HV9921N3-G

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The HV9921N3-G is a linear, high-efficiency LED driver in the form of a monolithic integrated circuit (MCI). It is designed for controlling the current of a variety of LED configurations in AC, DC and PWM application fields. This all-in-one IC provides 3A of continuous output current and 6A of peak output current, multiple voltage operation up to 32V, as well as low-side sensing and dimming control. As such, the HV9921N3-G PMIC - LED Drivers can be used in a number of different applications including AC, DC, and PWM LED driving, allowing for a wide range of potential applications.

The core of the device is the high-voltage step-down controller, which is responsible for the conversion between the input voltage, typically 24V and 48V, to the output voltage regulated by the external feedback voltage and with the help of the current-sensing comparator. The converter provides high-power-factor operation, thus achieving a minimum of 93 % power factor. With the help of the constant-on-time control feature, the IC can realize self-sustaining current source LED driving and multiple LED combinations.

The major features of the HV9921N3-G that make it highly suitable for LED driving applications include its ability to provide 3A of continuous output current and 6A of peak output current, its wide input voltage range of 14V to 32V, and its low-side sensing and dimming control capabilities. In addition, the device has a number of features that make it easy to configure and use. These include programmable soft-start, as well as adjustable frequency ranging from 50kHz to 750kHz.

The HV9921N3-G is an ideal LED driver for applications ranging from decorative lighting, to indoor and outdoor LED lighting, to LED signage, and more. For example, it can be used in LED floodlight applications, where it can provide illumination at both the low-end and high-end levels, as well as in RGB lighting applications, where its dimming control capabilities can be used to create dynamic color changes.

Overall, the HV9921N3-G PMIC - LED driver is an excellent choice for applications requiring high-efficiency, high-power output, and wide voltage operation. Its multiple features make it a highly versatile and configurable device, which makes it suitable for a wide range of applications.

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