ON Semiconductor TLV431ASN - Precision Shunt Voltage Reference

The TLV431ASN from ON Semiconductor is a precision low-voltage shunt voltage reference that offers the performance of a zener diode with the precision voltage reference capabilities of a bandgap circuit. This semiconductor device is a three-terminal adjustable shunt regulator with specified thermal stability over a full operating temperature range. It is an ideal choice for precision voltage regulation in a wide array of applications, including power supplies, battery-operated devices, and instrumentation systems.

Designed with a low output voltage range of 1.24V to 16V, the TLV431ASN features a typical output impedance of 0.5 ohms. A key attribute of this product is its low dynamic impedance and excellent temperature stability, which ensure reliable operation under varying conditions. The device is capable of sinking currents between 1 mA to 100 mA, making it versatile for different current requirements.

The TLV431ASN comes in a small outline transistor (SOT-23) package, making it suitable for space-constrained applications. Its small footprint does not compromise its performance, as it boasts a low temperature coefficient and a tight voltage tolerance. This voltage reference is also characterized by its fast turn-on response and a trimmable output voltage, which allows for customization to specific circuit requirements.

Applications for the TLV431ASN are diverse and include portable electronics, where power efficiency is crucial, and adjustable voltage references in power supplies or isolated feedback circuits for power converters. It is also commonly used in notebook computers, automotive electronics, and other systems where precise voltage control is required.

ON Semiconductor's commitment to high-quality components is evident in the TLV431ASN, which is designed to meet stringent industry standards for performance and reliability. Its combination of low power consumption, high accuracy, and ease of use make it an excellent choice for designers looking for a dependable voltage reference solution.

For detailed specifications, application circuits, and additional information, designers are encouraged to refer to the official datasheet provided by ON Semiconductor.