TNY265PN

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TNY265PN is an integrated power management IC providing a complete off-line power package capable of driving loads up to 150W. With its integrated low power, high efficiency flyback topology, it is designed to easily satisfy any kind of low power, high efficiency application.

TNY265PN is an AC/DC converter and an offline switch, with a wide input range from 85V to 265VAC. It offers an excellent combination of high efficiency, low power dissipation and cost effectiveness for a wide range of low power applications. The output can be adjusted from 5V to 330V. It also supports over-voltage protection and has a built-in thermal shutdown to help prevent damage due to overheating.

TNY265PN is designed with a high-efficiency, current-mode, primary side, PWM controller and a low-cost inductor and capacitive output design. It features a single-stage, constant on-time, discontinuous mode flyback converter topology. Its PWM controller has a 400kHz switching frequency with a power factor of up to 0.99. The PWM controller adjusts the output voltage by regulating the on-time of the switch with a constant frequency modulator and a digital compensation loop.

The core of TNY265PN is its external flyback transformer. The flyback transformer is a coupled inductor used to regulate the output of the power supply. It is essential for low power designs because of its high efficiency, low power dissipation and small size. The TNY265PN provides an external bias winding on the primary side of the transformer, allowing the transformer to develop a constant bias in the primary circuit, which achieves stable operation without the need for an external bias winding.

In addition, TNY265PN offers wide protection features including over-voltage protection, over-temperature protection and short circuit protection, improving the safety and reliability of the circuit. It also has an integrated power supply clamp that helps protect against over-current and over-voltage. Further, it has integrated soft start and under-voltage lockout functions for greater system performance.

In conclusion, TNY265PN is an ideal integrated solution for low power, high efficiency, cost-effective AC/DC power systems. With its wide input range, integrated low power, high efficiency flyback topology, wide protection features and integrated power supply clamp, it can easily meet the demands of various low power, high efficiency applications.

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