NCL30100SNT1G

NCL30100SNT1G is an integrated LED driver controller from On Semiconductor that offers excellent energy efficiency and performance for a range of applications, including lighting, medical devices, consumer electronics, and automotive.

Application Field

NCL30100SNT1G is an integrated LED driver controller that is designed to drive LEDs and direct LED lighting applications. It features built-in protection features, including over-voltage protection and over-temperature protection, that help ensure the longevity of LED device operation. It also offers adjustable LED current and dimming functionality that can be easily adjusted using external resistors. In addition, the NCL30100SNT1G is designed with a low power mode feature, which enables the controller to remain in a low power state when not in use.

This controller is suitable for a wide range of applications, including consumer electronics, medical devices, and automotive. It offers an integrated PWM dimming feature, which can be adjusted to reduce power consumption and provide an adjustable light output, making it ideal for energy-efficient lighting solutions. In addition, its low quiescent current consumption makes it a good choice for battery-operated devices, such as medical and automotive devices.

Working Principle

The NCL30100SNT1G requires an input voltage of up to 36V and supports four dimming methods, depending on the application: analog voltage, pulse width modulation (PWM), current sink/source, and external resistor. It also has a built-in power MOSFET that can be used to drive LEDs up to one amp, making it a suitable choice for driving high-power LEDs.

When the controller is enabled, an external resistor is used to set the desired LED current level. The controller then drives the LED by controlling the polarity of the driving voltage, so that when the polarity is positively charged, the LED will be on, and when the polarity is reversed, the LED will be off. Furthermore, NCL30100SNT1G includes a built-in over voltage protection feature that prevents the LED from being over driven.

In addition to LED driving, NCL30100SNT1G supports two separate LED lighting controllers: one for LED string 1 and one for LED string 2. This allows for two independent light output levels. Additionally, the device includes an I2C interface, providing an easy way to adjust the LED current with a host processor, and offers a frequency control feature for controlling the frequency of the dimming feature.

The NCL30100SNT1G is an integrated LED driver controller that offers excellent energy efficiency and performance for a range of applications. It provides adjustable LED current and dimming functionality, and its built-in protection features help ensure the longevity of LED operation. In addition, it supports two independent LED lighting controllers, which can be controlled via the I2C interface, and provides adjustable frequency control for dimming.