LNK564DG-TL

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LNK564DG-TL is a type of power management integrated circuit (PMIC) that integrates an AC/DC converter and an offline switcher to provide a compact solution for low-power AC/DC applications. The device combines a synchronous rectification method with an efficient Transition-Mode PWM (TM-PWM) architecture, providing a high power density with low system cost. It has a wide input voltage range of 85 to 264VAC and is capable of operation up to an input frequency of 400kHz. The output voltage regulation is maintained over a wide load range due to its accurate current-limit control and peak current-mode control. The device is equipped with a low-side MOSFET and an isolated transformer, which helps to minimize system components and lower the overall cost.

The device is also feature packed and includes several protections such as over-voltage protection, over-temperature protection, over-current protection, under-voltage protection, and hiccup-mode over-current protection. The device is equipped with a variety of control and enable pins, allowing users to easily customize their system for different applications. The device also contains a power-on reset circuit, so that when the power is off, the device will automatically reset itself and supply a stable output power.

The working principle of the LNK564DG-TL PMIC is based on the transition-mode pulse-width modulation (TM-PWM) architecture. This method is used to achieve high efficiency by switching the power at the leading-edge of the PWM signal. This is achieved by modulating the duty cycle of the PWM signal in order to provide the desired output voltage. The TM-PWM control also gives the device a wide input range, so it can be used in both low voltage and high voltage applications.

The LNK564DG-TL is well suited for compact, low-power applications such as LED lighting, consumer electronic appliances, telecommunications equipment, and consumer equipment. The device\'s low standby power consumption and integrated protections make it an ideal solution for the energy-efficient designs required by industry standards such as Energy Star and CEC.

In summary, the LNK564DG-TL PMIC is an integrated AC/DC converter and offline switcher that combines an efficient TM-PWM architecture for high power density and low system cost. It features a wide input voltage range, accurate current-limit and peak current-mode control for smooth output voltage regulation, a low-side MOSFET and an isolated transformer for minimized system components, and several integrated protections. The device is ideal for low-power applications such as LED lighting, consumer electronic appliances, telecommunications equipment, and consumer equipment.

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