NCL30188BDR2G Integrated Circuits (ICs)

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PMIC LED Drivers have become increasingly popular due to the versatility and flexibility of their functions. NCL30188BDR2G, a type of PMIC LED driver, is no exception. It is a high-efficiency and high-voltage drive for LED strings to circumvent conventional high current requirements and reduce power consumption. It additionally supports Direct AC mains (0-277VAC) without any transformer, making it easy to install anywhere in the world.

The NCL30188BDR2G is a complete stand-alone power supply with a current mode boost converter that efficiently drives LEDs with a wide range of forward voltage. Its power efficiency is 92%, and the voltage is adjustable up to 28V for up to 17LED at a full load current of 85mA. Its operating temperature range is -25°C to 125°C and its MTBF exceeds 120k hours.

In terms of application field, the NCL30188BDR2G is a perfect device for outdoor lighting applications such as street lighting, parking lot lighting, as well as indoor lighting such as the commercial, industrial, and retail market. Its wide range operating input and highly efficient output make it an ideal solution for many energy-efficient lighting applications that require current-mode regulation, high efficiency, and long-term reliability.

In terms of working principle, NCL30188BDR2G is a Pulse Frequency Modulation (PFM) device, which means that it works based on frequency modulation of the input signal. It converts the DC input power to a pulsed signal, which is then sent through an averaging filter that averages out the pulses and produces a steady current output. This method of transforming the input power to a constant, controlled output is known as buck-boost conversion, or sometimes referred to as PFM LED or LED dimmer controllers.

NCL30188BDR2G is equipped with two external components: a current sensing resistor and an inductor. The current sensing resistor, also known as a current sense resistor, is placed between the LED and its driver. This resistor monitors the current and helps to adjust the output current, thus maintaining a stable current across the LED’s. The inductor is a key component of the buck-boost converter, and it helps to convert the DC power to a pulsed signal for the subsequent averaging filter. This conversion ensures that the output current is constant.

NCL30188BDR2G is integrated with a thermal-shutdown protection and over-current protection. This protection is triggered when the temperature or current of the device exceeds certain preset values, protecting the device and the connected LED’s from any damage. This feature provides additional convenience and security while the device operates in industrial and outdoor conditions.

In conclusion, the NCL30188BDR2G is an energy-efficient, high-voltage LED driver that provides a range of features and convenience. It is a great solution for LED-based lighting applications that require efficient energy and current regulation. Its use of Pulse Frequency Modulation and its various protections make it reliable and safe to use in a wide variety of application fields.

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