MP2489DQ-LF-P Integrated Circuits (ICs)

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PMIC (Power Management IC) LED Drivers are an important component of any device or machine that uses LED-based lighting. PMIC LED Drivers provide the power required to turn on or off the LED or to change its brightness, depending on the application. The MP2489DQ-LF-P IC is a high-quality device used in many products that need a reliable and efficient way to regulate their LED lighting. In this article, we will discuss the application field and working principle of the MP2489DQ-LF-P in detail.

Application Field of MP2489DQ-LF-P

The MP2489DQ-LF-P is a low voltage Power Management IC designed for powering high-current LEDs. It is designed for applications such as LCD module backlight, projector lamps, linear dimmers, and other general-purpose lighting applications. Due to its efficiency and reliability, it is highly sought after by LCD manufacturers and is used in the latest LCD models.

The MP2489DQ-LF-P is capable of providing up to 12A of current and features a low start-up voltage of 2.7V. It also features a PWM dimming function and two output channels, making it ideal for applications that require multiple outputs. This device is also RoHS compliant and comes in a small, 16-pin, QFN-24 package.

In addition, the MP2489DQ-LF-P is compliant with the latest LED safety regulations and requirements, which ensures safety and reliability when used in applications that require LED lighting.

Working Principle of MP2489DQ-LF-P

The MP2489DQ-LF-P has several control pins that allow the user to control the LED lighting. One such control pin is the Enable pin, which is used to turn the LED on or off or to dim the LED. The Enable pin is set to “Low” to turn the LED off, and is set to “High” to turn the LED on. The PWM pin is used to control the brightness of the LED. When a PWM signal is applied to the PWM pin, the LED dimming function will be triggered, and the LED brightness can be adjusted accordingly. The PWM frequency can be adjusted from 500Hz to 20Khz, making it easy to adjust the LED brightness for different applications.

In addition, the MP2489DQ-LF-P also provides a programmable soft start up for added safety, which means that the power supply can be safely and gradually increased when powering on the LED. The device also has over current protection, which ensures that the LED is automatically disabled if the current draw exceeds the set limit. This type of protection prevents overloading of the LED and extends its life.

Finally, the MP2489DQ-LF-P also has two additional control pins, polarity and voltage adjust. The polarity pin is used to set the direction of the current flow, while the voltage adjust pin is used to control the voltage output of the device. Both of these pins make it easy to adjust the power supply for different applications.

Conclusion

The MP2489DQ-LF-P is a low voltage Power Management IC that provides high-quality performance for applications that require LED lighting. With its adjustable current and voltage output, the device is able to meet the needs of many applications. In addition, its various control pins enable it to provide enhanced safety and reliability, making it one of the most widely used devices for LED lighting applications.

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