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iW3658 - Single-Stage SSL LED Driver

Description

The iW3658 is a highly integrated, high-performance off-line power supply controller for phase-cut dimmable LED luminaires.

It uses patented PrimAccurate™ primary-side sensing technology to regulate output current accurately without the need for a feedback circuit.

Features

  • Isolated/non-isolated off-line 120VAC/230VAC LED driver up to 15W (Note 1).
  • Wide line frequency range (45Hz.
  • 66Hz).
  • Excellent dimmer compatibility xx Leading-edge dimmer xx Trailing-edge dimmer.
  • Low BOM cost.
  • Integrated high-voltage MOSFET.
  • Single-winding inductor.
  • Internal start-up without the need for high voltage circuit.
  • Closed-loop constant current regulation.
  • Built-in LED current derating a.

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Full PDF Text Transcription

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iW3658 Single-Stage SSL LED Driver with Integrated High Voltage MOSFET for Dimmable Retrofit Lamps up to 15W 1 Description The iW3658 is a highly integrated, high-performance off-line power supply controller for phase-cut dimmable LED luminaires. It uses patented PrimAccurate™ primary-side sensing technology to regulate output current accurately without the need for a feedback circuit. The iW3658 operates at boundary conduction mode to achieve high efficiency and low EMI. With advanced dimming control technology, the iW3658 can operate with most wall dimmers including leading-edge dimmers (R-type or R-L type) and trailing-edge dimmers (R-C type). The iW3658 operates in buck-boost mode to regulate current to the output LEDs.
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