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| www.irf.com ? 2011 international rectifier IRS2580DSPBF combo8 pfc + half-bridge ballast ic features pfc, ballast control and half-bridge driver in one ic critical-conduction mode boost-type pfc internal vbus sensing and regulation internal pfc loop compensation programmable pfc over-current ignition voltage regulation (current or voltage co ntrol) half-bridge non-zvs protection half-bridge over-current protection using low-side mosfet rds (on) programmable preheat time programmable preheat frequency programmable ignition ramp time programmable run frequency voltage-controlled oscillator (vco) analog input latched eol window comparator on vcc internal eol fault timer fixed dead-time (1.7usec typ.) dc bus under-voltage reset lamp insert auto-restart micro-power start-up current under-voltage lock-out mode small 8-pin soic package lead-free typical application electronic ballast product summary topology boost + half-bridge v offset 600 v v out vcc i o+ & i o- (typical) 180 ma & 260 ma dead-time 1.7us package options typical application block diagram
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