LNK460VG

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Power management integrated circuits (PMICs) are commonly used by manufacturers to provide custom power solutions in their products. LED drivers are one specialized type of PMICs that enable the safe and efficient regulation of LED power. The LNK460VG is a family of highly efficient pulse-width-modulated (PWM) LED drivers that can be used for many types of lighting and display applications. In this article, we will discuss the various application fields and working principles of the LNK460VG.

Application Field of LNK460VG

The LNK460VG is often used in applications such as outdoor and general lighting, signal lamps, backlighting, and displays. It can be used in a variety of lighting conditions, including cold and hot starting conditions. The device is capable of driving up to 10 LEDs due to its maximum output current of 20 mA. Additionally, it is configurable via a digital I2C interface, making it ideal for applications with very specific general lighting requirements.

The LNK460VG is suitable for a wide range of lighting solutions, including drivers for warm dimmable candle lamps, drivers for high-contrast indoor lighting systems, drivers for outdoor lighting billboards, drivers for outdoor flashing lamps, and drivers for decorative lighting used for bar counters and other retail displays. The device is also capable of driving up to 10 LEDs in series, making it a versatile solution for many lighting applications.

Working Principle of LNK460VG

The LNK460VG is a family of pulse-width modulated (PWM) LED drivers. The device utilizes a proprietary current balancing scheme to ensure that the LED currents remain uniform. This is achieved by comparing the LED current to a reference current in a closed-loop control loop. The LED current is then adjusted accordingly.

The LNK460VG features a few input protection features to ensure its safety and reliability, such as an adjustable over-voltage protection feedback circuit and a separate over-temperature protection circuit. Additionally, the device includes an on/off switch to enable power saving when the LED is not in use and an adjustable pre-charge option to improve starting up in cold temperatures.

The device is highly efficient, boasting up to 94% efficiency when driving 10 LEDs in series. The current level is determined by an external resistor, allowing for further customization and control.

Conclusion

The LNK460VG is a family of PWM LED drivers that is highly versatile and efficient. With its ability to drive up to 10 LEDs in series and to be configured via I2C, the device is ideal for many lighting solutions. Additionally, its various safety features and high efficiency make it an attractive option for manufacturers who need a reliable and efficient LED driver solution.

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