ILD4180XUMA1

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The ILD4180XUMA1 is a highly efficient, switch-mode current readjustment regulator with integrated compensation which provides the necessary control and drive circuitries to power up LEDs in Low Voltage Applications. It is a step-down voltage regulator designed to drive up to an array of four 1W LEDs from any standard power supply or battery. This device combines high efficiency and low component count, making it a reliable, convenient and cost-effective solution for LED lighting applications.The ILD4180XUMA1 is an off-the-shelf device designed to drive up to four 1W LEDs from a single input voltage source. It features integrated current regulation over a wide input voltage range and a minimum on-time of 230ns, making it suitable for low-voltage sets of LEDs. Additionally, the device has an adjustable current limit that can be set up to 25mA per LED, and also includes auto-track dimming, which ensures that the LEDs do not get dimmed simultaneously when the input voltage is below the maximum current limit. The device is also capable of providing up to four constant current outputs, which are adjustable over a wide current range, starting at 10mA up to 250mA.The working principle of ILD4180XUMA1 is based on buck converter topology. The controller is a switching-mode DC-DC converter consisting of a controller, an inductor, a set of output capacitors, and a sense resistor. The circuitry of the ILD4180XUMA1 is implemented using integrated MOSFETs, which allows for a high efficiency up to 96%. The device is designed to operate from a wide range of input voltages from 2.5V to 6V, with a supply current of 8mA. Additionally, the device features an adjustable output range from 10mA to 25mA per LED.The ILD4180XUMA1 can be used in a variety of LED lighting applications, such as LED emergency lighting, architectural lighting, stage lighting, and LED street lighting. Additionally, it can also be used in LED displays, LED Signs, LED strip lighting, and LED spot lighting.Thanks to its high efficiency and low dedicated components, the device is a perfect solution for low-voltage LED lighting applications. It provides improved efficiency, reduced complexity, increased reliability, and reduced system cost. The device also features low EMI, making it suitable for EMI-sensitive applications. Furthermore, the ILD4180XUMA1 is capable of providing up to four independently adjustable constant current outputs, making it a perfect choice for low-voltage multi-LED lighting applications.

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