NCL30051DR2G Integrated Circuits (ICs)

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PMIC - LED Drivers

The NCL30051DR2G is a non-dimming LED driver with AC input and direct PWM dimming control. It was designed to drive multiple parallel strings of white LEDs in DC input applications. The maximum output current is 500mA, in single string topologies. The device offers leading edge and trailing edge dimming, with dimming ratio up to 99%. It is available in an 8-pin SOIC package.

Application Field

The NCL30051DR2G LED driver is designed for applications such as LED bulbs, LED panels and LED decorative lighting, where excellent dimming performance and flexibility are required. It offers a simple dimming control, with consistent operation across a range of input voltages.

Working Principle

The NCL30051DR2G is a non-dimming LED driver with AC input and direct PWM dimming control. Its operating principle is based on a buck converter, which enables the device to operate efficiently over a wide range of input voltages and output current. The output current is set by an external sense resistor, while dimming is enabled by a direct PWM dimming pin. The dimming pin has a wide dimming range of 0-99%. The NCL30051DR2G also features an OVP (overvoltage protection) and a soft-start function.

Conclusion

In conclusion, the NCL30051DR2G LED driver is a highly efficient and flexible LED driver, designed for LED bulbs, LED panels and LED decorative lighting applications. It offers a wide range of input and output parameters and excellent dimming performance. The device supports both leading edge and trailing edge dimming, with dimming ratio up to 99%.

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