TL431CDR2 Integrated Circuits (ICs)

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Voltage reference is an important element in power management, and TL431CDR2 is a popular high performance adjustable series voltage reference device in the market. It is mainly used for electronic system that requires precision voltage reference.

TL431CDR2 Features

The TL431CDR2 is an adjustable three-terminal shunt voltage regulator with a wide adjustable range of 1.23V to 37V. As an adjustable series of voltage regulators, it has a wide dynamic operating temperature range of -40°C to +125°C. The TL431CDR2 also has an ultra-low quiescent current of 8μA. It has excellent line and load regulation of 0.1% and good long-term output voltage stability of 0.2%.

TL431CDR2 Application

The TL431CDR2 has a wide range of applications, such as linear and switching power supplies, computer peripherals, automotive systems, telecommunications equipment and industrial control systems. With its adjustable range of 1.23V to 37V, it can be used for a wide range of voltage references, such as over-voltage protection, LED drive, LED flicker and current limit.

TL431CDR2 Working Principle

The TL431CDR2 is an adjustable three-terminal shunt regulator with a wide adjustable range. It has internal circuitry that senses differences between the reference voltage and the output voltage. When the sensed voltage difference exceeds a predetermined value, the device turns on and sinks or sources a current to adjust the output voltage until the two voltages are equal. The device is designed to provide exact output voltage regulation over a wide range of ambient temperatures, which is how it achieves voltage regulation. The TL431CDR2 works by means of a voltage sensing voltage follower, with the voltage feedback controlled by a stable external reference voltage.

TL431CDR2 Advantages

The TL431CDR2 has many advantages, such as adjustable output voltage from 1.23V to 37V, ultra-low quiescent current of 8μA and excellent line and load regulation (0.1%). It is also very reliable, providing accurate output voltage regulation over a wide range of ambient temperatures. In addition, the TL431CDR2 is cost-effective, since it requires only minimal external components.

Conclusion

The TL431CDR2 is an adjustable three-terminal shunt voltage regulator with a wide adjustable range of 1.23V to 37V and excellent line and load regulation of 0.1%. It also has an ultra-low quiescent current of 8μA and provides accurateoutput voltage regulation over a wide range of ambient temperatures. It is mainly used for electronic systems that require precision voltage references and is a cost-effective device that requires only minimal external components.

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