CRD1500-FB 90W, 19V Power Adaptor Demo Design Using the CS1500 Digital Power Factor Correction IC Main Features General Description Universal Input 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 ontime, variable frequency, & DCM, which ensures unity power factor. – 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 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/PFCdatasheets/CRD1500-FB-17 19VDC AC Line Input GND (90-265 VAC) Actual Size: 50mm x 142mm www.cirrus.com Copyright Cirrus Logic, Inc. 2010 (All Rights Reserved) JUN ‘10 DS924PB1