NCP3066MNTXG

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NCP3066MNTXG is a powerful integrated single cell PMIC with Constant On-Time control topology from ON Semiconductor. It is used as an LED driver in the latest and upcoming generation of consumer electronics. This article will discuss the application field of NCP3066MNTXG, its working principle, and its advantages.

As a PMIC-LED driver, the NCP3066MNTXG is used to drive high-power LEDs (HP LEDs). It uses Constant On-Time (COT) control topology to achieve the desired output current and voltage. This topology makes it possible to drive HP LEDs with a very high efficiency of up to 95 percent. This eliminates the need for bulky and expensive external power supply components and saves board space by combining the driver into a single device.

The NCP3066MNTXG is designed to deliver up to 1.2A continuous source current, which is more than enough to drive a wide range of HP LED applications. Its adjustable current set point allows users to adjust the LED brightness in certain lighting applications. Besides, its wide input voltage selection from 2.5V to 24V makes it suitable for driving LEDs of all sizes with a wide range of input voltages.

The NCP3066MNTXG has an excellent thermal performance with a thermal shutdown point of up to 145℃. Therefore, when the device is near its maximum operating temperature, the device can detect this and shut itself down to prevent any damage. Besides, its ESD protection level is up to 8 kV, ensuring that the device is protected from high voltages which may be present in many applications.

The NCP3066MNTXG has other features such as a very low start-up voltage of only 0.7V, which allows it to be used in low-voltage applications, as well as an internal power-on reset circuit for resetting the device in case of a fault. Besides, the device has a Power Good signal to indicate when the device is ready for operation.

The working principle of the NCP3066MNTXG is based on the COT control topology. This topology utilizes a pulse-width-modulated signal, which is proportional to the input voltage, to control the switching of the device. The device is constantly turned on and off to deliver a constant current to the LED. By adjusting the pulse width of the signal, it is possible to accurately control the output current.

The NCP3066MNTXG is ideal for driving HP LED applications due to its high efficiency and low cost. It integrates all external components into a single device, making it suitable for compact and space-restricted systems. Its wide input voltage selection and excellent thermal performance make it suitable for a variety of LED applications. It is also protected against ESD making it a reliable and robust LED driver.

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