NCP1615 High Voltage High Efficiency Power Factor Correction Controller The NCP1615 is a high voltage PFC controller designed to drive PFC boost stages based on an innovative Current Controlled www.onsemi.com Frequency Foldback (CCFF) method. In this mode, the circuit operates in critical conduction mode (CrM) when the inductor current exceeds a programmable value. When the current is below this preset level, the NCP1615 linearly decays the frequency down to a minimum 14 16 of about 26 kHz at the sinusoidal zerocrossing. CCFF maximizes the 1 1 efficiency at both nominal and light load. In particular, the standby SOIC16 NB SOIC14 NB losses are reduced to a minimum. Innovative circuitry allows near CASE 752AC CASE 751AN unity power factor even when the switching frequency is reduced. MARKING DIAGRAMS The integrated high voltage startup circuit eliminates the need for 16 14 external startup components and consumes negligible power during normal operation. Housed in a SOIC14 or SOIC16 package, the NCP1615xxG NCP1615xxG AWLYWW AWLYWW NCP1615 incorporates the features necessary for robust and compact PFC stages, with few external components. 1 1 General Features NCP1615xx = Specific Device Code xx = A, A1, B, C, C2, C3, C4, C5, D or D2 High Voltage StartUp Circuit with Integrated Brownout Detection A = Assembly Location Input to Force Controller into Standby Mode WL = Wafer Lot Restart Pin Allows Adjustment of Bulk Voltage Hysteresis in Y = Year WW = Work Week Standby Mode G = PbFree Package Skip Mode Near the Line Zero Crossing Fast Line / Load Transient Compensation ORDERING INFORMATION Valley Switching for Improved Efficiency See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. High Drive Capability: 500 mA/+800 mA Wide V Range: from 9.5 V to 28 V CC Input Voltage Range Detection Open Pin Protection for FB and FOVP/BUV Pins Input X2 Capacitor Discharge Circuitry Internal Thermal Shutdown Power Saving Mode (PSM) Enables < 30 mW Noload BiLevel Latch Input for OVP and OTP Power Consumption Bypass/Boost Diode Short Circuit Protection This is a Pb and Halogen Free Device Open Ground Pin Protection Safety Features Typical Applications Adjustable Bulk Undervoltage Detection (BUV) PC Power Supplies Soft Overvoltage Protection Off Line Appliances Requiring Power Factor Correction Line Overvoltage Protection LED Drivers Overcurrent Protection Flat TVs HVFB HV PIN CONNECTIONS FB HV FB Restart Restart VCC FOVP/BUV VCC FOVP/BUV DRV VControl DRV VControl GND GND FFControl FFControl CS/ZCD CS/ZCD Fault Fault PFCOK STDBY PSTimer STDBY PFCOK NCP1615 16 Pins (Top View) NCP1615 14 Pins (Top View) Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: June, 2016 Rev. 8 NCP1615/DNCP1615 Dbypass Lin Dboost Lboost F1 Mboost Vaux Cbulk L Rdrv BD1 DRV Rfb1 L1 L1 N1 Rgs Daux Lcm BD3 RV1 BD2 CX1 Rhv1 Rhv2 Cin1 Raux Rfb2 Rsense Cin2 Dhv1 Dhv2 N1 Rzcd U1 Rcs Rrestart1 HVFB N HV BD4 FB Restart PFCok PFCok Rfovp/buv1 FOVP/BUV CS/ZCD STDBY Standby Fault Control VCC Rrestart2 FFcontrol DRV DRV PStimer GND Rcomp1 Rfovp/buv2 PSM Control NCP1615C/D Cvcc Ccomp2 Rfault Rff Ext. Vcc Ccomp1 Cpsm Rpsm Vaux Figure 1. NCP1615C/D Typical Application Circuit Dbypass Lin Dboost Lboost F1 Mboost Cbulk L Vaux Rdrv BD1 DRV Rfb1 RX1 L1 L1 N1 Rgs Lcm Daux BD3 RV1 BD2 Rhv1 Rhv2 Cin1 CX1 Raux Rfb2 Rsense Dhv1 Dhv2 RX2 Cin2 N1 U1 Rrestart1 Rzcd Rcs N HV FB BD4 Restart Rfovp/buv1 PFCok FOVP/BUV PFCok Standby CS/ZCD STDBY Fault VCC Rrestart2 Control DRV DRV FFcontrol GND Rcomp1 Rfovp/buv2 NCP1615A/B Cvcc Ccomp2 Rfault Rff Ext. Vcc Ccomp1 Vaux Figure 2. NCP1615A/B Typical Application Circuit www.onsemi.com 2