NCP1927
features necessary for building a robust and pact PFC stage while minimizing the number of external ponents. The fixed- frequency current- mode flyback controller features a proprietary Soft- Skip™ mode bined with frequency foldback enabling excellent efficiency during light load conditions while achieving very low standby power consumption. Soft
- Skip dramatically reduces the risk of acoustic noise, therefore enabling the use of inexpensive transformers and capacitors in the clamping network. Frequency jittering and ramp pensation make this controller an excellent fit for converters where ruggedness and ponent cost are the key constraints. mon General Features http://onsemi. MARKING DIAGRAM
POVUV PFB Shutdown PControl PCT PZCD SOIC- 16 CASE 751B A WL Y WW G PCS GTS = Assembly Location = Wafer Lot = Year = Work Week = Pb- Free Package NCP1927 AWLYWWG IENABLE PSKIP PDRV VCC FDRV GND FFB FCS
- Wide VCC Range from 10 V to 30 V
- Very Low Startup Current Consumption
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(v 20 m A MAX)...
