TOP249R-TL

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The TOP249R-TL is an integrated offline switcher for AC/DC converters and power supplies. It combines several features including a high-voltage switching MOSFET, an input voltage multiplier, and a frequency jitter. The device also includes on-board control circuitry and protection components to ensure maximum efficiency, reliability and longevity. The TOP249R-TL is suitable for a wide range of offline AC/DC converter applications such as notebook power adapters, SMPS, LED lighting, industrial control and more.

The TOP249R-TL operates by first converting AC input voltages into regulated DC voltages which can then be used to power the connected load. A full-wave rectifier is used to convert the AC into DC, and a high-voltage switching MOSFET is then used to provide the AC/DC conversion process. The device also includes a primary side control IC that offers built-in current limitation, over-voltage protection, and frequency jittering to reduce the conducted and radiated EMI levels.

The TOP249R-TL also includes an optional built-in input voltage multiplier circuit which can be used to reduce the AC input voltage requirement. This reduces the power system cost by eliminating the need for a rectangular transformer as well as elimination of extra rectification components. The voltage multiplier converts the input AC voltage into an output of one or two independent DC voltages which can then be used to power the connected load.

The TOP249R-TL also includes a thermal resistor which helps in spreading heat dissipation along the windings of the transformer and in improving the efficiency of the switch. The cooling of the device is also enhanced by encapsulating the components of the device in a thermally conductive epoxy material.

The TOP249R-TL offers several benefits over other AC/DC offline switchers including reduced component count, increased design flexibility, improved reliability, and increased efficiency. The device is suitable for use in a wide range of applications such as notebook power adapters, SMPS, LED lighting, industrial control and more.

The TOP249R-TL is an excellent command module for the various types of offline AC/DC converters and power supplies. It offers high-voltage switching MOSFET, an input voltage multiplier and frequency jitter which improves reliability and efficiency, and also provides built-in control circuitry and protection components. The TOP249R-TL is suitable for a wide range of off-line applications, providing a reliable and cost-effective solution for customers.

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