BD9397EFV-GE2

PMIC - LED Drivers - BD9397EFV-GE2 Application Field and Working Principle

The BD9397EFV-GE2 is a state-of-the-art high-side, step-down DC/DC converter with several features designed specifically for driving LEDs. Its integration and versatile feature set makes it ideal for driving LED backlighting for LCD displays and LED lighting applications.

The BD9397EFV-GE2 is a controller IC with a 6-bit programmable switching regulator that provides 1.2V to 50V output. With a wide range of output voltages, it can be used to drive any common LEDs, including low-power LEDs as well as high-power LEDs, making it an ideal solution for any LED backlight or LED lighting application.

The BD9397EFV-GE2 has a high-frequency switched converter architecture. This means that it operates at a high frequency and utilizes a switch inside the converter to turn it on and off at a high rate. When the switch is open, the output of the converter is set to the input voltage, while when the switch is closed, the output of the converter is set to the programmed output voltage. The output current is set via an external sense element.

The BD9397EFV-GE2 also features a built-in dimming logic, allowing for the implementation of various dimming methods. Its flexible dimming logic can be used to control the brightness of the LEDs by varying the output voltage, as well as dimming them to very low levels. The dimming speed can also be adjusted, allowing for rapid changes in brightness of the LEDs or a smooth, gradual dimming depending on the application.

The BD9397EFV-GE2 also provides a built-in current Sense amplifier, which allows for accurate current regulation of the output. This allows for precise regulation of the output current, which is important for maintaining accurate brightness control of the LEDs. The built-in current sense amplifier also allows for the measurement of the output current, allowing for the generation of status information and monitoring protection circuits.

The BD9397EFV-GE2 is a versatile solution for driving LEDs for various applications, such as backlighting for LCD displays, LED lighting, etc. Its flexible feature set and integration make it ideal for any LED application, as well as any other application requiring precise current or voltage control.