CDLL754

CDLL754 Application Field and Working Principle

The CDLL754 is a single zener diode that is widely used in many different types of applications. It has a minimum breakdown voltage of 4.5V and a maximum power dissipation at 5mA. This diode is widely used in devices that require regulated current sources or regulated voltage references.

Applications

The primary applications of the CDLL754 include regulated current sources, regulated voltage references, and power monitors. Additionally, it can be used as a clamp for high voltage transients in many electronic circuit designs.

Working Principle

The CDLL754 works much like a traditional Zener diode; when a forward voltage is applied to the diode, it will be forced to break down and conduct current at a fixed voltage. This voltage is determined by the “Zener breakdown” and can be controlled through adjustments made to the forward bias voltage.

When used in a current source, the diode is fed a fixed current. This current then passes through the diode and is clamped at a certain voltage. This voltage is determined by the Zener breakdown voltage, and the current flowing through the diode is then limited to the maximum current allowed by the Zener breakdown voltage and the resistance of the diode.

In a voltage reference, the diode is connected to a power supply and then an output is taken off the diode. This output will have a fixed voltage that is determined by the Zener breakdown voltage. This can be used as a reference voltage to meter a power supply, or as an error amplifier in a system that requires very precise voltage control.

Conclusion

The CDLL754 is a single Zener diode with a minimum breakdown voltage of 4.5V, and a maximum power dissipation of 5mA. This diode is widely used in devices that require regulated current sources, voltage regulators, and power monitors; their most common application is in a clamped power supply design. Additionally, the CDLL754 can be used to produce a fixed voltage reference in systems requiring precise voltage control.