MP24893DQ-LF-Z

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The MP24893DQ-LF-Z is a pulsed High Brightness LED (HBLED) Driver that is highly integrated and is specifically designed to improve the system efficiency and reduce the design\'s size in a variety of application fields, such as cell phone, automobile, television back lighting, medical device, and so on.

The MP24893DQ-LF-Z has several features that make it ideal for applications that require high efficiency and performance. It has a +4V to +40V input voltage range and a maximum available LED current of up to 3A. Furthermore, it is capable of supporting up to four strings of LEDs with up to 500mA per string. In addition, the MP24893DQ-LF-Z also supports a wide variety of light modulation modes, such as pulse width modulation or Frequency modulation, and can be configured to operate in either linear or pulse-by-pulse dimming mode.

The MP24893DQ-LF-Z is a highly efficient device with up to 94% efficiency. This makes it one of the most efficient HBLED drivers in the market. It is also capable of reducing switching loss and noise, thanks to its synchronous rectification and active clamp turn-off features. Moreover, its unique architecture allows for the reduction of overall heat dissipation, thereby significantly improving system efficiency and reducing the size of the design.

The working principle of the MP24893DQ-LF-Z is quite simple. The device consists of two main stages, the power stage and the control stage. The power stage is responsible for regulating the current and regulating the brightness of the LEDs, while the control stage is responsible for providing the input signal to drive the power stage and governing the different operating modes and dimming levels.

The MP24893DQ-LF-Z has a 4-bit pulse-width modulation (PWM) controlled input voltage level. This input voltage level is sampled and compared to an internal reference voltage. Depending on the comparison result and the programmed dimming level, the MP24893DQ-LF-Z will vary the current in the LED string and the resulting LED brightness according to the programmed dimming level. Moreover, the device also supports Frequency Modulation (FM) dimming. In FM mode, the LED brightness is controlled by varying the frequency of the PWM signal.

The MP24893DQ-LF-Z is an ideal choice for HBLED applications that require high efficiency, performance and flexibility. Its ability to support up to four strings of LEDs with up to 500mA per string and wide range of dimming control options make it an excellent choice for a wide variety of application fields. The highly efficient device also enables the reduction in overall heat dissipation, increasing system efficiency and reducing the size of the design, thereby providing a cost-effective and reliable LED driver solution.

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