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L6572 - High voltage smart ballast controller

General Description

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Key Features

  • 600 V half-bridge driver.
  • Integrated bootstrap diode.
  • Failure protection logic.
  • Programmable deadtime.
  • Programmable preheated start.
  • Two-step dimming with programmable dimmed current.
  • Thermal powerboost.
  • Closed loop control operation SO14.

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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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L6572 High voltage smart ballast controller Datasheet − production data Features ■ 600 V half-bridge driver ■ Integrated bootstrap diode ■ Failure protection logic ■ Programmable deadtime ■ Programmable preheated start ■ Two-step dimming with programmable dimmed current ■ Thermal powerboost ■ Closed loop control operation SO14 Applications ■ CFLi ■ Electronic ballast Figure 1. Block diagram GND TSD VS COUNTER DAC IGNITION RECOGNI- TION 2 STEP DIMMING UVLO VREF OUTPUT STAGE DEAD TIME TPB ZVS HSD LSD CLOCK RATED CURRENT CURRENT REGULATION SIGNAL PROCESSING BOOT HVG OUT LVG SENSE RCL RPH RNO RDO RDT AM14881v1 October 2012 This is information on a product in full production. Doc ID 023882 Rev 1 1/22 www.st.com 22 Contents Contents L6572 1 Description . . . .