NCP1615: Power Factor Controller, High Voltage, Active X2

The NCP1615 is a high voltage PFC controller designed to drive PFC boost stages based on an innovative Current Controlled Frequency Foldback (CCFF) method. In this mode, the circuit classically 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 of about 26 kHz when the input current is zero. CCFF maximizes the efficiency at both nominal and light load. In particular, the standby losses are reduced to a minimum. An innovative circuitry allows near-unity power factor even when the switching frequency is reduced. This product is IEC60950 compliant. Please see the test report and certification in the Conformance report section below.

Features
  • High Voltage Start-Up Circuit
  • Critical conduction mode with current controlled frequency foldback
  • Integrated Input Filter Capacitor (X2) Discharge Circuitry
  • Dynamic Response Enhancer
  • Soft Overvoltage Protection
  • -500 mA/+800 mA Drive Capability
  • Two Vcc startup versions: 10.5 V (A & B) and 17 V (C & D)
  • AC Line Brownout Detection
  • PFC Okay Output
Benefits
  • Improved efficiency at light load and fast startup time
  • Optimizes conversion efficiency across load range
  • Improved light load efficiency and elimination of external resistors
  • Improved transient response for line and load steps
  • Reduces acoustic noise and stress in the event of an overvoltage fault
  • Supports wide range of MOSFETs and power levels
  • C & D versions allows smaller Vcc capacitor and faster startup in self biased applications
  • Protects boost stage power components during line fault conditions
  • Can enable downstream controller of stable PFC rail
Applications
  • Off-line power supplies
  • Lighting Ballast
  • LED Lighting Drivers and Power Supplies
End Products
  • All-In-One Computers
  • High Powered Adapters
  • Flat TV / LED-TV / LCD-TV / Plasma
Design & Development Tools (1)
Document TitleDocument ID/SizeRevisionRevision Date
NCP1615 Design WorksheetNCP1615 Design Tool (172kB)0
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
High Voltage High Efficiency Power Factor Correction ControllerNCP1615/D (1663kB)8Jun, 2016
Evaluation Board Documents (4)
Document TitleDocument ID/SizeRevisionRevision Date
NCP1615GEVB Bill of MaterialsNCP1615GEVB_BOM_ROHS (118kB)0
NCP1615GEVB Gerber Layout Files (Zip Format)NCP1615GEVB_GERBER (84kB)0
NCP1615GEVB SchematicNCP1615GEVB_SCHEMATIC (72kB)0
NCP1615GEVB Test ProcedureNCP1615GEVB_TEST_PROCEDURE (325kB)0
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOIC-16 NB, LESS PIN 15752AC (59.5kB)O
SOIC14 N MISSING PIN 13751AN (44.9kB)A
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
NCP1615GEVBActivePb-freeHigh Voltage PFC Controller with Current Controlled Frequency Foldback Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP1615A1DR2GActivePb-free Halide freeSOIC-14 NB751AN1Tape and Reel2500$0.7333
NCP1615ADR2GActivePb-free Halide freeSOIC-14 NB751AN1Tape and Reel2500$0.7333
NCP1615C2DR2GActivePb-free Halide freeSOIC-16 NB752AC1Tape and Reel2500$0.7333
NCP1615C3DR2GActivePb-free Halide freeSOIC-16 NB752AC1Tape and Reel2500$0.7333
NCP1615C4DR2GActivePb-free Halide freeSOIC-16 NB752AC1Tape and Reel2500$0.7333
NCP1615C5DR2GActivePb-free Halide freeSOIC-16 NB752AC1Tape and Reel2500$0.7333
NCP1615CDR2GActivePb-free Halide freeSOIC-16 NB752AC1Tape and Reel2500$0.7333
NCP1615D2DR2GActivePb-free Halide freeSOIC-16 NB752AC1Tape and Reel2500$0.7333
NCP1615DDR2GActivePb-free Halide freeSOIC-16 NB752AC1Tape and Reel2500$0.7333
Specifications
ProductPFC ModeFrequency OperationControl ModeTopologyfSW Typ (kHz)VCC Max (V)Drive Cap. (mA)UVLO (V)LatchUVPInhibition
NCP1615A1DR2GCRM DCMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
NCP1615ADR2GCRM DCMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
NCP1615C2DR2GDCM CRMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
NCP1615C3DR2GCRM DCMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
NCP1615C4DR2GDCM CRMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
NCP1615C5DR2GCRM DCMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
NCP1615CDR2GDCM CRMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
NCP1615D2DR2GCRM DCMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
NCP1615DDR2GCRM DCMVariableCurrent ModeStep-UpVariable28500 / 8009YesYesYes
High Voltage High Efficiency Power Factor Correction Controller (1663kB) NCP1615
NCP1615 Design Worksheet NCP1615
NCP1615GEVB BOM ROHS - 118 KB NCP1615GEVB
NCP1615GEVB GERBER - 84 KB NCP1615GEVB
NCP1615GEVB SCHEMATIC - 72 KB NCP1615GEVB
NCP1615GEVB TEST PROCEDURE - 325 KB NCP1615GEVB
SOIC14 N MISSING PIN 13 NCP1615
SOIC-16 NB, LESS PIN 15 NCP1615
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