NCP4353BSNT1G

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• NCP4353BSNT1G Application Field and Working Principle

  NCP4353BSNT1G is a highly integrated, three-phase DC/DC power supply controller produced by ON Semiconductor. It is designed for step-down and step-up applications by converting intermediate bus voltage to the output voltage. This power supply controller can be used in applications such as automotive, industrial, and consumer electronics supplies, providing cost-effective solutions to multiple applications and flexible voltage adjustment over wide input voltage ranges.

  The NCP4353BSNT1G features a high level of integration including two adjustable power stages,each capable of providing up to 1A of output current. In addition, it offers advanced protection features such as input overvoltage, output overvoltage, output short-circuit protection, over-temperature protection, and cycle-by-cycle current limit. All these protection features can be easily configured by the user with external resistors.

  The NCP4353BSNT1G also has other functional features such as Soft-Start and Dynamic Voltage Scaling, which allow it to provide high efficiency and faster load transitions while maintaining stable output voltage. This is also complemented by a phase-shift modulation scheme that provides smooth frequency modulation and low acoustic noise.

  In terms of the working principle of the NCP4353BSNT1G, it is based on Pulse Width Modulation (PWM) and Pulse Frequency Modulation (PFM) technologies. The two power stages received the feedback voltage from the output voltage and then make the appropriate adjustments in the duty cycle and frequency, thus ensuring that the output voltage is precisely maintained. The two power stages also use a phase-shift modulation technique to ensure smooth frequency modulation and low acoustic noise.

  The NCP4353BSNT1G is a very versatile and comprehensive solution which provides a wide range of protection features and programmable parameters to optimize power supply design. With a wide range of input voltage ranges and flexible voltage adjustment, the NCP4353BSNT1G is ideal for many applications such as automotive, industrial, and consumer electronics supplies.

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