KA3882CDTF

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KA3882CDTF is an AC/DC converter, offline switcher integrated circuit (IC) manufactured by Slon Industrial Co., Ltd. The IC is widely used in various applications such as lighting, power supplies, battery chargers, and many more. The IC contains an active power factor correction controller and can operate at an output voltage of up to 32V DC.

The KA3882CDTF is designed to offer high efficiency and reliable performance for offline power conversion applications. It has a wide input voltage range from 85VAC to 265VAC that can be used for universal and world standards. It incorporates a low start-up current feature to reduce the current stress on the output voltage during the start-up of the power conversion. It also features an integrated soft start to slowly ramp up the power to the output voltage and reduce input inrush current.

The IC can be used in isolated and non-isolated converter applications. It also offers protection such as cycle-by-cycle current limiting, hiccup over-current protection and over-voltage protection. In addition, the IC has a built-in low power consumption (<1W) standby mode with a frequency of either 65Hz or 90Hz which allows the IC to reduce power cost by decreasing the gate charge and switching losses. The KA3882CDTF also provides an excellent EMI performance with built-in under-voltage protection.

The working principle used by the KA3882CDTF is based on a switch-mode half-bridge topology. The IC contains two power transistors which enables bidirectional AC/DC power conversion. The power stage consists of two separate half-bridge converters, one for the negative terminal and one for the positive terminal. The half-bridge converters use synchronous rectification which enables them to achieve high efficiency at low switching frequencies and low standby power consumption.

The KA3882CDTF is a highly efficient, reliable and low cost solution for various offline power conversion applications. It is capable of handling a wide range of input voltages and is suitable for use in high power conversion applications such as lighting, power supplies, and battery chargers. The IC has excellent EMI performance and is capable of offering a low start-up current. The integrated switch-mode half-bridge topology, low cost and reliability makes the KA3882CDTF an excellent choice for various offline power conversion applications.

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