LNK6664V

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The LNK6664V is a circuit IC designed with a variety of applications including PMIC, AC/DC Converters, and Offline Switchers. The IC is a self-protected low-side MOSFET driver with a built-in DSBC self-protection circuit to ensure safe operation. The integrated DSBC allows the IC to monitor the output voltage, input voltage and switch current.

In terms of application, the LNK6664V can be used in power supplies, DC/DC converters, dimmers, or high-powered LED drivers. It\'s primarily used to control the switching event of offline switchers and AC/DC converters such as those designed for telecom, datacom and industrial power supplies. The IC is designed to offer protection against over-voltage, over-current, short-circuit and surge protection.

The working principle of the LNK6664V is based on the Pulse Width Modulation (PWM) control technique. The controllable output voltage and current can be precisely modulated based on the Pulse Width Modulation input signal from the control circuit. There are two main PWM control blocks in this IC: the Frequency Modulation Control Block and the Linear Modulation Control Block.

The Frequency Modulation Control Block comprises a digital PWM controller and a comparator which monitors the output voltage relative to a reference voltage. The Linear Modulation Control Block is a digital PWM controller that determines the output voltage and current depending on the specified voltage and current values as well as the parameters of the switching system.

The LNK6664V IC also has built-in thermal protection, circuit protection and over-voltage protection. It also implements safety-critical functions under dynamic circuits such as power-off or pull-up control. In addition, the IC has an adjustable linear PWM controller to allow the output voltage and current to be adjusted accordingly.

Overall, the LNK6664V is a highly integrated, self-protected, low-side MOSFET driver suitable for PMIC, AC/DC converters and offline switchers. Its integrated DSBC self-protection circuit offers protection against over-voltage, over-current, short-circuit, and surge protection. The Frequency Modulation and Linear Modulation Control Blocks enable precise, good-quality PWM output voltage and current control. The thermal protection, circuit protection, and over-voltage protection increase the reliability of the device.

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