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NCL30082 - Dimmable Quasi-Resonant Primary Side Current-Mode Controller

General Description

Pin No Pin Name Function 1 SD Thermal Fold back and shutdown 2 ZCD Zero Crossing Detection 3 CS Current sense 4 GND 5 DRV Driver output 6 VCC Supplies the controller 7 VIN Input voltage sensing Brown Out 8 DIM Analog / PWM dimming Pin Description Connectin

Key Features

  • Quasi.
  • resonant Peak Current.
  • mode Control Operation.
  • Primary Side Sensing (no optocoupler needed).
  • Wide VCC Range.
  • Source 300 mA / Sink 500 mA Totem Pole Driver with 12 V Gate Clamp.
  • Precise LED Constant Current Regulation ±1% Typical.
  • Line Feed.
  • forward for Enhanced Regulation Accuracy.
  • Low LED Current Ripple.
  • 250 mV ±2% Guaranteed Voltage Reference for Current Regulation.
  • ~0.9 Power Factor w.

📥 Download Datasheet

Datasheet Details

Part number NCL30082
Manufacturer onsemi
File Size 355.38 KB
Description Dimmable Quasi-Resonant Primary Side Current-Mode Controller
Datasheet download datasheet NCL30082 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
NCL30082 Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Fold-back The NCL30082 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 robust suite of safety protection is built in to simplify the design. This device supports analog/digital dimming as well as thermal current fold−back.