HV9931LG-G Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LED drivers are one of the most popular PMIC products on the market today, thanks to the popularity of general lighting and automotive lighting designs. The HV9931LG-G is a current-mode PWM controller that is specifically designed to drive LED\'s. It is a simple, efficient, and economical solution for LED driver designs.

The HV9931LG-G features an integrated 500V high-voltage power switch and provides an adjustable PWM current sink for LED control. Its two integrated comparators are used to detect the AC input waveforms and the dimming control signal, allowing the device to offer both analogue and digital dimming capabilities. When coupled with an external low RDSON MOSFET and inductor, the device can achieve up to 95% efficiency, making it an ideal solution for any high efficiency LED driver applications.

The HV9931LG-G requires a single input supply voltage ranging from 10V to 42V and operates from a wide range of AC line input voltages from 80V to 270V. In addition, the device has a minimum startup voltage of 8V, making it suitable for a variety of applications. It also provides a wide array of protection features, including over-voltage protection, over-current limit protection, and over-temperature protection.

In terms of LED lighting applications, the HV9931LG-G is suitable for a variety of LED drivers including general lighting and automotive lighting designs. It is capable of delivering up to 200W of power, making it suitable for a large range of lighting designs. Additionally, the device offers excellent dimming performance, making it a viable option for high-end LED lighting applications.

The working principle of the HV9931LG-G is simple. The device utilizes a current-mode PWM control scheme, which is triggered by the input AC waveform and dimming signals. The PWM control scheme then drives a low RDSON external MOSFET, which in turn drives the LED load. As the LED load changes, the device responds accordingly and adjusts the duty cycle of the MOSFET such that the LED current remains constant. This allows for a stable and efficient LED driver solution.

In conclusion, the HV9931LG-G is a simple, efficient, and cost-effective LED driver solution. It offers a wide range of features, including an integrated 500V high-voltage power switch, adjustable PWM current sink, and an array of protection features. Additionally, it offers excellent dimming performance, making it an ideal solution for any high-efficiency LED driver application.

The specific data is subject to PDF, and the above content is for reference