NCP1632DR2G Maximum Switching Frequency, onsemi NCP1632DR2G, Power Factor Controller, 130 kHz, 10.4 V 16-Pin, SOIC

The NCP1632 integrated a dual MOSFET driver for interleaved PFC applications. Interleaving consists of paralleling two small stages in lieu of a bigger one, more difficult to design. This approach has several merits like the ease of implementation, the use of smaller components or a better distribution of the heating. Also, Interleaving extends the power range of Critical Conduction Mode that is an efficient and cost-effective technique (no need for low trr diodes). In addition, the NCP1632 drivers are 180o phase shifted for a significantly reduced current ripple. Housed in a SOIC16 package, the circuit incorporates all the features necessary for building robust and compact interleaved PFC stages, with a minimum of external components.
180° out of phase operationLow EMI and reduces RMS current in the bulk capacitorFrequency Clamped Critical conduction Mode (FCCrM) operationOptimize efficiency over the load rangeFrequency foldback at low powerImprove light load efficiencyIntegrated Overcurrent protection, Overvoltage protection, UVLO and brown-out protectionIncrease system reliabilityApplicationsAll Off Line Appliance Requiring Power Factor CorrectionSMPSFlat panel TVsComputer Power SuppliesLCD TVServer power, networking power