8LT215F97PC

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8LT215F97PC is an AC-DC converter IC (Integrated Circuit) used in the current regulation of power conversion system mainly used in consumer electronics. It is a switching type power supply module with a current mode PFC (power factor correction) and output current limit protection. It can be applied to billions of products like personal computers, game consoles, TV sets, computer monitors and portable devices. This IC can also be used in any equipment powered by AC mains voltages, including AC adapters, LED lighting, and similar circuit applications.

The 8LT215F97PC includes a main control IC, an operational amplifier, a MOSFET driver, and a current limit circuit. In a basic power supply circuit, it first rectifies the AC main voltage to DC voltage, then it will adjust the output voltage to an appropriate level, this process is known as the DC-DC step-down conversion. The 8LT215F97PC integrates all the components mentioned above into a single IC chip package, for easier and faster installation on the printed circuit board. The IC also includes the EMI filter, the over-temperature detection and fault protection circuit, and the noise suppression filter.

The 8LT215F97PC can be applied to the so-called "universal power supply", it regulates the output voltage to three or five wires, the commonly used values are 3.3V, 5V, 12V, -12V. It is capable of providing accurate output voltage regulation over a wide input voltage range from 60~ 265Vac. This IC also prevents an overload and short circuit damage to the main power circuit, providing an added layer of safety.

The 8LT215F97PC works in two main steps. First, it uses a PFC circuit for the AC-DC conversion and then it will regulate the output voltage to an appropriate level. The PFC circuit uses active power factor correction technology, in which a power switch is driven by the main control IC under certain feedback or control signal. This signal will adjust the switching current and frequency, so as to minimize the input current total harmonic distortion and achieve power factor. In order to set the DC output voltage of the converter, the two-lines current mode control loop is used, when the output current exceeds the rated current, the output current will be limited and the power switch will be cut off immediately.

The special design of 8LT215F97PC provides additional features such as standby power and low power start-up. In addition, it also includes the frequency jittering technology and a dimming control pin. It is available in multiple package configuration providing design flexibility.

The 8LT215F97PC has a wide range of applications including personal computers, game consoles, TV sets, computer monitors, portable devices, LED lighting, AC adapters, external power supplies, and other similar equipment powered by AC mains voltages. As well as providing fast and efficient power conversion, the 8LT215F97PC is also a safe, reliable and cost-effective solution. It can provide efficient, cost-effective and reliable power conversion, making it suitable for numerous applications.

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