LNK3604P

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The LNK3604P is a high-efficiency, low-power mid-voltage interleaved flyback converter integrated into a single-stage topology. It is a highly integrated solution that includes all primary components required to create an isolated power supply - well suited for applications such as LED lighting, cordless drills, power tools and automotive auxiliary circuits. With a maximum of 8.2W of power output and it provides a high-performance power conversion solution.

The device is integrated with a complete set of features, including: primary side regulation, frequency modulation, soft-start, temperature protection and output voltage regulation for improved efficiency and reliability. The LNK3604P also supports low leakage current across the transformer and low EMI emissions, making it ideal for products that require high efficiency. Built-in overvoltage and overcurrent protection enable the LNK3604P to protect the power supply from potential damage caused by external disturbances.

The LNK3604P is part of the Power Integrations family of AC/DC converters. The device is designed for an offline switcher, which takes an AC input signal from a 115VAC or 230VAC source and converts it to a DC signal output. The LNK3604P has been designed to reduce standby power consumption and provides excellent electrical performance, up to an efficiency of 87%. The device features an extended operating temperature range from -40 to +85°C. This offers flexibility for a variety of applications, such as those operating in a wide temperature range.

In offline switcher applications, the LNK3604P typically operates in a Zero Voltage Switching (ZVS) mode. When the input supply is off, the controller typically produces a startup pulse, resulting in a “step-up” in the output voltage that brings its value up to the reference voltage set by the integrated voltage loop. When operating in the ZVS mode, the power converter achieves good power efficiency with very low-ripple current and EMI levels.

The LNK3604P can be implemented in a variety of applications due to its improved low-cost architecture, making it an ideal candidate for small-scale portable electronics and distributed power systems, such as embedded computing, tablets, and servers. Typical applications also include energy-saving lighting, digital signage and portable medical electronics. The device’s high efficiency, low power consumption, and wide operating temperature range make it an attractive choice for today’s energy-conserving applications.

Power Integrations’ LNK3604P is an ideal solution for a range of low power applications, from cordless drills and power tools to embedded computing and automotive auxiliary circuits. It is designed to provide high efficiency and reliability, with features including primary side regulation, frequency modulation, soft-start and temperature protection. Its extended operating temperature range, low leakage current and high efficiency make it a great choice for many AC/DC converter, offline switcher and LED lighting applications.

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