L6585DE Datasheet, PDF (1/33 Pages) STMicroelectronics – Combo IC for PFC and ballast control

L6585DE
Combo IC for PFC and ballast control
Features
■ PFC section
– transition mode PFC with over-current
protection
– over-voltage protection
– feedback disconnection
– under-voltage lockout
– PFC choke saturation detection
– THD optimizer
■ Half-bridge section
– preheating and ignition phases
independently programmable
– 3 % oscillator precision
– 1.2 µs dead time
Figure 1. Block diagram
SO-20
– programmable and precise end-of-life
protection compliant with all ballast
configurations
– smart hard switching detection
– fast ignition voltage control with choke
saturation detection
– half-bridge over-current control
April 2009
Rev 2
1/33
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