Pin No Pin Name Function 1 ZCD Zero Crossing Detection 2 GND * 3 CS Current sense 4 DRV Driver output 5 VCC Supplies the controller 6 VIN Input voltage sensing Brown *Out Pin Description Connected to the auxiliary winding, this pin detects the core reset event.
The con
NCL30081 Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting The NCL30081 is a PWM current mode controller targeting isolated flyback and non isolated constant current topologies.
The controller operates in a quasi resonant mode to provide high efficiency.
Thanks to a novel control method, the device is able to precisely regulate a constant LED current from the primary side.
This removes the need for secondary side feedback circuitry, biasing and an op
NCL30081 Features
* Quasi
* resonant Peak Current
* mode Control Operation
* Primary Side Sensing (no optocoupler needed)
* Wide VCC Range
* Precise LED Constant Current Regulation ±1% Typical
* Line Feed
* forward for Enhanced Regulation Accuracy AAxAYWG G
Datasheet Details
NCL30081
264.57 KB
Dimmable quasi-resonant primary side current-mode controller.
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