Product Overview NCP1652: Controller, PFC, High Efficiency, Single Stage For complete documentation, see the data sheet Product Description The NCP1652 is a highly integrated controller for implementing power factor correction (PFC) and isolated step down ac-dc power conversion in a single stage, resulting in a lower cost and reduced part count solution. This controller is ideal for notebook adapters, battery chargers and other off-line applications with power requirements between 75 W and 150 W. The single stage is based on the flyback converter and it is designed to operate in continuous conduction (CCM) or discontinuous conduction (DCM) modes. The NCP1652 increases the system efficiency by incorporating a secondary driver with adjustable nonoverlap delay for controlling a synchronous rectifier switch in the secondary side, an active clamp switch in the primary or both. In addition, the controller features a proprietary Soft-Skip™ to reduce acoustic noise at light loads. Other features found in the NCP1652 include a high voltage startup circuit, voltage feedforward, brown out detector, internal overload timer, latch input and a high accuracy multiplier. Features Benefits • Dual Control Outputs with Adjustable Non Overlap Delay for Driving a Synchronous Rectifier Switch, an Active Clamp Switch or Both • Voltage Feedforward • Frequency Jittering • Proprietary Soft-Skip™ at Light Loads • High Accuracy Multiplier • Brown Out Detector • Internal 150 ms Fault Timer • Independent Latch-Off Input Facilitates Implementation of Overvoltage and Overtemperature Fault Detectors • Single Stage PFC and Isolated Step Down Converter • Continuous or Discontinuous Conduction Mode Operation For more features, see the data sheet Applications • Improves Efficiency • • • • Improves Loop Response Reduces EMI Signature Reduces Acoustic Noise Reduces Input Line Harmonics End Products • High Current Battery Chargers • Front Ends for Distributed Power Systems • High Power Solid State Lighting • Notebook Adapter Part Electrical Specifications Product Compliance Status PFC Mode Freque Control Topolo ncy Mode gy Operati on fSW Typ VCC (kHz) Max (V) Drive Cap. (mA) UVLO (V) Latch UVP Inhibiti on Packag e Type NCP1652ADR2G Pb-free Active DCM Fixed Current StepMode Down 100 20 1 9.3 11.3 Yes Yes YES SOIC16 Active CCM Fixed Current StepMode Down 100 20 1 9.3 11.3 Yes Yes YES SOIC16 Fixed Current StepMode Down 100 20 1 9.3 11.3 Yes Yes YES SOIC20W Halide free NCP1652DR2G Pb-free Halide free NCP1652DWR2G Pb-free Halide free DCM Active CCM DCM Application Diagram For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016