronics: Suitable for automotive applications where stable voltage references are required for various electronic control units (ECUs) and sensors.

Conclusion of TL431IDM

The TL431IDM, manufactured by Microsemi Corporation, is a versatile and precise shunt voltage reference IC that offers a wide range of technical benefits. Its adjustable output voltage, high precision, and surface-mount package make it an excellent choice for a variety of power management applications. Despite being marked as obsolete, the TL431IDM remains a reliable and efficient solution for applications requiring stable and accurate voltage references. Its low cathode current and high output current capabilities further enhance its performance, making it a preferred choice in many electronic designs.