XC6121E537MR-G

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XC6121E537MR-G belongs to the Supervisors category of PMIC (Power Management Integrated Circuit). It is designed for targeting LED back-lighting applications, enabling higher LED driving efficiency and longer LED life expectancy. This driver IC can provide digital dimming control, improving the brightness of LED display and saving on power consumption.

Working Principle:

The XC6121E537MR-G works on the concept of switching power conversion. It uses a high-side switch to provide a constant voltage to the LED driver. The power supply input to the driver is AC power, the output is a constant DC voltage which is connected to the LEDs. This driver controls the dimming by varying the output voltage level in linear or logarithmic functions, which converts a low-level input voltage to a higher voltage required by the LED array.

Application Field:

The XC6121E537MR-G can be used in general LED backlighting applications such as LCD TV, LCD monitor, cellular phone, digital camera, street lights, indoor- and outdoor signage, LCD projectors and engines for automotive lighting. It is used for powering LEDs with an optimal efficiency, providing a better visual quality in the display, lower power consumption and heat dissipation.

The XC6121E537MR-G supports a wide range of functions for LED driver applications such as dimming control and electrical overshoot protection. It also offers a built-in temperature compensation circuit that delivers precise LED brightness without the need for complex compensation circuits. It also supports various protection functions such as over voltage, under voltage and over current.

The XC6121E537MR-G is also capable of providing a precise dimming function over a wide range of input signals with a wide dimming control range and fast dimming speed. It is also capable of allowing PLL dimming frequency to be optimized and low ripple noise is provided to further reduce display rendition variance.

The XC6121E537MR-G is an efficient and robust solution for user applications and is designed for reaching above 80% efficiency. Its high level of integration makes it perfect for low-cost and space-saving applications. It is also RoHS compliant and has a wide temperature range from -40°C to +85°C.

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