PKS607YN

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PKS607YN is an off-line switcher, designed as a fixed frequency current mode control IC. With its flexible output, it serves various applications, including AC/DC converters and phase-shedding offline regulators. It integrates many features such as high voltage startup cells, frequency jittering, dynamic VCC regulation and over-current protection.

Among the PKS607YN’s most important features is its flexible output regulation. This enables it to allow voltage output regulation from 5 volts to 40 volts and current outputs from 0.25 amps to 72 amps. This makes it suitable for high power applications such as power switchers and Uninterruptible Power Supply. It also offers excellent voltage and current stability by virtue of its current mode control.

In terms of working principles, PKS607YN utilizes current sensing techniques to regulate the amount of power transmitted to the output. A feedback loop is employed to compare the measured current to the reference voltage. When the measured current is less than the reference voltage, the power converter will increase the output voltage. When the measured current is greater than the reference voltage, the power converter will reduce the output voltage. This current sensing technique enables PKS607YN to effectively regulate the output power and enable it to highly efficient.

PKS607YN also features frequency jittering. This is a technique used to reduce EMI noise. It utilizes a random jitter modulating scheme where the output is varied randomly for a short period of time. This produces random frequency swings, which improves the system’s EMI noise performance. Furthermore, it also helps in minimizing system output voltage ripple.

PKS607YN also utilizes a high-voltage startup cell. This startup cell is responsible for keeping the output voltage at an optimal level even when the power is first applied. It helps in reducing the start-up time, improving the system’s efficiency. Moreover, it also protects the output from transient over-voltages and inrush current.

Finally, PKS607YN also provides an over-current protection. This feature is designed to prevent the system from any damage due to its current exceeding the set limit. It helps to keep the system safe and running efficiently by limiting the absolute maximum current during power-on and output switching.

In conclusion, PKS607YN can serve as an efficient and reliable off-line switcher in the AC/DC converters and phase-shedding offline regulators applications due to its flexible output, current mode control, frequency jittering, high voltage startup cell, and over-current protection.

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