ON Semiconductor TL431BIDR2G - Adjustable Precision Shunt Regulator

The TL431BIDR2G from ON Semiconductor is a three-terminal adjustable precision shunt regulator with specified thermal stability over applicable automotive, commercial, and military temperature ranges. This versatile device acts as a voltage reference or regulator and is an ideal upgrade for zener diodes in a multitude of applications that require a precise voltage reference.

Key Features:

• Voltage Range: The output voltage can be set to any value between Vref (approximately 2.5 volts) and 36 volts with two external resistors.
• High Accuracy: It features a typical output impedance of 0.2 ohms and a reference voltage tolerance of ±0.5% at 25°C, and ±1% over the full operating temperature range.
• Low Operational Current: The TL431BIDR2G operates with a typical dynamic impedance and a low cathode current requirement of 1.0 mA to 100 mA, making it an efficient choice for low power applications.
• Temperature Compensated: For devices with improved specifications, the TL431BIDR2G offers full operation over an extended temperature range of -40°C to +125°C, ensuring reliable performance in a wide range of environments.
• Package: This device is offered in a surface-mount package, specifically in an 8-lead SOIC, providing a compact footprint for space-constrained applications.
• Applications: It is widely used in power supplies, battery chargers, and as a replacement for zener diodes in many applications due to its improved output accuracy.

Applications:

The TL431BIDR2G is a versatile component suitable for a variety of applications such as:

• Adjustable power supplies
• Switching power supplies
• Linear regulators
• Window comparators
• Battery chargers
• Automotive electronics
• Voltage monitoring

With its precision voltage regulation capabilities and high stability, the TL431BIDR2G is a reliable and flexible solution for designers looking to improve their power management systems.