copyright ? cirrus logic, inc. 2010 (all rights reserved) www.cirrus.com actual size: 50mm x 142mm ac line input 19vdc (90-265 vac) gnd CRD1500-FB 90w, 19v power adapter de mo design using the cs1500 digital power factor correction ic main features ? universal input ? mains range: 90~265 vac ? line frequency: 45~65 hz ? rated output specification: 19 v, 90 w ? en6100-3-2 class-d compliance ? efficiency: 87% @ 90 w, 230 vac ? low no-load power dissipation ? low pfc component count ? board dimension: 50 mm x 142 mm general description the CRD1500-FB circuit has two stages: a digitally controlled front-end pfc and a quasi-resonant flyback converter. the cs1500 is a high-performance power factor correction (pfc) controller for universal ac input that uses a proprietary digital algorithm with variable on- time, variable frequency, & dcm, which ensures unity power factor. the quasi-resonant flyback converter uses the l6566a flyback controller and is dedicated to controlling the circuit?s standby/normal operation mode, which controls the on/off state of the pfc stage by means of a dedicated pin (vcc_pfc), which helps to achieve an excellent efficiency at light-load and no-load conditions. to get the complete data sheet, please visit: www.cirrus.com/pfcdata sheets/CRD1500-FB-41 jun ?10 ds924pb1
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