V72B28H250BF

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DC-DC converters provide a wide range of power conversion solutions that enable electronic devices to operate at higher efficiencies and with better power management features. The V72B28H250BF is a DC-to-DC converter designed to provide power conversion in a variety of applications including sensing and control, wireless communication and computing. This converter is designed with an advanced power management algorithm that maximizes system performance and reliability.

The V72B28H250BF, is a 3-phase bridge rectifier based SEPIC (single ended primary inductor converter) DC-DC converter, designed to operate from an input voltage of 13.8V to 28V and deliver an isolated output of 12V. The device includes an internal 70V vertical MOSFET switch and achieves peak efficiency greater than 96%, no load quiescent current of less than 1uA, and isolated power up to 250W. It also features switch frequency of up to 2MHz and output current limiting.

The transformer is key component to facilitate the isolation of input and output, the device uses a 2-section center tapped transformer for galvanic isolation. The transformer lets the power to be transferred from input to output side while isolating the two sides from ground effect. The output voltage can be adjusted by varying the duty cycle of the switch,- typically by using a linear voltage regulator and a pulse-width modulation (PWM) signal. The PWM signal is generated by an internal or external control circuit, depending on the application.

The other important component of the DC-DC converter is the inductor. Its role is to store energy to guarantee a better power efficiency and it allows a higher current to the primary side of the transformer. The output power is related by the input voltage, output voltage and inductor current. There are several types of inductors available for use in DC-DC converters, such as air-core, ferrite core, wound inductors, open and closed frame inductors. Each has its own unique characteristics that should be considered when selecting one for use in a particular application.

The V72B28H250BF is designed with an advanced power-conversion algorithm that maximizes efficiency and reduces power losses. It provides a die-temperature protection feature that helps to protect the device from excessive temperatures and short circuit protection for its output stage. The converter includes a monitoring and protection circuit, which is capable of detecting current and/or temperature anomalies and activating an alarm on both the device and its electronics board. It also has an integrated soft-start feature that allows the output voltage to transition more smoothly from no load to full load conditions.

The V72B28H250BF offers greater power capabilities, an improved design, and higher efficiency compared to traditional DC-to-DC converters. Its features make it suitable for high-power, high-efficiency applications such as servers, storage systems, battery-charged systems, and industrial applications where high-performance conversion is needed. With its high efficiency and excellent protection features, it represents the next generation in DC-DC power conversion technology.

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