L6585DE

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 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 ■ Figure 1. April 2009 Rev 2 1/33 www.st.com 33 Free Datasheet http://www.datasheet4u.com/ Contents L6585DE Contents 1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1 1.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 4 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....