DD231N24KHPSA1

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A DD231N24KHPSA1 rectifier array is a type of device commonly used in regenerative circuits and active power factor correction (PFC) circuits. The device is part of the Diode family and it is a three-diode array, consisting of two high-side, and two low-side diode paths. It provides a compact, full-focus rectifier solution, ideal for applications with limited space but requiring full-wave rectification.

The application field of this device extends to circuit designs that require high frequency rectification, such as switched mode power supplies (SMPS), AC-DC converters, and high-density can be achieved in demanding applications such as inverter circuits for motor drives.

The DD231N24KHPSA1 is a 3-phase bridge rectifier with 24 V maximum breakdown voltage and a 2.5 A current rating. It features a high-side voltage-suppressed cascade rectifier with three independent diodes, the low-side voltage-suppressed rectifier, and the gate driver output stage. The device can provide reverse recovery times as low as 1.5 nS for each diode, making it suitable for high-frequency applications. The overall rectifier operates with a minimum differential input voltage of 45V and is rated for continuous operation at a maximum junction temperature of 175C.

Working principle

The device is designed to provide rectification using two half-cycle switching elements, one being an in-parallel, low-side, diodes chain and the other a half-cycle high-side, first reverse biased MOSFET/diode chain. During the positive half-cycle, induced current flows through the in-series chain of diodes. During the negative half-cycle, the same current paths is closed by the MOSFET, forcing current flow through the in-parallel diode chain.

In order to provide a tighter loop gain, DD231N24KHPSA1 contains a gate driver output stage, which provides an optimal signal to the gate of the MOSFET to ensure that the commutation occurs with minimal delay. The device is suitable for applications with very high input voltages, as the high-side transistors in the circuit guarantees that a substantial voltage loop is generated.

The device also has a thermal impedance of 0.4 C per watt, which ensures it can accurately regulate temperatures for a long period of time. This feature makes it suitable for pulse regulators and other similar applications which require a great deal of current.

In summary, the DD231N24KHPSA1 rectifier array is an ideal diode solution for applications involving high frequency and heavy load current such as switched mode power supplies, AC-DC converters, and inverter circuits for motor drives. It features an integrated gate driver output stage and a high-side voltage-suppressed cascade rectifier; and its reverse recovery time as low as 1.5 nS makes it suitable for high-frequency applications requiring fast switching speeds.

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