The TL431ILPRM from ON Semiconductor is a three-terminal programmable precision shunt voltage reference. This integrated circuit (IC) is a versatile device that offers the flexibility of a shunt regulator with the precision of a voltage reference. It is designed to maintain a stable reference voltage over a wide range of operating conditions, including variations in supply voltage, load conditions, and temperature.
This precision IC features a guaranteed reference voltage of 2.495V with a ±1% tolerance at 25°C and ±2% over the entire operating temperature range of -40°C to +85°C. The TL431ILPRM can be programmed with two external resistors to provide a desired reference voltage between Vref and 36V, making it suitable for a variety of applications, such as power supplies, battery chargers, and voltage monitoring systems.
The device offers excellent temperature stability and low output noise, which is crucial for applications requiring a high degree of precision and reliability. The TL431ILPRM also has a typical dynamic output impedance of 0.2Ω, which contributes to its stable output voltage under dynamic load conditions.
ON Semiconductor's TL431ILPRM comes in a small outline transistor (SOT-89) package, which is ideal for space-constrained applications. The compact form factor, along with its surface-mount design, enables it to be easily integrated into a wide range of electronic circuits.
With its ability to source or sink up to 100mA of output current, the TL431ILPRM is not only a reference voltage source but can also perform error amplifier functions in feedback control loops. Its low power consumption and wide operating voltage range make it an energy-efficient solution for portable and battery-powered devices.
In summary, the TL431ILPRM from ON Semiconductor is a highly versatile and reliable voltage reference that provides designers with a simple yet effective solution for maintaining accurate voltage levels in their electronic designs. Its programmability, stability, and low power consumption make it an excellent choice for a wide array of applications.
