MBRD1545CTTR Discrete Semiconductor Products

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Diodes - Rectifiers - Arrays

The MBRD1545CTTR is an ultrafast recovery rectifier array, consisting of a built-in surge protection ESD diode and two high speed driver transistors.

The device is mainly used in switched mode power supplies (SMPS) because of its high efficiency and low loss. It is also well-suited for higher frequency power converters, such as DC/DC converters.

Applications

The MBRD1545CTTR is well-suited for the following applications:

• Power factor correction (PFC)
• High speed PWM
• Lighting
• Uninterruptible power supplies (UPS)
• Motor speed control
• DC/DC converters

Working Principle

The device works by using two driver transistors to create a high-frequency full-wave rectifier. The two transistors are pulsed alternately, allowing the current to flow in only one of the two directions at any given time.

The transistors are also used to provide fast switching and reduce switching losses. The transistors are connected in a bridge configuration, with the emitter of one transistor connected to the base of the other transistor and vice versa.

The device also includes an ESD diode, which is used to protect the device against electrostatic discharge. The diode is connected to the output of the device, and if a voltage spike occurs, the diode will be turned on and will absorb the energy.

Conclusion

The MBRD1545CTTR is an ultrafast recovery rectifier array, which is mainly used in switched mode power supplies for its high efficiency and low loss. It is also suited for higher frequency power converters and lighting applications.

The device works by using two driver transistors to create a high-frequency full-wave rectifier, and an ESD diode is used to protect the device against electrostatic discharge.

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