LNK6666K

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PMIC, or power management integrated circuits, are the components that control the power supply and allow a device to function properly. The LNK6666K is an AC DC converter, an offline switcher IC specifically built for LED lighting applications.

Overview of the LNK6666K

The LNK6666K is a highly efficient offline switcher IC that is adjustable from 1.5 W to 8 W and provides over-voltage, over-temperature, and short-circuit protection. It is suitable for use with incandescent lamps, halogen lamps, and LEDs, depending on the design of the application.

The LNK6666K can operate from an input voltage of between 85V and 265V AC, and the output voltage is adjustable from 10V to 20V DC with an on-chip current limit of 0.22A. The IC also features a standby power consumption of less than 0.2 W while in standby mode.

Advantages of the LNK6666K

The LNK6666K has many advantages over other offline switcher ICs due to its efficiency, low power consumption and integrated over-voltage and over-temperature protection features. This makes it suitable for applications where the power consumption needs to be kept to a minimum. Also, the adjustable current limit makes it suitable for applications where the output current needs to be limited for safe operation.

Other advantages include the ability to dim the LED light output which is possible with the integrated dimming functionality, eliminate external components and simplify the design, and the ability to provide a very wide input voltage range.

Application fields of the LNK6666K

The LNK6666K is suitable for use in a variety of LED lighting applications such as LED streetlighting, LED decorative lighting, LED security lighting, LED entrance lighting and LED hallway lighting. It is also suitable for LED lighting applications in automotive, aviation and marine industries.

It can also be used in general lighting applications such as chandeliers and wall sconces, as well as office lighting, where its efficiency and low power consumption are particularly beneficial.

Working principle of the LNK6666K

The LNK6666K works by first an input AC voltage to the device which is rectified by an integrated power switch. The switch is then followed by a low ripple current mode control circuit. The control circuit then conveys a fixed voltage or variable voltage to the output of the device.

The adjustable output current limit feature of the IC allows the AC input voltage to be regulated to the required output voltage and current. The integrated low-ripple current mode control circuit also helps to ensure the efficiency of the device and reduce the switching losses.

Finally, the integrated protection features of the device helps to ensure the safety of the device in the event of an over-voltage, over-temperature or short-circuit event.

Conclusion

The LNK6666K is an ideal ACDC converter for LED lighting applications, thanks to its high efficiency, low power consumption, adjustable current limit and integrated protection features. It is suitable for use in a variety of LED lighting applications, from streetlights to automotive lighting and much more.

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