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UBA20270 - 600V Driver IC

General Description

The UBA20270 is a high-voltage power IC intended to control higher powered self ballasted Compact Fluorescent Lamp (CFL) lighting applications.

Key Features

  • 2.1 Half-bridge features.
  • Integrated high-voltage level-shift function with integrated bootstrap diode 2.2 Preheat and ignition features.
  • Coil saturation protection during ignition.
  • Adjustable preheat time.
  • Adjustable preheat current.
  • Ignition lamp current detection 2.3 Lamp boost features.
  • Adjustable boost timing.
  • Fixed boost current ratio of 1.5.
  • Gradually boost to burn transition timing 2.4 Dim features.
  • Continuously variable dimming function for s.

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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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UBA20270 600 V Driver IC for dimmable compact fluorescent lamps Rev. 2 — 8 September 2011 Product data sheet 1. General description The UBA20270 is a high-voltage power IC intended to control higher powered self ballasted Compact Fluorescent Lamp (CFL) lighting applications. The UBA20270 is a controller circuit with advanced features for dimming and has a lamp current controlled boost feature for boosting cold (amalgam) CFLs. The controller contains a half-bridge drive function for CFL, a high-voltage level-shift circuit with integrated bootstrap diode. In addition, the controller contains an oscillator function, a current control function both for preheat and burn, a timer function and protection circuits.