TL431BQLP Precision Programmable Reference

The TL431BQLP from Texas Instruments is a three-terminal adjustable shunt regulator with specified thermal stability over a full operating temperature range. This precision programmable reference is part of the TL431 series, renowned for its flexibility and ease of use in a wide array of voltage regulation and system control applications.

With an output voltage range settable from 2.495 V to 36 V, the TL431BQLP can be programmed with two external resistors. It exhibits a typical output impedance of 0.2 ohms, a feature that contributes to its stable operation and reliable performance across various conditions.

The device offers excellent temperature stability and a low output noise, making it suitable for high-quality and high-performance systems. The TL431BQLP is commonly used in power supplies, voltage monitors, and as an adjustable current source, thanks to its sharp turn-on characteristics.

Key features of the TL431BQLP include:

• Reference Voltage Tolerance: ±0.5% at 25°C, and ±1% over the full operating temperature range.
• Low Dynamic Output Impedance: The dynamic output impedance of 0.2 ohms with a typical sink current capability from 1 mA to 100 mA ensures stable voltage supply.
• Wide Operating Temperature Range: This device operates reliably over a broad temperature range of -40°C to 125°C.
• Fast Turn-on Response: The TL431BQLP is well-suited for applications requiring a quick response time.
• Standard TO-92 Package: The TL431BQLP comes in a compact, through-hole TO-92 package, which is easy to integrate into a variety of circuit designs.

As a versatile and reliable component, the TL431BQLP is ideal for use in numerous electronic applications where precision voltage regulation is crucial. Its ability to perform well under varying conditions and its ease of programmability make it a preferred choice for designers and engineers looking to create stable and adjustable power supplies.