LNK405LG

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The LNK405LG IC is a high-performance, low standby and low energy consumption power integrated system for LED population. It is an innovative IC released by Power Integrations, a leading manufacturer of integrated circuits for power management. It is designed for applications including light-emitting diode (LED) controls, active power Factor correction (PFC), off-line dimming and other various lighting applications. This article will discuss the features and working principles of LNK405LG in the field of power management integrated circuits for LED drivers.

The LNK405LG contains numerous features that make it an attractive and attractive IC for powering LED applications. It uses low-cost SOT23-5 miniature package, and provides over-current protection and overvoltage protection, which can ensure the safe and reliable operation of the LED lighting application under any circumstance. It has an operation current range of 2mA to 6A, enabling it to be used in a variety of LED driver applications, such as LED display, LED ceiling light, LED tunnel light, LED street light and so on. It also provides accurate current regulation with a wide voltage range of 6V to 40V, helping to achieve energy-efficient and stable LED lighting.

In addition, the LNK405LG integrated circuit is designed to optimize power management to meet stringent standards for energy efficiency require in lighting applications. This is achieved by a control system composed of a switching mode PWM regulator, an MOSFET switch and an optocoupler. The system achieves low standby mode by implementing a sleep mode, in which the LED driver is powered off and wakes up only when the LED driver is switched on. The system also implements an adaptive current mode control algorithm, which can regulate the LED current according to the output voltage and current dynamic changes, thus ensuring the accuracy of the light output.

Moreover, the LNK405LG integrated circuit also offers a high EMI filter, which helps to reduce electromagnetic interference during operation. It also supports a wide temperature range of -40 to 85℃, and integrates self-protection functions including output over-current protection, output over-voltage protection, and temperature protection. These features can increase the system reliability and make the device suitable for any application environment.

In conclusion, the LNK405LG IC is an ideal choice for LED lighting application due to its features mentioned above. It is able to achieve energy-efficient and safe operation by precise current regulation, and provides an extremely efficient system for LED illumination with advanced features. It is expected to become one of the leading products in the field of PMIC - LED Drivers.

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