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Drivers/Primary side current mode controllers for LED lighting : NCL3008X

Drivers/Primary side current mode controllers for LED lighting : NCL3008X - EBV ELEKTRONIK

Drivers/Primary side current mode controllers for LED lighting : NCL3008X - Semi conductors and Modules for power factor correction

Drivers/Primary side current mode controllers for LED lighting : NCL3008X

Semi conductors and Modules for power factor correction

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Presentation

Thanks to a novel control method, the devices are able to tightly regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler.

The devices are highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. The devices are specifically intended for very compact, space efficient designs.

The NCL30085 supports 3 levels of log step dimming which allows light output reduction by toggling the main AC switch on and off to signal the controller to reduce the LED current point down to 5% of full load.

The NCL30086 supports analog and PWM dimming with a dedicated dimming input intended to control the average LED current ("Smart−dimmable”).

To ensure reliable operation at elevated temperatures, a user configurable current foldback circuit is also provided.

As a housing SOIC-8 NB is used for NCL30085 and NCL30088, whereas the NCL30086 uses SOIC-10.