HV9982K6-G

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Power management integrated circuits (PMICs) have become essential components in today\'s electronics platforms. LED drivers are one type of PMICs designed to provide a low-cost, efficient means of supplying and controlling power to LEDs. The HV9982K6-G is one such LED driver designed to optimize power control and offer high-level performance. This article will discuss the application field and working principle of the HV9982K6-G.

Application Field of the HV9982K6-G

The HV9982K6-G is specifically designed for use in high-brightness LED (HBLED) lighting applications such as automotive lighting, flashlight, LCD backlight, automotive interior lighting, task-lighting, and consumer electronics. The design of the device enables independent control of up to six strings, each with up to 9 LEDs and with PF-Correction technology as well as support for 1, 2 or 3 strings per feed. This broad range of applications is made possible by the ability to programmatically adjust the IC\'s output. The HV9982K6-G also features a short-break protection function and open-circuit protection function, allowing it to operate safely through harsh environments.

Working Principle of the HV9982K6-G

The HV9982K6-G is a synchronous step-down LED driver controller. In operation, the device receives a DC voltage supply and controls an inductor/Capacitor (LC) rectified buck converter to convert the input voltage to a desired lower output voltage. The output voltage is then passed through an internal current register before being delivered to the LED string. The controller monitors the load current and adjusts the output accordingly. The HV9982K6-G provides the necessary protection for the LED via the on-chip overload, overvoltage and over-temperature protection circuits. The chip also supports dimming functionality by allowing the output voltage and current to be adjusted in order to control the brightness of the LED string.

Conclusion

The HV9982K6-G is a highly versatile LED driver designed for high-brightness LED lighting applications. The IC operates by receiving a DC voltage and using an LC rectified buck converter to adjust the voltage, which is then passed through an internal current register before being delivered to the LEDs for control. The HV9982K6-G provides stable, reliable performance and adjusts the output automatically for optimized power control. The design of the device also includes several safety features, making it suitable for even the harshest environments.

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