EVAL6585D-230V Datasheet, PDF (1/6 Pages) STMicroelectronics – Combo IC for PFC and ballast control

EVAL6585D-230V
Combo IC for PFC and ballast control
Data Brief
General description
A new control IC, the L6585, has been designed
to manage electronic ballasts for fluorescent
lamps; it includes both Power Factor Correction
and half-bridge sections and embeds a wide
range of features to provide an energy saving and
cost effective solution.
The high-voltage single chip approach optimizes
the management of lamp critical conditions like
start-up (pre-heating and ignition), fault and lamp
replacement. In fact, the internal logic is able to
carry out all of these phases being steered by
precise internal references and timings.
The PFC section has superior performance in
terms of harmonic content mitigation. High Power
Factor (PF) and Total Harmonic Distortion (THD)
reduction are obtained as required by
international norms, especially in case of
Universal input voltage operation.
Particular care has been dedicated to pre-heating
and ignition phases prior to lamp starting, in order
to ensure the proper filament warming up and
extend lamp life.
Innovative circuitry allows an improved control of
the lamp voltage during ignition as well protection
against failures due to lamp ageing. The use of
this new control IC simplifies the industrialization
of electronic ballasts increasing the application
reliability and reducing its dimensions and cost.
For more info about the L6585D please refer to
the related datasheet available at www.st.com.
Evaluation board
November 2006
Rev 1
For further information contact your local STMicroelectronics sales office.
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