LNK4023D-TL

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Power Management Integrated Circuit (PMIC) is an integrated circuit used in a variety of applications including power management and regulating power flow. It is composed of a large number of components that work together to enable the safe, reliable, efficient and economical operation of power and load systems. PMICs are designed to stabilize power, reduce noise, increase efficiency, and extend product life. The most common types of PMICs are AC/DC Converters and Offline Switchers.

The LNK4023D-TL is a synchronous buck offline switcher PMIC with integrated high voltage power MOSFET for low standby power and cost efficient applications. The LNK4023D-TL is suitable for use in flyback LED drivers, AC/DC adapters, LED lighting, and Uninterruptible Power Supplies (UPSs). It features a wide range of operating input voltage range from 88-265VAC, low stand-by power consumption, and integrated high voltage MOSFETs.

The LNK4023D-TL operates in critical conduction mode with adjustable frequency. The chips include robust fault protection functions, such as input overvoltage protection, output overvoltage protection, output short circuit protection, and over-temperature protection. The integrated overvoltage protection feature monitors the output of the power stages and disconnects it when the level reaches a preset threshold. The LNK4023D-TL also has low start-up current, low power dissipation, and a temperature operating range of -40 to +85 degrees Celsius.

The LNK4023D-TL has a wide input voltage range from 88 – 265 VAC. This feature allows the device to be used in a variety of applications and input power sources. The LNK4023D-TL also includes a start-up circuit and an adjustable timer for soft start, a current limit setting circuit, a feedback voltage accuracy circuit and an overvoltage protection circuit.

The LNK4023D-TL also has an integrated high voltage power stage with integrated high voltage MOSFET. The integrated MOSFETs provide high efficiency and superior electrical performance. The high voltage MOSFETS allow for a high degree of reliability and excellent power conversion efficiency. The LNK4023D-TL also has a wide input voltage range and is suitable for applications requiring high precision. This feature allows the device to be used in applications such as medical devices, automotive and consumer electronics.

The LNK4023D-TL has a constant on-time control system that ensures steady operation of the power stage. It also has an adjustable frequency which allows the user to set the desired frequency of operation. The LNK4023D-TL also includes a signal generator for frequency control, overvoltage protection and current limit protection.

The working principle of the LNK4023D-TL is based on the synchronous buck topology. In this type of converter, a high voltage power MOSFET is connected across the input and load. When the input voltage is greater than the output voltage, the power MOSFET is switched on and the load is connected to the input voltage. When the input voltage is lower than the output voltage, the power MOSFET is switched off and the load is connected to the output voltage.

The LNK4023D-TL also includes a PFM Controller for enabling the switching frequency control. The PFM Controller is used to monitor the output voltage and switch on or off the high voltage power MOSFET depending on the output voltage. The PFM Controller also ensures that the output voltage is maintained within the desired range.

The LNK4023D-TL is a highly efficient and cost-effective converter for applications such as LED lighting, AC/DC adapters, and Uninterruptible Power Supplies (UPSs). The integrated high voltage MOSFETs provide high efficiency and excellent power conversion performance. The high voltage MOSFETs are integrated on the LNK4023D-TL and they are designed to reduce the risk of short-circuiting, over-temperature and overvoltage. The wide input voltage range and adjustable frequency provide flexibility and reliability.

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