Product Overview: TL431LIBQDBZRQ1 - Texas Instruments

The TL431LIBQDBZRQ1 is a precision programmable reference from Texas Instruments, designed to offer a reliable solution for voltage regulation in a wide array of automotive and industrial applications. This versatile three-terminal shunt regulator diode features a guaranteed temperature stability over the entire operating temperature range. Its output voltage can be set to any value between Vref (approximately 2.495 V) and 36 V with two external resistors.

The TL431LIBQDBZRQ1 comes in a small outline transistor (SOT-23) package, making it ideal for space-constrained applications. It is qualified for automotive applications, ensuring it meets the stringent requirements for reliability and performance under harsh conditions. This component is part of Texas Instruments' Quality - Automotive (Q1) series, reflecting its suitability for automotive systems such as engine control units, powertrain systems, and body electronics.

It provides a typical output impedance of 0.2 ohms, a feature that contributes to its stable operation and excellent transient response. The device operates over a current range of 1 to 100 mA, offering a flexible solution for various design needs. Moreover, the TL431LIBQDBZRQ1 boasts a low output noise voltage, which is critical for maintaining signal integrity in sensitive electronic circuits.

This shunt regulator is also characterized by its fast turn-on response, making it an excellent choice for power supply applications where quick startup times are essential. Additionally, it provides a typical temperature coefficient of only 50 ppm/°C, which ensures a consistent performance over its full temperature range of -40°C to 125°C.

In summary, the TL431LIBQDBZRQ1 from Texas Instruments is a robust, flexible, and precise voltage reference that is well-suited for automotive and industrial applications. Its programmability, stability, and compact form factor make it an excellent choice for designers seeking a high-quality voltage reference solution.