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NCL30080 - Quasi-Resonant Primary Side Current-Mode Controller

General Description

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

Connected to the auxiliary winding; this pin detects the core reset event.

Key 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 1 AAx = Specific Device Code x = E or Z A = Assembly Location.
  • Low LED Current Ripple.
  • 250 mV ±2% Guaranteed Voltage Reference for Current Regulation.
  • ~ 0.9 Power Factor wi.

📥 Download Datasheet

Datasheet Details

Part number NCL30080
Manufacturer onsemi
File Size 204.68 KB
Description Quasi-Resonant Primary Side Current-Mode Controller
Datasheet download datasheet NCL30080 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
NCL30080 Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting The NCL30080 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 optocoupler. The device is highly integrated with a minimum number of external components. A wide VCC range simplifies the design process and allows a single design to support a wide LED forward voltage range. A robust suite of safety protection is built in to simplify the design.