NCL30060B4DR2G

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LEDs have become a popular light source in today’s world, as they offer many advantages over traditional lighting sources. The NCL30060B4DR2G is an LED driver from ON Semiconductor; it is a specialized power management integrated circuit (PMIC-LED Driver). The device provides an output current up to 4A with voltage regulation capabilities for a wide range of LED applications. This article will discuss an overview of the application field and working principle of ON Semiconductor’s NCL30060B4DR2G PMIC-LED driver.

Application Field

NCL30060B4DR2G from ON Semiconductor supports multiple lighting applications and a wide input voltage range from 9V to 65V. LED dimming ratio can be set with a programmable dimming signal (0V to 10V, 4mA step) that is independent of the LED operating temperature. This LED driver IC has both Constant Current (CC) and Constant Voltage (CV) regulation modes to control the LED current accurately. It also has an output power limit feature that limits the total LED power to a maximum pre-set value.

ON Semiconductor’s NCL30060B4DR2G can be used in many applications, such as LED lighting systems, indoor lighting, and general illumination. Furthermore, it can also be used for LED sign boards, LED tubes, LED flood lightings, LED luminaries, LED decorative lighting, LED strips, LED streetlights, LED spotlights, and LED Lamps. These LED drivers can also be used in entertainment systems, stage show lights, ornamental lights, streetlights, as well as automotive and industrial applications.

Working Principle

NCL30060B4DR2G operates using a two-stage cycle control scheme that includes two feedback circuits - one for constant voltage regulation and one for constant current regulation. The driver chip is composed of an integrated control and switching circuit, a current sense amplifier, an error amplifier, a voltage reference, and a control logic unit. In a closed-loop control, the voltage and current feedback signals are continuously compared by the error amplifier and then corrected. The control logic unit controls the duty cycle of the integrated power switch, which adjusts the output current to match the output voltage.

The output voltage of the driver is set by an external voltage divider connected to the voltage feedback pin. The output current of the driver is set by connecting a sense resistor to ground and then using the current sense amplifier to convert the sense voltage into a voltage signal. The voltage signal is then compared to the reference voltage or a programmed PWM signal to control the output current of the LED driver.

ON Semiconductor’s NCL30060B4DR2G has a built-in over-current and under-voltage protection to guard the system against accidental faults. Moreover, it also has a thermal protection feature that limits the internal temperature of the device by automatically adjusting the output current and power. This device supports various operating modes such as parallel, free running and cycle-by-cycle operation for different kinds of load transitions.

The NCL30060B4DR2G is a high efficiency PMIC-LED driver from ON Semiconductor. It can deliver up to 4A of output current with voltage regulation capabilities for a wide range of lighting applications. It has a wide input voltage range from 9V to 65V and can be used for multiple lighting applications such as LED lighting systems, indoor lighting, and general illumination. The device operates using a two-stage cycle control scheme with over-current and under-voltage protection, and thermal protection to protect the system from faults.

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