CMPZ5255B TR

CMPZ5255B TR Application Field and Working Principle

As part of the Zener diode family, CMPZ5255B TR is a low power Zener diode. It is the ideal component for the applications of voltage regulation, voltage reference and the protection against transient overvoltage. As single junction diodes, the CMPZ5255B TR offer complete isolation from the component of input line and output line, thus providing a more secure power supply for the system.

Working Principle of CMPZ5255B TR

In conventional Zener diode application, the traditional Zener is constructed with high voltage rectifier diodes and Zener diodes in series and the component of power supply is connected to the output side to gain the required voltage. When an over voltage is applied, the Zener diode will respond to the external voltage, thus providing the stable reference voltage.

However, in case of CMPZ5255B TR, the proprietary P+ area functions as a termination for the external bias application and the extended N+ area acts as a voltage reference. This proprietary structure can produce the Zener voltage automatically without requiring any input from external power supply. Additionally, the extended gate is instrumental in maintaining the Zener effect of the chip and minimizing the transient over voltage.

Applications of CMPZ5255B TR

CMPZ5255B TR provides two working modes, namely series and shunt mode.

• In the series mode, CMPZ5255B TR functions as a voltage regulator. It can be used in applications where a stable and uniform voltage rail is required.
• In the shunt mode, CMPZ5255B TR can be used as a reference voltage source. The internal Zener characteristics of CMPZ5255B TR will ensure a stable and reliable voltage output.

CMPZ5255B TR is ideal for applications such as voltage reference in portable device, EMI/RFI protection, USB transceiver protection and over voltage protection. The overall design of CMPZ5255B TR is tailored for cost-effectiveness and providing the best efficiency with minimized power dissipation.

Conclusion

CMPZ5255B TR is a low voltage Zener diode specially designed for the applications of voltage regulation, voltage reference and protection against transient overvoltage. By utilizing the proprietary P+ and N+ areas, the device can produce stable Zener voltage without external power supply. Additionally, the extended gate enhances the Zener effect and decreases the transient overvoltage. CMPZ5255B TR is preferred by users due to its high performance, efficiency and cost-effectiveness.