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SSL3401HN - Low voltage dimmable controller

General Description

The SSL3401HN is a Switched Mode Power Supply (SMPS) controller IC.

It operates in combination with a phase cut dimmer and a 12 V (AC or DC) low voltage electronic or magnetic transformer.

It is designed to drive LED devices and include a dimmer conduction phase detector.

Key Features

  • Easy migration to existing lighting control infrastructure.
  • Support most available dimming and low-voltage transformation solutions.
  • Excellent stability of LED current.
  • Double PI controllers to enhance the line regulation of the LED current.
  • Optimized dimming curve for low-voltage transformer compatibility.
  • Automatic supply frequency detection for seamless operation with 50 Hz, 60 Hz or DC sources.
  • Dimmer conduction angle detection.
  • Coil current limitatio.

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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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SSL3401HN Low voltage dimmable controller for LED lighting Rev. 2 — 28 January 2014 Product data sheet 1. General description The SSL3401HN is a Switched Mode Power Supply (SMPS) controller IC. It operates in combination with a phase cut dimmer and a 12 V (AC or DC) low voltage electronic or magnetic transformer. It is designed to drive LED devices and include a dimmer conduction phase detector. The chip includes a hysteretic controller for the power converter. It is most suitable for use with a linear LED current source. Two embedded Proportional-Integral (PI) controllers and a 0.052 % resolution PWM generator, adjusted by the dimmer conduction phase, ensure excellent LED current stability for a dimming range from 100 % to less than 5 %.