UCC3813N-4

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The UCC3813N-4 which is a 4th generation, high-performance, Power Factor Corrected (PFC) low-cost controller, is a versatile and effective AC-DC converter with offline switcher capabilities that is manufactured by Texas Instruments. This device supports both single and dual output modes, is optimized for performance, and features a wide input voltage range from 85-265VAC. The UCC3813N-4 allows for efficient, low-ripple, stable power outputs for a range of AC DC power applications.The UCC3813N-4 is designed to provide a reliable, low-cost, low-noise, and high power factor method of power conversion. It uses advanced digital techniques to control a power converter, as well as provide protection against output under-voltage, output over-voltage, and overcurrent short-circuit protection. Furthermore, the UCC3813N-4 features a dedicated overflow comparator that provides protection from an accidental short-circuit of a high-voltage input supply. The device also provides adjustable start-up current limiting for improved system stability and the ability to monitor output voltage and current, allowing for improved system efficiency.The UCC3813N-4 contains an embedded error amplifier for controlling the power converter, which enables the controller to accurately control both the line regulation and the load regulation of the output voltage. This improves output voltage accuracy, stability, and ripple. Additionally, the UCC3813N-4 allows users to adjust the switching frequency, thus optimizing their system requirements.The UCC3813N-4 includes a power factor controller that controls the input voltage waveform to ensure compliance with AC line noise requirements. This advanced PFC controller allows the device to turn the input power supply voltage waveform into a sinusoidal waveform with a high power factor while still providing a low total harmonic distortion (THD). Additionally, the controller includes dead-time and pulse-width modulation (PWM) timing programs that can be adjusted to optimize power efficiency.The UCC3813N-4 is designed for AC DC applications including LED lighting, monitors, televisions, printers, hand-held devices, and other industrial and household electronics. The device is particularly useful for applications requiring a low total harmonic distortion, high efficiency, and excellent reliability. It is available in a 28-pin surface mount package, allowing for easy integration into existing electronic products.In conclusion, the UCC3813N-4 is a high-performance and cost-effective AC DC converter and offline switcher designed to meet the latest requirements for AC DC power conversion in consumer and industrial applications. The device offers high efficiency and power factor, low total harmonic distortion, adjustable switching frequency, and adjustable start-up current limiting. It is an ideal solution for those needing a reliable, low-noise power source with improved system efficiency.

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