8D519Z18SN251

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8D519Z18SN251 Application Field and Working Principle

The 8D519Z18SN251 is an integrated circuit that works as a three-phase converter between the AC mains and the DC loads. It is an extremely cost-efficient solution for low-power AC-DC applications. The 8D519Z18SN251 is intended for low-power applications that don\'t require complex protection features or sophisticated controls, such as home appliances, consumer electronics, and industrial automation systems.

The 8D519Z18SN251 is a fully-integrated, three-phase converter with a switch-mode power supply (SMPS) topology. It provides high efficiency and low average current drawn when converting AC mains to low-voltage DC output. The integrated design allows for much smaller form-factor and cost savings. It includes protection features such as over-voltage, over-current, and short circuit protection.

The 8D519Z18SN251 is designed to operate with input voltages within a range of 120V to 288V. It can operate in either continuous mode or discontinuous mode. In continuous mode, the current drawn from the AC source is kept constant even if the load changes. In discontinuous mode, the current drawn from the AC source is adjusted according to the load current. The 8D519Z18SN251 also has a built-in soft-start feature that smoothly increases the output power to the DC loads.

The 8D519Z18SN251 incorporates a wide range of control features that enable it to meet the needs of different AC-DC applications. It supports both manual start and automatic start-up control modes, as well as operating frequency and applied voltage control. It also has dual phase-shift control to reduce the input power factor distortion. This allows the 8D519Z18SN251 to achieve both high efficiency and reduced harmonics.

The 8D519Z18SN251 can be used in a variety of AC-DC applications such as consumer electronics, home appliances, industrial automation systems, lighting control systems, and automotive applications. Its low cost, small size, high efficiency, and wide range of control features make it the ideal choice for cost-sensitive AC-DC designs.

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