NCP1680ABD1R2G

Product Overview NCP1680: Totem Pole Critical Conduction Mode (CRM) Power Factor Correction Controller For complete documentation, see the data sheet. The NCP1680 is a CRM PFC controller IC designed to drive the bridgeless totem-pole PFC topology. The bridgeless totempole PFC is a power factor correction architecture that consists of a fast switching leg driven at the PWM switching frequency and a second leg that operates at the AC line frequency. This topology eliminates the diode bridge present at the input of a conventional PFC circuit, allowing significant improvement in the power stage efficiency. Features Benefits • Totem Pole PFC Topology Eliminates Input Diode Bridge • Critical Conduction Mode (CRM) Operation • Discontinuous Conduction Mode (DCM) with Valley Turn On Under Light Load Condition • Frequency Foldback in DCM With 25 kHz Minimum Frequency • Skip Mode in Very Light Load Condition • Proprietary Current Sense Scheme • Digital Voltage Loop Compensation • AC Line Monitoring Circuit & AC Phase Detection • Near Unity Power Factor in All Operating Modes • PFC OK Indicator • Enables High Efficiency & Compact Design • Optimized Performance Across Power Levels • Optimized Performance Across Power Levels • Prevents Operation in Audible Range • • • • • • Complies with Energy Efficiency Regulatory Standards Cycle-by-Cycle Current Limit Without Hall Effect Sensor Simplifies Design & Reduces External Components Simplifies Design & Reduces External Components Complies with Energy Efficiency Regulatory Standards Allows Communication with Downstream Converter to Optimize System Performance For more features, see the data sheet Applications End Products • Power Factor Correction • Offline Power Supply • • • • • Industrial Power Supplies Telecom 5G Power Networking Power Gaming Console Power Supplies UHD TV Power Supplies Part Electrical Specifications Product Pricing ($/Unit) Compliance Status PFC Mode Frequ Contro Topolo fSW ency l Mode gy Typ Operat (kHz) ion NCP1680AAD1R2G 1.43 Pb-free NEW CRM Variabl Curren Stepe t/Volta Up ge Mode NEW CRM Variabl Curren Stepe t/Volta Up ge Mode Halide free non AECQ and PPAP NCP1680ABD1R2G 1.43 Pb-free Halide free non AECQ and PPAP Drive Cap. (mA) UVLO (V) Latch UVP Inhibiti on Packa ge Type 25 kHz 30 to 130 kHz 100 / 100 10.5 Yes Yes No SOIC16 25 kHz 30 to 275 kHz 100 / 100 10.5 Yes Yes No SOIC16 For more information please contact your local sales support at www.onsemi.com. Created on: 9/26/2021 VCC Max (V)