FSL126HR

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The FSL126HR is a high frequency, halogen-free, offline switching regulator, and it is part of the PMIC AC/DC Converters and Offline Switchers application field. The FSL126HR works by utilizing a proprietary design that uses current mode PFC and Primary Side Regulation (PSR) technology together, enabling it to provide high power efficiency, high power factor and excellent transient response. The FSL126HR is designed to meet the needs of low power and moderate power applications like street lights, LED displays, and power over Ethernet (PoE) systems.

The FSL126HR is a fully integrated solution, meaning all the necessary components, such as the PFC controller, current sensing components, output power components and the feedback loop, are all contained within the device itself. Furthermore, it also has built-in protections, including over-current and over-temperature protections. The core of the device is the proprietary Primary Side Regulation (PSR) technology, which allows the FSL126HR to regulate the output voltage without any sense or feedback circuitry, resulting in an extremely low-noise and cost-effective solution.

The FSL126HR works by using current mode pulsed-width modulation to independently generate, store, and switch currents in the primary winding of the transformer, in order to provide a fixed output voltage with minimal input voltage fluctuations. During normal operation, the primary-side is regulated and the intermediate DC link, formed between the input and output windings, is held at a regulated voltage by the PSR technology. This helps ensure optimal power efficiency and output ripple regardless of the input line frequency or load.

The FSL126HR has an operating frequency of up to 500 kHz and it supports a wide operating temperature range from -40°C to 85°C, allowing it to be used in various demanding applications. In addition, it also has various safety certifications, such as UL,IPXX, FCC and ROHS, making it well-suited for use in the industrial and commercial sectors.

The FSL126HR is a good choice for applications that require high power efficiency, high power factor and excellent transient response, and it can be used in a wide variety of applications, such as LED displays, street lights and PoE systems, as it has been designed to meet their needs.

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