CDLL3050B-1

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Diodes - Zener - Single - CDLL3050B-1 Application Field and Working Principle

CDLL3050B-1 (30v, 50mW) is a single, 3 terminal, low power Zener diodes. It is primarily designed for applications which require stable and reliable voltage references. The diodes are produced using advanced shallow trench isolation (STI) technology for improved isolation and minimised leakage. It has an ultra-low leakage current which makes it suitable for low voltage diffused Zener applications.

The diodes are designed to perform a variety of functions, such as providing a stable voltage reference for electronic equipment, rectifying, and protecting sensitive components from negative voltage surges. The diodes have a temperature coefficient of less than 10 mV/K, making them stable over a wide temperature range. The ultra-low residuals also makes them suitable for high-speed frequency requirements.

Application Field of CDLL3050B-1

CDLL3050B-1 can be used in a wide range of applications due to its low power consumption, stable voltage reference and low leakage current. Its low power consumption makes it ideal for applications such as portable devices, laptop computers and other portable electronics. It is also suitable for applications needing an ultra-low Zener current such as sensing circuits and protective circuits. The device can be used to provide a stable voltage for logic level conversion and low power analog control circuits.

The diodes can also be used in Zener clamping circuits to limit overvoltage and protect from electrostatic discharge. This makes them suitable for automotive applications as well as other high-voltage application where protection from ESD is required. Finally, the device is also popular for interfacing and protection in telecommunications networks, where its low leakage prevents false triggering of the circuit.

Working Principle of CDLL3050B-1

The Zener diode operates by utilizing the Zener effect. The Zener effect occurs when a diode is reverse biased and its breakdown voltage is reached. Once the breakdown voltage is exceeded, the diode switches from its off state to a state of conduction. This results in a voltage drop across the diode. The voltage drop is referred to as the Zener voltage.

When used as a voltage reference circuit, the CDLL3050B-1 provides a level of regulation for the load. As the load current increases, the voltage across the diode increases. This in turn causes the Zener diode to reduce the voltage across the load, thus maintaining the load at a constant voltage. This process is known as Zener diode regulation.

When the CDLL3050B-1 is used as a protective circuit, it is connected in parallel with the load. When a negative voltage surge or electrostatic discharge is detected, the CDLL3050B-1 will conduct and limit the voltage across the load. This clamps the voltage and prevents it from exceeding a predetermined level. This process is also referred to as Zener clamping.

Conclusion

The CDLL3050B-1 single Zener Diodes can be applied in a variety of applications due to their low power consumption and noise immunity. The devices have an ultra-low leakage current and are suitable for low voltage diffused Zener applications. They can be used for voltage regulation, as well as for protection against ESD and negative voltage surges. The operation of the diodes is based on the Zener effect, in which it switches from an off state to a state of conduction and provides a stable voltage reference.

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