L6565N

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L6565N is a Pulse Width Modulation (PWM) controller used to regulate the output voltage of AC/DC applications. It has wide input voltage range, programmable switching frequency and a high precision output voltage tolerance. The device is also suitable for offline switchers that require high efficiency, small size, and low cost.

The L6565N is an integrated PWM controller with a voltage regulator, an oscillator circuit and an error amplifier. It is used to regulate the output voltage of an A/C or D/C adapter. The PWM control technique is used to switch on/off the power transistors to control the output current and thereby regulate the output voltage.

The L6565N uses a fixed frequency oscillator and an error amplifier to regulate the output voltage. The oscillator generates a sawtooth waveform and the error amplifier compares this with the reference voltage to generate the PWM signals. The PWM signals are fed to the power transistors which in turn control the output current to regulate the output voltage.

The L6565N has wide input voltage range, allowing for efficient conversion of input voltage to the desired output voltage. It also features an adjustable switching frequency and a high precision output voltage tolerance. This allows for precise voltage control even when the input voltage varies widely.

The L6565N is widely used in AC/DC adapters and offline switchers. It offers efficient and low cost power conversion and is suited to applications that require small size and low power consumption. It is also used in LED drivers and switching power supplies.

Overall, the L6565N is a reliable and low-cost PWM controller suitable for a wide range of AC/DC and offline applications. It ensures efficient and precise power conversion and is capable of regulating the output voltage with high precision even when the input voltage varies widely.

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