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SSL4120 - Resonant power supply controller

General Description

The SSL4120 integrates a Power Factor Corrector (PFC) controller and a controller for a Half-Bridge resonant Converter (HBC) in a multi-chip IC.

It provides the drive function for the discrete MOSFET in an up-converter and for the two discrete power MOSFETs in a resonant half-bridge configuration.

Key Features

  • 2.1 General features.
  • Integrated PFC and HBC controllers.
  • Universal mains supply operation from 85 V to 305 V (AC).
  • High level of integration resulting in a low external component count and a cost effective design.
  • Enable input to enable only the PFC or both the PFC and HBC controllers.
  • On-chip high-voltage start-up source.
  • Stand-alone operation or IC supplied from external DC source 2.2 PFC controller features.
  • Boundary mode operation with on-time control.

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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.

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SSL4120 Resonant power supply controller IC with PFC for LED lighting Rev. 2.1 — 18 February 2014 Product data sheet 1. General description The SSL4120 integrates a Power Factor Corrector (PFC) controller and a controller for a Half-Bridge resonant Converter (HBC) in a multi-chip IC. It provides the drive function for the discrete MOSFET in an up-converter and for the two discrete power MOSFETs in a resonant half-bridge configuration. Efficient PFC operation is achieved by implementing functions for Quasi-Resonant (QR) operation at high-power levels and QR with valley skipping at lower power levels.