V72C28M150BF2

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DC-DC converters generally contain a controlled, power electronic switching device, typically a field-effect transistor (FET), and an energy storage element, such as a transformer, inductor or capacitor. These components work together to convert a nonDC voltage or current into a DC voltage or current of the desired magnitude and output waveform character.DC-DC converters are used in a wide variety of applications, ranging from the power sources in computers and telecommunication equipment to highly robust, harsh environment applications such as in aerospace and military systems. The V72C28M150BF2 is a variant of a DC-DC converter, designed for use in 19 V to 28 V input, high efficiency DC-DC converter applications.

The V72C28M150BF2 is a controller IC that integrates the two main functions of a DC-DC converter: the power switch controller and the voltage regulator. Consisting of an integrated MOSFET driver, high-side and low-side current sense capabilities, and various device protection features, the controller IC allows the designer to build a very efficient, low-complexity, up to 1.5ooW, DC-DC converter circuit with a peak efficiency of 98.5 %.

The V72C28M150BF2 controller operates in either a discontinuous or continuous conduction mode, depending on the load condition. In the continuous conduction mode, the inductor current ramps up during the duty cycle cycle and ramps down during the rest of the cycle. As such, the current in the inductor is never zero. In the discontinuous conduction mode, the inductor current reaches zero at the end of each duty cycle. The V72C28M150BF2 can support a wide range of inductance and output voltage ranges, up to 28 VDC.

The operating principle of the V72C28M150BF2 is relatively simple. The output voltage is set by regulating duty cycles on the power switch, typically an n-channel MOSFET within the controller IC. The duty cycles are determined by voltages across two resistors, called the sense and feedback resistors. The current in the inductor is sensed by monitoring the voltage across the sense resistor. The feedback voltage from the output is monitored at the feedback pin. If the output voltage is greater than the set voltage, the duty cycle is reduced; if it is lower, the duty cycle is increased.

The V72C28M150BF2 controller also includes various protections features, such as undervoltage lockout, overtemperature shutdown, undercurrent protection and overcurrent protection. This makes the V72C28M150BF2 an ideal choice for high efficiency, rugged and reliable DC-DC converter designs. With these protection mechanisms, the V72C28M150BF2 ensures that the application is safeguarded against any power related mishaps.

In conclusion, the V72C28M150BF2 is a DC-DC converter controller IC designed for use in 19 V to 28 V input applications. It is capable of providing accurate output voltage regulation up to 1.5oW and a peak efficiency of 98.5 %. The V72C28M150BF2 has various protection features, such as undervoltage lockout, over temperature shutdown, under current protection and overcurrent protection, making it an ideal choice for high efficiency, rugged and reliable DC-DC converter designs.

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