TOP264KG

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AC/DC power supplies are essential in many applications and industries due to the fact that they provide a stable, constant source of electricity with varying loads and requirements. The TOP264KG is a fixed-frequency, offline switcher IC designed for AC/DC power supplies applications. It is a high performance current mode controller that offers high conversion efficiency and simple design.

The TOP264KG can be used in a wide range of AC/DC power supplies such as wall adapters, LED driver and LED lighting systems, automotive electronics, computer power supplies, office equipment, residential lighting, and other industrial, commercial, and medical power supplies.

The TOP264KG offers peak efficiency of up to 91%, which makes it ideal for applications where energy efficiency is a primary concern. It is also rated for temperatures up to 105°C, enabling it to operate in harsh environments. The device provides protection against current runaway, overvoltage, overtemperature, and loss of feedback.

The TOP264KG is designed to work in both quasi-resonant and third-harmonic- elimination type switch-mode power supplies. It utilizes a current mode control to provide fast transient response and eliminate audible noise. The device supports a wide range of operating frequencies from 50kHz to 500kHz, allowing for maximum design flexibility. Additionally, the device offers 16V/550mA drive capability for large MOSFETs with low gate capacitance.

The TOP264KG is suitable for offline and direct AC operation due to its UVLO, foldback and soft-start features. It also features an adjustable inrush current and line power feedforward technique which compensates for line voltage variations. Additionally, it features an adjustable flyback frequency limit, which limits the switching frequency to ensure proper operation in noisy environments.

The device is also capable of supporting Burst Mode operation, which allows it to maintain high efficiency at light load conditions. Burst Mode operation is triggered when the output current drops to a predetermined threshold, resulting in a reduction in switching losses during light load operation.

The TOP264KG is a comprehensive, high performance IC designed to meet the demanding requirements of a wide range of AC/DC power supplies. With its integrated protection features, high efficiency and excellent performance, the device is ideal for use in a variety of applications.

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