LYT6068C-TL Integrated Circuits (ICs)

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LYT6068C-TL is a two-level Primary-Side-Regulation (PSR) offline switcher. It belongs to the field of Power Management Integrated Circuits (PMIC) and specifically, AC-DC converters. The device enables isolated off-line switches and is widely used in isolated AC-DC converters, including applications such as battery chargers, Adaptive Power Supply (APS) systems, telecom power converters, and LED drivers. The LYT6068C-TL provides an accurate PSR control solution that eliminates the need for an error amplifier and optocoupler, reducing the number of components, size and cost of the system.

The core feature of the LYT6068C-TL is its PSR control that regulates the output voltage from the secondary side without an optocoupler. The device also provides an Eco-Mode for higher energy efficiency at light load, an automatic burst mode for light load efficiency and output voltage ripple elimination, standby current control and over-temperature protection.

The LYT6068C-TL has a current-mode control, which is a closed-loop control mode based on the current feedback. In the current-mode control, the output voltage is automatically regulated by sensing the output current of the secondary side and adjusting the duty cycle on the primary side accordingly. The current-mode control also provides a fast response to line-voltage changes, making it an ideal choice for stability and good dynamic performance.

The LYT6068C-TL device also features a PSR control function, which is used to provide a high-efficiency, zero-ripple output voltage, even at low or light load conditions. The PSR control works by adjusting the switch conduction duty cycle and off-time, based on the feedback from the output voltage. This helps to minimize the output voltage ripple, while maintaining a high efficiency at light loads.

The device also provides an Eco-Mode function, which is mainly used for reducing the system power consumption at light loads. This mode brings up the secondary-side output voltage and reduces the duty cycle of the primary side, reducing the total power consumption of the system with no degradation in performance.

In addition, the LYT6068C-TL device also has various safety features, such as over-voltage protection (OVP), over-temperature protection (OTP), over-current protection (OCP), and under-voltage lockout (UVLO). These features help to ensure that the system is kept safe and stable, even under extreme conditions.

The LYT6068C-TL is a highly efficient and reliable device that provides enhanced power performance and reduced component counts, making it suitable for a diverse range of applications. It is ideal for use in high-performance AC-DC converters, and is specifically designed for low component count and miniaturized designs. It offers superior performance, low EMI and excellent load regulation, making it an ideal choice for cost-effective, reliable power management solutions.

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